Patch 7.1.045

[MacVim.git] / src / gui_w48.c

/* vi:set ts=8 sts=4 sw=4:
 *
 * VIM - Vi IMproved            by Bram Moolenaar
 *                              GUI support by Robert Webb
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 * See README.txt for an overview of the Vim source code.
 */
/*
 * gui_w48.c:  This file is included in gui_w16.c and gui_w32.c.
 *
 * GUI support for Microsoft Windows (Win16 + Win32 = Win48 :-)
 *
 * The combined efforts of:
 * George V. Reilly <george@reilly.org>
 * Robert Webb
 * Vince Negri
 * ...and contributions from many others
 *
 */

#include "vim.h"
#include "version.h"    /* used by dialog box routine for default title */
#ifdef DEBUG
# include <tchar.h>
#endif
#ifndef __MINGW32__
# include <shellapi.h>
#endif
#if defined(FEAT_TOOLBAR) || defined(FEAT_BEVAL) || defined(FEAT_GUI_TABLINE)
# include <commctrl.h>
#endif
#ifdef WIN16
# include <commdlg.h>
# include <shellapi.h>
# ifdef WIN16_3DLOOK
#  include <ctl3d.h>
# endif
#endif
#include <windowsx.h>

#ifdef GLOBAL_IME
# include "glbl_ime.h"
#endif

#ifdef FEAT_MENU
# define MENUHINTS              /* show menu hints in command line */
#endif

/* Some parameters for dialog boxes.  All in pixels. */
#define DLG_PADDING_X           10
#define DLG_PADDING_Y           10
#define DLG_OLD_STYLE_PADDING_X 5
#define DLG_OLD_STYLE_PADDING_Y 5
#define DLG_VERT_PADDING_X      4       /* For vertical buttons */
#define DLG_VERT_PADDING_Y      4
#define DLG_ICON_WIDTH          34
#define DLG_ICON_HEIGHT         34
#define DLG_MIN_WIDTH           150
#define DLG_FONT_NAME           "MS Sans Serif"
#define DLG_FONT_POINT_SIZE     8
#define DLG_MIN_MAX_WIDTH       400
#define DLG_MIN_MAX_HEIGHT      400

#define DLG_NONBUTTON_CONTROL   5000    /* First ID of non-button controls */

#ifndef WM_XBUTTONDOWN /* For Win2K / winME ONLY */
# define WM_XBUTTONDOWN         0x020B
# define WM_XBUTTONUP           0x020C
# define WM_XBUTTONDBLCLK       0x020D
# define MK_XBUTTON1            0x0020
# define MK_XBUTTON2            0x0040
#endif

#ifdef PROTO
/*
 * Define a few things for generating prototypes.  This is just to avoid
 * syntax errors, the defines do not need to be correct.
 */
# define APIENTRY
# define CALLBACK
# define CONST
# define FAR
# define NEAR
# define _cdecl
typedef int BOOL;
typedef int BYTE;
typedef int DWORD;
typedef int WCHAR;
typedef int ENUMLOGFONT;
typedef int FINDREPLACE;
typedef int HANDLE;
typedef int HBITMAP;
typedef int HBRUSH;
typedef int HDROP;
typedef int INT;
typedef int LOGFONT[];
typedef int LPARAM;
typedef int LPCREATESTRUCT;
typedef int LPCSTR;
typedef int LPCTSTR;
typedef int LPRECT;
typedef int LPSTR;
typedef int LPWINDOWPOS;
typedef int LPWORD;
typedef int LRESULT;
typedef int HRESULT;
# undef MSG
typedef int MSG;
typedef int NEWTEXTMETRIC;
typedef int OSVERSIONINFO;
typedef int PWORD;
typedef int RECT;
typedef int UINT;
typedef int WORD;
typedef int WPARAM;
typedef int POINT;
typedef void *HINSTANCE;
typedef void *HMENU;
typedef void *HWND;
typedef void *HDC;
typedef void VOID;
typedef int LPNMHDR;
typedef int LONG;
#endif

#ifndef GET_X_LPARAM
# define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
#endif

static void _OnPaint( HWND hwnd);
static void clear_rect(RECT *rcp);
static int gui_mswin_get_menu_height(int fix_window);

static WORD             s_dlgfntheight;         /* height of the dialog font */
static WORD             s_dlgfntwidth;          /* width of the dialog font */

#ifdef FEAT_MENU
static HMENU            s_menuBar = NULL;
#endif
#ifdef FEAT_TEAROFF
static void rebuild_tearoff(vimmenu_T *menu);
static HBITMAP  s_htearbitmap;      /* bitmap used to indicate tearoff */
#endif

/* Flag that is set while processing a message that must not be interrupted by
 * processing another message. */
static int              s_busy_processing = FALSE;

static int              destroying = FALSE;     /* call DestroyWindow() ourselves */

#ifdef MSWIN_FIND_REPLACE
static UINT             s_findrep_msg = 0;      /* set in gui_w[16/32].c */
static FINDREPLACE      s_findrep_struct;
static HWND             s_findrep_hwnd = NULL;
static int              s_findrep_is_find;      /* TRUE for find dialog, FALSE
                                                   for find/replace dialog */
#endif

static HINSTANCE        s_hinst = NULL;
#if !defined(FEAT_SNIFF) && !defined(FEAT_GUI)
static
#endif
HWND                    s_hwnd = NULL;
static HDC              s_hdc = NULL;
static HBRUSH   s_brush = NULL;

#ifdef FEAT_TOOLBAR
static HWND             s_toolbarhwnd = NULL;
#endif

#ifdef FEAT_GUI_TABLINE
static HWND             s_tabhwnd = NULL;
static int              showing_tabline = 0;
#endif

static WPARAM           s_wParam = 0;
static LPARAM           s_lParam = 0;

static HWND             s_textArea = NULL;
static UINT             s_uMsg = 0;

static char_u           *s_textfield; /* Used by dialogs to pass back strings */

static int              s_need_activate = FALSE;

/* This variable is set when waiting for an event, which is the only moment
 * scrollbar dragging can be done directly.  It's not allowed while commands
 * are executed, because it may move the cursor and that may cause unexpected
 * problems (e.g., while ":s" is working).
 */
static int allow_scrollbar = FALSE;

#ifdef GLOBAL_IME
# define MyTranslateMessage(x) global_ime_TranslateMessage(x)
#else
# define MyTranslateMessage(x) TranslateMessage(x)
#endif

#if (defined(WIN3264) && defined(FEAT_MBYTE)) || defined(GLOBAL_IME)
  /* use of WindowProc depends on wide_WindowProc */
# define MyWindowProc vim_WindowProc
#else
  /* use ordinary WindowProc */
# define MyWindowProc DefWindowProc
#endif

extern int current_font_height;     /* this is in os_mswin.c */

static struct
{
    UINT    key_sym;
    char_u  vim_code0;
    char_u  vim_code1;
} special_keys[] =
{
    {VK_UP,             'k', 'u'},
    {VK_DOWN,           'k', 'd'},
    {VK_LEFT,           'k', 'l'},
    {VK_RIGHT,          'k', 'r'},

    {VK_F1,             'k', '1'},
    {VK_F2,             'k', '2'},
    {VK_F3,             'k', '3'},
    {VK_F4,             'k', '4'},
    {VK_F5,             'k', '5'},
    {VK_F6,             'k', '6'},
    {VK_F7,             'k', '7'},
    {VK_F8,             'k', '8'},
    {VK_F9,             'k', '9'},
    {VK_F10,            'k', ';'},

    {VK_F11,            'F', '1'},
    {VK_F12,            'F', '2'},
    {VK_F13,            'F', '3'},
    {VK_F14,            'F', '4'},
    {VK_F15,            'F', '5'},
    {VK_F16,            'F', '6'},
    {VK_F17,            'F', '7'},
    {VK_F18,            'F', '8'},
    {VK_F19,            'F', '9'},
    {VK_F20,            'F', 'A'},

    {VK_F21,            'F', 'B'},
#ifdef FEAT_NETBEANS_INTG
    {VK_PAUSE,          'F', 'B'},      /* Pause == F21 (see gui_gtk_x11.c) */
#endif
    {VK_F22,            'F', 'C'},
    {VK_F23,            'F', 'D'},
    {VK_F24,            'F', 'E'},      /* winuser.h defines up to F24 */

    {VK_HELP,           '%', '1'},
    {VK_BACK,           'k', 'b'},
    {VK_INSERT,         'k', 'I'},
    {VK_DELETE,         'k', 'D'},
    {VK_HOME,           'k', 'h'},
    {VK_END,            '@', '7'},
    {VK_PRIOR,          'k', 'P'},
    {VK_NEXT,           'k', 'N'},
    {VK_PRINT,          '%', '9'},
    {VK_ADD,            'K', '6'},
    {VK_SUBTRACT,       'K', '7'},
    {VK_DIVIDE,         'K', '8'},
    {VK_MULTIPLY,       'K', '9'},
    {VK_SEPARATOR,      'K', 'A'},      /* Keypad Enter */
    {VK_DECIMAL,        'K', 'B'},

    {VK_NUMPAD0,        'K', 'C'},
    {VK_NUMPAD1,        'K', 'D'},
    {VK_NUMPAD2,        'K', 'E'},
    {VK_NUMPAD3,        'K', 'F'},
    {VK_NUMPAD4,        'K', 'G'},
    {VK_NUMPAD5,        'K', 'H'},
    {VK_NUMPAD6,        'K', 'I'},
    {VK_NUMPAD7,        'K', 'J'},
    {VK_NUMPAD8,        'K', 'K'},
    {VK_NUMPAD9,        'K', 'L'},

    /* Keys that we want to be able to use any modifier with: */
    {VK_SPACE,          ' ', NUL},
    {VK_TAB,            TAB, NUL},
    {VK_ESCAPE,         ESC, NUL},
    {NL,                NL, NUL},
    {CAR,               CAR, NUL},

    /* End of list marker: */
    {0,                 0, 0}
};

/* Local variables */
static int              s_button_pending = -1;
static int              s_x_pending;
static int              s_y_pending;
static UINT             s_kFlags_pending;
static UINT             s_wait_timer = 0;   /* Timer for get char from user */
static int              s_timed_out = FALSE;
static int              dead_key = 0;   /* 0 - no dead key, 1 - dead key pressed */

#ifdef WIN3264
static OSVERSIONINFO os_version;    /* like it says.  Init in gui_mch_init() */
#endif

#ifdef FEAT_BEVAL
/* balloon-eval WM_NOTIFY_HANDLER */
static void Handle_WM_Notify __ARGS((HWND hwnd, LPNMHDR pnmh));
static void TrackUserActivity __ARGS((UINT uMsg));
#endif

/*
 * For control IME.
 */
#ifdef FEAT_MBYTE
# ifdef USE_IM_CONTROL
static LOGFONT norm_logfont;
# endif
#endif

#ifdef FEAT_MBYTE_IME
static LRESULT _OnImeNotify(HWND hWnd, DWORD dwCommand, DWORD dwData);
#endif

#ifdef DEBUG_PRINT_ERROR
/*
 * Print out the last Windows error message
 */
    static void
print_windows_error(void)
{
    LPVOID  lpMsgBuf;

    FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
                  NULL, GetLastError(),
                  MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
                  (LPTSTR) &lpMsgBuf, 0, NULL);
    TRACE1("Error: %s\n", lpMsgBuf);
    LocalFree(lpMsgBuf);
}
#endif

/*
 * Cursor blink functions.
 *
 * This is a simple state machine:
 * BLINK_NONE   not blinking at all
 * BLINK_OFF    blinking, cursor is not shown
 * BLINK_ON     blinking, cursor is shown
 */

#define BLINK_NONE  0
#define BLINK_OFF   1
#define BLINK_ON    2

static int              blink_state = BLINK_NONE;
static long_u           blink_waittime = 700;
static long_u           blink_ontime = 400;
static long_u           blink_offtime = 250;
static UINT             blink_timer = 0;

    void
gui_mch_set_blinking(long wait, long on, long off)
{
    blink_waittime = wait;
    blink_ontime = on;
    blink_offtime = off;
}

/* ARGSUSED */
    static VOID CALLBACK
_OnBlinkTimer(
    HWND hwnd,
    UINT uMsg,
    UINT idEvent,
    DWORD dwTime)
{
    MSG msg;

    /*
    TRACE2("Got timer event, id %d, blink_timer %d\n", idEvent, blink_timer);
    */

    KillTimer(NULL, idEvent);

    /* Eat spurious WM_TIMER messages */
    while (PeekMessage(&msg, hwnd, WM_TIMER, WM_TIMER, PM_REMOVE))
        ;

    if (blink_state == BLINK_ON)
    {
        gui_undraw_cursor();
        blink_state = BLINK_OFF;
        blink_timer = (UINT) SetTimer(NULL, 0, (UINT)blink_offtime,
                                                    (TIMERPROC)_OnBlinkTimer);
    }
    else
    {
        gui_update_cursor(TRUE, FALSE);
        blink_state = BLINK_ON;
        blink_timer = (UINT) SetTimer(NULL, 0, (UINT)blink_ontime,
                                                         (TIMERPROC)_OnBlinkTimer);
    }
}

    static void
gui_mswin_rm_blink_timer(void)
{
    MSG msg;

    if (blink_timer != 0)
    {
        KillTimer(NULL, blink_timer);
        /* Eat spurious WM_TIMER messages */
        while (PeekMessage(&msg, s_hwnd, WM_TIMER, WM_TIMER, PM_REMOVE))
            ;
        blink_timer = 0;
    }
}

/*
 * Stop the cursor blinking.  Show the cursor if it wasn't shown.
 */
    void
gui_mch_stop_blink(void)
{
    gui_mswin_rm_blink_timer();
    if (blink_state == BLINK_OFF)
        gui_update_cursor(TRUE, FALSE);
    blink_state = BLINK_NONE;
}

/*
 * Start the cursor blinking.  If it was already blinking, this restarts the
 * waiting time and shows the cursor.
 */
    void
gui_mch_start_blink(void)
{
    gui_mswin_rm_blink_timer();

    /* Only switch blinking on if none of the times is zero */
    if (blink_waittime && blink_ontime && blink_offtime && gui.in_focus)
    {
        blink_timer = (UINT)SetTimer(NULL, 0, (UINT)blink_waittime,
                                                    (TIMERPROC)_OnBlinkTimer);
        blink_state = BLINK_ON;
        gui_update_cursor(TRUE, FALSE);
    }
}

/*
 * Call-back routines.
 */

/*ARGSUSED*/
    static VOID CALLBACK
_OnTimer(
    HWND hwnd,
    UINT uMsg,
    UINT idEvent,
    DWORD dwTime)
{
    MSG msg;

    /*
    TRACE2("Got timer event, id %d, s_wait_timer %d\n", idEvent, s_wait_timer);
    */
    KillTimer(NULL, idEvent);
    s_timed_out = TRUE;

    /* Eat spurious WM_TIMER messages */
    while (PeekMessage(&msg, hwnd, WM_TIMER, WM_TIMER, PM_REMOVE))
        ;
    if (idEvent == s_wait_timer)
        s_wait_timer = 0;
}

/*ARGSUSED*/
    static void
_OnDeadChar(
    HWND hwnd,
    UINT ch,
    int cRepeat)
{
    dead_key = 1;
}

/*
 * Convert Unicode character "ch" to bytes in "string[slen]".
 * Return the length.
 */
    static int
char_to_string(int ch, char_u *string, int slen)
{
    int         len;
    int         i;
#ifdef FEAT_MBYTE
    WCHAR       wstring[2];
    char_u      *ws = NULL;;

    if (os_version.dwPlatformId != VER_PLATFORM_WIN32_NT)
    {
        /* On Windows 95/98 we apparently get the character in the active
         * codepage, not in UCS-2.  If conversion is needed convert it to
         * UCS-2 first. */
        if ((int)GetACP() == enc_codepage)
            len = 0;        /* no conversion required */
        else
        {
            string[0] = ch;
            len = MultiByteToWideChar(GetACP(), 0, string, 1, wstring, 2);
        }
    }
    else
    {
        wstring[0] = ch;
        len = 1;
    }

    if (len > 0)
    {
        /* "ch" is a UTF-16 character.  Convert it to a string of bytes.  When
         * "enc_codepage" is non-zero use the standard Win32 function,
         * otherwise use our own conversion function (e.g., for UTF-8). */
        if (enc_codepage > 0)
            len = WideCharToMultiByte(enc_codepage, 0, wstring, len,
                                                       string, slen, 0, NULL);
        else
        {
            len = 1;
            ws = ucs2_to_enc(wstring, &len);
            if (ws == NULL)
                len = 0;
            else
            {
                if (len > slen) /* just in case */
                    len = slen;
                mch_memmove(string, ws, len);
                vim_free(ws);
            }
        }
    }

    if (len == 0)
#endif
    {
        string[0] = ch;
        len = 1;
    }

    for (i = 0; i < len; ++i)
        if (string[i] == CSI && len <= slen - 2)
        {
            /* Insert CSI as K_CSI. */
            mch_memmove(string + i + 3, string + i + 1, len - i - 1);
            string[++i] = KS_EXTRA;
            string[++i] = (int)KE_CSI;
            len += 2;
        }

    return len;
}

/*
 * Key hit, add it to the input buffer.
 */
/*ARGSUSED*/
    static void
_OnChar(
    HWND hwnd,
    UINT ch,
    int cRepeat)
{
    char_u      string[40];
    int         len = 0;

    len = char_to_string(ch, string, 40);
    if (len == 1 && string[0] == Ctrl_C && ctrl_c_interrupts)
    {
        trash_input_buf();
        got_int = TRUE;
    }

    add_to_input_buf(string, len);
}

/*
 * Alt-Key hit, add it to the input buffer.
 */
/*ARGSUSED*/
    static void
_OnSysChar(
    HWND hwnd,
    UINT cch,
    int cRepeat)
{
    char_u      string[40]; /* Enough for multibyte character */
    int         len;
    int         modifiers;
    int         ch = cch;   /* special keys are negative */

    /* TRACE("OnSysChar(%d, %c)\n", ch, ch); */

    /* OK, we have a character key (given by ch) which was entered with the
     * ALT key pressed. Eg, if the user presses Alt-A, then ch == 'A'. Note
     * that the system distinguishes Alt-a and Alt-A (Alt-Shift-a unless
     * CAPSLOCK is pressed) at this point.
     */
    modifiers = MOD_MASK_ALT;
    if (GetKeyState(VK_SHIFT) & 0x8000)
        modifiers |= MOD_MASK_SHIFT;
    if (GetKeyState(VK_CONTROL) & 0x8000)
        modifiers |= MOD_MASK_CTRL;

    ch = simplify_key(ch, &modifiers);
    /* remove the SHIFT modifier for keys where it's already included, e.g.,
     * '(' and '*' */
    if (ch < 0x100 && !isalpha(ch) && isprint(ch))
        modifiers &= ~MOD_MASK_SHIFT;

    /* Interpret the ALT key as making the key META, include SHIFT, etc. */
    ch = extract_modifiers(ch, &modifiers);
    if (ch == CSI)
        ch = K_CSI;

    len = 0;
    if (modifiers)
    {
        string[len++] = CSI;
        string[len++] = KS_MODIFIER;
        string[len++] = modifiers;
    }

    if (IS_SPECIAL((int)ch))
    {
        string[len++] = CSI;
        string[len++] = K_SECOND((int)ch);
        string[len++] = K_THIRD((int)ch);
    }
    else
    {
        /* Although the documentation isn't clear about it, we assume "ch" is
         * a Unicode character. */
        len += char_to_string(ch, string + len, 40 - len);
    }

    add_to_input_buf(string, len);
}

    static void
_OnMouseEvent(
    int button,
    int x,
    int y,
    int repeated_click,
    UINT keyFlags)
{
    int vim_modifiers = 0x0;

    if (keyFlags & MK_SHIFT)
        vim_modifiers |= MOUSE_SHIFT;
    if (keyFlags & MK_CONTROL)
        vim_modifiers |= MOUSE_CTRL;
    if (GetKeyState(VK_MENU) & 0x8000)
        vim_modifiers |= MOUSE_ALT;

    gui_send_mouse_event(button, x, y, repeated_click, vim_modifiers);
}

/*ARGSUSED*/
    static void
_OnMouseButtonDown(
    HWND hwnd,
    BOOL fDoubleClick,
    int x,
    int y,
    UINT keyFlags)
{
    static LONG s_prevTime = 0;

    LONG    currentTime = GetMessageTime();
    int     button = -1;
    int     repeated_click;

    /* Give main window the focus: this is so the cursor isn't hollow. */
    (void)SetFocus(s_hwnd);

    if (s_uMsg == WM_LBUTTONDOWN || s_uMsg == WM_LBUTTONDBLCLK)
        button = MOUSE_LEFT;
    else if (s_uMsg == WM_MBUTTONDOWN || s_uMsg == WM_MBUTTONDBLCLK)
        button = MOUSE_MIDDLE;
    else if (s_uMsg == WM_RBUTTONDOWN || s_uMsg == WM_RBUTTONDBLCLK)
        button = MOUSE_RIGHT;
#ifndef WIN16 /*<VN>*/
    else if (s_uMsg == WM_XBUTTONDOWN || s_uMsg == WM_XBUTTONDBLCLK)
    {
#ifndef GET_XBUTTON_WPARAM
# define GET_XBUTTON_WPARAM(wParam)     (HIWORD(wParam))
#endif
        button = ((GET_XBUTTON_WPARAM(s_wParam) == 1) ? MOUSE_X1 : MOUSE_X2);
    }
    else if (s_uMsg == WM_CAPTURECHANGED)
    {
        /* on W95/NT4, somehow you get in here with an odd Msg
         * if you press one button while holding down the other..*/
        if (s_button_pending == MOUSE_LEFT)
            button = MOUSE_RIGHT;
        else
            button = MOUSE_LEFT;
    }
#endif
    if (button >= 0)
    {
        repeated_click = ((int)(currentTime - s_prevTime) < p_mouset);

        /*
         * Holding down the left and right buttons simulates pushing the middle
         * button.
         */
        if (repeated_click
                && ((button == MOUSE_LEFT && s_button_pending == MOUSE_RIGHT)
                    || (button == MOUSE_RIGHT
                                          && s_button_pending == MOUSE_LEFT)))
        {
            /*
             * Hmm, gui.c will ignore more than one button down at a time, so
             * pretend we let go of it first.
             */
            gui_send_mouse_event(MOUSE_RELEASE, x, y, FALSE, 0x0);
            button = MOUSE_MIDDLE;
            repeated_click = FALSE;
            s_button_pending = -1;
            _OnMouseEvent(button, x, y, repeated_click, keyFlags);
        }
        else if ((repeated_click)
                || (mouse_model_popup() && (button == MOUSE_RIGHT)))
        {
            if (s_button_pending > -1)
            {
                    _OnMouseEvent(s_button_pending, x, y, FALSE, keyFlags);
                    s_button_pending = -1;
            }
            /* TRACE("Button down at x %d, y %d\n", x, y); */
            _OnMouseEvent(button, x, y, repeated_click, keyFlags);
        }
        else
        {
            /*
             * If this is the first press (i.e. not a multiple click) don't
             * action immediately, but store and wait for:
             * i) button-up
             * ii) mouse move
             * iii) another button press
             * before using it.
             * This enables us to make left+right simulate middle button,
             * without left or right being actioned first.  The side-effect is
             * that if you click and hold the mouse without dragging, the
             * cursor doesn't move until you release the button. In practice
             * this is hardly a problem.
             */
            s_button_pending = button;
            s_x_pending = x;
            s_y_pending = y;
            s_kFlags_pending = keyFlags;
        }

        s_prevTime = currentTime;
    }
}

/*ARGSUSED*/
    static void
_OnMouseMoveOrRelease(
    HWND hwnd,
    int x,
    int y,
    UINT keyFlags)
{
    int button;

    if (s_button_pending > -1)
    {
        /* Delayed action for mouse down event */
        _OnMouseEvent(s_button_pending, s_x_pending,
                                        s_y_pending, FALSE, s_kFlags_pending);
        s_button_pending = -1;
    }
    if (s_uMsg == WM_MOUSEMOVE)
    {
        /*
         * It's only a MOUSE_DRAG if one or more mouse buttons are being held
         * down.
         */
        if (!(keyFlags & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON
                                                | MK_XBUTTON1 | MK_XBUTTON2)))
        {
            gui_mouse_moved(x, y);
            return;
        }

        /*
         * While button is down, keep grabbing mouse move events when
         * the mouse goes outside the window
         */
        SetCapture(s_textArea);
        button = MOUSE_DRAG;
        /* TRACE("  move at x %d, y %d\n", x, y); */
    }
    else
    {
        ReleaseCapture();
        button = MOUSE_RELEASE;
        /* TRACE("  up at x %d, y %d\n", x, y); */
    }

    _OnMouseEvent(button, x, y, FALSE, keyFlags);
}

#ifdef FEAT_MENU
/*
 * Find the vimmenu_T with the given id
 */
    static vimmenu_T *
gui_mswin_find_menu(
    vimmenu_T   *pMenu,
    int         id)
{
    vimmenu_T   *pChildMenu;

    while (pMenu)
    {
        if (pMenu->id == (UINT)id)
            break;
        if (pMenu->children != NULL)
        {
            pChildMenu = gui_mswin_find_menu(pMenu->children, id);
            if (pChildMenu)
            {
                pMenu = pChildMenu;
                break;
            }
        }
        pMenu = pMenu->next;
    }
    return pMenu;
}

/*ARGSUSED*/
    static void
_OnMenu(
    HWND        hwnd,
    int         id,
    HWND        hwndCtl,
    UINT        codeNotify)
{
    vimmenu_T   *pMenu;

    pMenu = gui_mswin_find_menu(root_menu, id);
    if (pMenu)
        gui_menu_cb(pMenu);
}
#endif

#ifdef MSWIN_FIND_REPLACE
/*
 * Handle a Find/Replace window message.
 */
    static void
_OnFindRepl(void)
{
    int     flags = 0;
    int     down;

    if (s_findrep_struct.Flags & FR_DIALOGTERM)
        /* Give main window the focus back. */
        (void)SetFocus(s_hwnd);

    if (s_findrep_struct.Flags & FR_FINDNEXT)
    {
        flags = FRD_FINDNEXT;

        /* Give main window the focus back: this is so the cursor isn't
         * hollow. */
        (void)SetFocus(s_hwnd);
    }
    else if (s_findrep_struct.Flags & FR_REPLACE)
    {
        flags = FRD_REPLACE;

        /* Give main window the focus back: this is so the cursor isn't
         * hollow. */
        (void)SetFocus(s_hwnd);
    }
    else if (s_findrep_struct.Flags & FR_REPLACEALL)
    {
        flags = FRD_REPLACEALL;
    }

    if (flags != 0)
    {
        /* Call the generic GUI function to do the actual work. */
        if (s_findrep_struct.Flags & FR_WHOLEWORD)
            flags |= FRD_WHOLE_WORD;
        if (s_findrep_struct.Flags & FR_MATCHCASE)
            flags |= FRD_MATCH_CASE;
        down = (s_findrep_struct.Flags & FR_DOWN) != 0;
        gui_do_findrepl(flags, s_findrep_struct.lpstrFindWhat,
                                     s_findrep_struct.lpstrReplaceWith, down);
    }
}
#endif

    static void
HandleMouseHide(UINT uMsg, LPARAM lParam)
{
    static LPARAM last_lParam = 0L;

    /* We sometimes get a mousemove when the mouse didn't move... */
    if (uMsg == WM_MOUSEMOVE)
    {
        if (lParam == last_lParam)
            return;
        last_lParam = lParam;
    }

    /* Handle specially, to centralise coding. We need to be sure we catch all
     * possible events which should cause us to restore the cursor (as it is a
     * shared resource, we take full responsibility for it).
     */
    switch (uMsg)
    {
    case WM_KEYUP:
    case WM_CHAR:
        /*
         * blank out the pointer if necessary
         */
        if (p_mh)
            gui_mch_mousehide(TRUE);
        break;

    case WM_SYSKEYUP:    /* show the pointer when a system-key is pressed */
    case WM_SYSCHAR:
    case WM_MOUSEMOVE:   /* show the pointer on any mouse action */
    case WM_LBUTTONDOWN:
    case WM_LBUTTONUP:
    case WM_MBUTTONDOWN:
    case WM_MBUTTONUP:
    case WM_RBUTTONDOWN:
    case WM_RBUTTONUP:
    case WM_XBUTTONDOWN:
    case WM_XBUTTONUP:
    case WM_NCMOUSEMOVE:
    case WM_NCLBUTTONDOWN:
    case WM_NCLBUTTONUP:
    case WM_NCMBUTTONDOWN:
    case WM_NCMBUTTONUP:
    case WM_NCRBUTTONDOWN:
    case WM_NCRBUTTONUP:
    case WM_KILLFOCUS:
        /*
         * if the pointer is currently hidden, then we should show it.
         */
        gui_mch_mousehide(FALSE);
        break;
    }
}

    static LRESULT CALLBACK
_TextAreaWndProc(
    HWND hwnd,
    UINT uMsg,
    WPARAM wParam,
    LPARAM lParam)
{
    /*
    TRACE("TextAreaWndProc: hwnd = %08x, msg = %x, wParam = %x, lParam = %x\n",
          hwnd, uMsg, wParam, lParam);
    */

    HandleMouseHide(uMsg, lParam);

    s_uMsg = uMsg;
    s_wParam = wParam;
    s_lParam = lParam;

#ifdef FEAT_BEVAL
    TrackUserActivity(uMsg);
#endif

    switch (uMsg)
    {
        HANDLE_MSG(hwnd, WM_LBUTTONDBLCLK,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_LBUTTONDOWN,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_LBUTTONUP,  _OnMouseMoveOrRelease);
        HANDLE_MSG(hwnd, WM_MBUTTONDBLCLK,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_MBUTTONDOWN,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_MBUTTONUP,  _OnMouseMoveOrRelease);
        HANDLE_MSG(hwnd, WM_MOUSEMOVE,  _OnMouseMoveOrRelease);
        HANDLE_MSG(hwnd, WM_PAINT,      _OnPaint);
        HANDLE_MSG(hwnd, WM_RBUTTONDBLCLK,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_RBUTTONDOWN,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_RBUTTONUP,  _OnMouseMoveOrRelease);
#ifndef WIN16 /*<VN>*/
        HANDLE_MSG(hwnd, WM_XBUTTONDBLCLK,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_XBUTTONDOWN,_OnMouseButtonDown);
        HANDLE_MSG(hwnd, WM_XBUTTONUP,  _OnMouseMoveOrRelease);
#endif

#ifdef FEAT_BEVAL
        case WM_NOTIFY: Handle_WM_Notify(hwnd, (LPNMHDR)lParam);
            return TRUE;
#endif

    default:
        return MyWindowProc(hwnd, uMsg, wParam, lParam);
    }
}

#if (defined(WIN3264) && defined(FEAT_MBYTE)) \
        || defined(GLOBAL_IME) \
        || defined(PROTO)
# ifdef PROTO
typedef int WINAPI;
# endif

    LRESULT WINAPI
vim_WindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
# ifdef GLOBAL_IME
    return global_ime_DefWindowProc(hwnd, message, wParam, lParam);
# else
    if (wide_WindowProc)
        return DefWindowProcW(hwnd, message, wParam, lParam);
    return DefWindowProc(hwnd, message, wParam, lParam);
#endif
}
#endif

/*
 * Called when the foreground or background color has been changed.
 */
    void
gui_mch_new_colors(void)
{
    /* nothing to do? */
}

/*
 * Set the colors to their default values.
 */
    void
gui_mch_def_colors()
{
    gui.norm_pixel = GetSysColor(COLOR_WINDOWTEXT);
    gui.back_pixel = GetSysColor(COLOR_WINDOW);
    gui.def_norm_pixel = gui.norm_pixel;
    gui.def_back_pixel = gui.back_pixel;
}

/*
 * Open the GUI window which was created by a call to gui_mch_init().
 */
    int
gui_mch_open(void)
{
#ifndef SW_SHOWDEFAULT
# define SW_SHOWDEFAULT 10      /* Borland 5.0 doesn't have it */
#endif
    /* Actually open the window, if not already visible
     * (may be done already in gui_mch_set_shellsize) */
    if (!IsWindowVisible(s_hwnd))
        ShowWindow(s_hwnd, SW_SHOWDEFAULT);

#ifdef MSWIN_FIND_REPLACE
    /* Init replace string here, so that we keep it when re-opening the
     * dialog. */
    s_findrep_struct.lpstrReplaceWith[0] = NUL;
#endif

    return OK;
}

/*
 * Get the position of the top left corner of the window.
 */
    int
gui_mch_get_winpos(int *x, int *y)
{
    RECT    rect;

    GetWindowRect(s_hwnd, &rect);
    *x = rect.left;
    *y = rect.top;
    return OK;
}

/*
 * Set the position of the top left corner of the window to the given
 * coordinates.
 */
    void
gui_mch_set_winpos(int x, int y)
{
    SetWindowPos(s_hwnd, NULL, x, y, 0, 0,
                 SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
}
    void
gui_mch_set_text_area_pos(int x, int y, int w, int h)
{
    static int oldx = 0;
    static int oldy = 0;

    SetWindowPos(s_textArea, NULL, x, y, w, h, SWP_NOZORDER | SWP_NOACTIVATE);

#ifdef FEAT_TOOLBAR
    if (vim_strchr(p_go, GO_TOOLBAR) != NULL)
        SendMessage(s_toolbarhwnd, WM_SIZE,
              (WPARAM)0, (LPARAM)(w + ((long)(TOOLBAR_BUTTON_HEIGHT+8)<<16)));
#endif
#if defined(FEAT_GUI_TABLINE)
    if (showing_tabline)
    {
        int     top = 0;
        RECT    rect;

# ifdef FEAT_TOOLBAR
        if (vim_strchr(p_go, GO_TOOLBAR) != NULL)
            top = TOOLBAR_BUTTON_HEIGHT + TOOLBAR_BORDER_HEIGHT;
# endif
        GetClientRect(s_hwnd, &rect);
        MoveWindow(s_tabhwnd, 0, top, rect.right, gui.tabline_height, TRUE);
    }
#endif

    /* When side scroll bar is unshown, the size of window will change.
     * then, the text area move left or right. thus client rect should be
     * forcely redraw. (Yasuhiro Matsumoto) */
    if (oldx != x || oldy != y)
    {
        InvalidateRect(s_hwnd, NULL, FALSE);
        oldx = x;
        oldy = y;
    }
}


/*
 * Scrollbar stuff:
 */

    void
gui_mch_enable_scrollbar(
    scrollbar_T     *sb,
    int             flag)
{
    ShowScrollBar(sb->id, SB_CTL, flag);

    /* TODO: When the window is maximized, the size of the window stays the
     * same, thus the size of the text area changes.  On Win98 it's OK, on Win
     * NT 4.0 it's not... */
}

    void
gui_mch_set_scrollbar_pos(
    scrollbar_T *sb,
    int         x,
    int         y,
    int         w,
    int         h)
{
    SetWindowPos(sb->id, NULL, x, y, w, h,
                              SWP_NOZORDER | SWP_NOACTIVATE | SWP_SHOWWINDOW);
}

    void
gui_mch_create_scrollbar(
    scrollbar_T *sb,
    int         orient) /* SBAR_VERT or SBAR_HORIZ */
{
    sb->id = CreateWindow(
        "SCROLLBAR", "Scrollbar",
        WS_CHILD | ((orient == SBAR_VERT) ? SBS_VERT : SBS_HORZ), 0, 0,
        10,                             /* Any value will do for now */
        10,                             /* Any value will do for now */
        s_hwnd, NULL,
        s_hinst, NULL);
}

/*
 * Find the scrollbar with the given hwnd.
 */
         static scrollbar_T *
gui_mswin_find_scrollbar(HWND hwnd)
{
    win_T       *wp;

    if (gui.bottom_sbar.id == hwnd)
        return &gui.bottom_sbar;
    FOR_ALL_WINDOWS(wp)
    {
        if (wp->w_scrollbars[SBAR_LEFT].id == hwnd)
            return &wp->w_scrollbars[SBAR_LEFT];
        if (wp->w_scrollbars[SBAR_RIGHT].id == hwnd)
            return &wp->w_scrollbars[SBAR_RIGHT];
    }
    return NULL;
}

/*
 * Get the character size of a font.
 */
    static void
GetFontSize(GuiFont font)
{
    HWND    hwnd = GetDesktopWindow();
    HDC     hdc = GetWindowDC(hwnd);
    HFONT   hfntOld = SelectFont(hdc, (HFONT)font);
    TEXTMETRIC tm;

    GetTextMetrics(hdc, &tm);
    gui.char_width = tm.tmAveCharWidth + tm.tmOverhang;

    gui.char_height = tm.tmHeight
#ifndef MSWIN16_FASTTEXT
                                + p_linespace
#endif
                                ;

    SelectFont(hdc, hfntOld);

    ReleaseDC(hwnd, hdc);
}

/*
 * Adjust gui.char_height (after 'linespace' was changed).
 */
    int
gui_mch_adjust_charheight(void)
{
    GetFontSize(gui.norm_font);
    return OK;
}

    static GuiFont
get_font_handle(LOGFONT *lf)
{
    HFONT   font = NULL;

    /* Load the font */
    font = CreateFontIndirect(lf);

    if (font == NULL)
        return NOFONT;

    return (GuiFont)font;
}

    static int
pixels_to_points(int pixels, int vertical)
{
    int         points;
    HWND        hwnd;
    HDC         hdc;

    hwnd = GetDesktopWindow();
    hdc = GetWindowDC(hwnd);

    points = MulDiv(pixels, 72,
                    GetDeviceCaps(hdc, vertical ? LOGPIXELSY : LOGPIXELSX));

    ReleaseDC(hwnd, hdc);

    return points;
}

    GuiFont
gui_mch_get_font(
    char_u      *name,
    int         giveErrorIfMissing)
{
    LOGFONT     lf;
    GuiFont     font = NOFONT;

    if (get_logfont(&lf, name, NULL, giveErrorIfMissing) == OK)
        font = get_font_handle(&lf);
    if (font == NOFONT && giveErrorIfMissing)
        EMSG2(_(e_font), name);
    return font;
}

#if defined(FEAT_EVAL) || defined(PROTO)
/*
 * Return the name of font "font" in allocated memory.
 * Don't know how to get the actual name, thus use the provided name.
 */
/*ARGSUSED*/
    char_u *
gui_mch_get_fontname(font, name)
    GuiFont font;
    char_u  *name;
{
    if (name == NULL)
        return NULL;
    return vim_strsave(name);
}
#endif

    void
gui_mch_free_font(GuiFont font)
{
    if (font)
        DeleteObject((HFONT)font);
}

    static int
hex_digit(int c)
{
    if (VIM_ISDIGIT(c))
        return c - '0';
    c = TOLOWER_ASC(c);
    if (c >= 'a' && c <= 'f')
        return c - 'a' + 10;
    return -1000;
}
/*
 * Return the Pixel value (color) for the given color name.
 * Return INVALCOLOR for error.
 */
    guicolor_T
gui_mch_get_color(char_u *name)
{
    typedef struct guicolor_tTable
    {
        char        *name;
        COLORREF    color;
    } guicolor_tTable;

    static guicolor_tTable table[] =
    {
        {"Black",               RGB(0x00, 0x00, 0x00)},
        {"DarkGray",            RGB(0x80, 0x80, 0x80)},
        {"DarkGrey",            RGB(0x80, 0x80, 0x80)},
        {"Gray",                RGB(0xC0, 0xC0, 0xC0)},
        {"Grey",                RGB(0xC0, 0xC0, 0xC0)},
        {"LightGray",           RGB(0xE0, 0xE0, 0xE0)},
        {"LightGrey",           RGB(0xE0, 0xE0, 0xE0)},
        {"Gray10",              RGB(0x1A, 0x1A, 0x1A)},
        {"Grey10",              RGB(0x1A, 0x1A, 0x1A)},
        {"Gray20",              RGB(0x33, 0x33, 0x33)},
        {"Grey20",              RGB(0x33, 0x33, 0x33)},
        {"Gray30",              RGB(0x4D, 0x4D, 0x4D)},
        {"Grey30",              RGB(0x4D, 0x4D, 0x4D)},
        {"Gray40",              RGB(0x66, 0x66, 0x66)},
        {"Grey40",              RGB(0x66, 0x66, 0x66)},
        {"Gray50",              RGB(0x7F, 0x7F, 0x7F)},
        {"Grey50",              RGB(0x7F, 0x7F, 0x7F)},
        {"Gray60",              RGB(0x99, 0x99, 0x99)},
        {"Grey60",              RGB(0x99, 0x99, 0x99)},
        {"Gray70",              RGB(0xB3, 0xB3, 0xB3)},
        {"Grey70",              RGB(0xB3, 0xB3, 0xB3)},
        {"Gray80",              RGB(0xCC, 0xCC, 0xCC)},
        {"Grey80",              RGB(0xCC, 0xCC, 0xCC)},
        {"Gray90",              RGB(0xE5, 0xE5, 0xE5)},
        {"Grey90",              RGB(0xE5, 0xE5, 0xE5)},
        {"White",               RGB(0xFF, 0xFF, 0xFF)},
        {"DarkRed",             RGB(0x80, 0x00, 0x00)},
        {"Red",                 RGB(0xFF, 0x00, 0x00)},
        {"LightRed",            RGB(0xFF, 0xA0, 0xA0)},
        {"DarkBlue",            RGB(0x00, 0x00, 0x80)},
        {"Blue",                RGB(0x00, 0x00, 0xFF)},
        {"LightBlue",           RGB(0xA0, 0xA0, 0xFF)},
        {"DarkGreen",           RGB(0x00, 0x80, 0x00)},
        {"Green",               RGB(0x00, 0xFF, 0x00)},
        {"LightGreen",          RGB(0xA0, 0xFF, 0xA0)},
        {"DarkCyan",            RGB(0x00, 0x80, 0x80)},
        {"Cyan",                RGB(0x00, 0xFF, 0xFF)},
        {"LightCyan",           RGB(0xA0, 0xFF, 0xFF)},
        {"DarkMagenta",         RGB(0x80, 0x00, 0x80)},
        {"Magenta",             RGB(0xFF, 0x00, 0xFF)},
        {"LightMagenta",        RGB(0xFF, 0xA0, 0xFF)},
        {"Brown",               RGB(0x80, 0x40, 0x40)},
        {"Yellow",              RGB(0xFF, 0xFF, 0x00)},
        {"LightYellow",         RGB(0xFF, 0xFF, 0xA0)},
        {"DarkYellow",          RGB(0xBB, 0xBB, 0x00)},
        {"SeaGreen",            RGB(0x2E, 0x8B, 0x57)},
        {"Orange",              RGB(0xFF, 0xA5, 0x00)},
        {"Purple",              RGB(0xA0, 0x20, 0xF0)},
        {"SlateBlue",           RGB(0x6A, 0x5A, 0xCD)},
        {"Violet",              RGB(0xEE, 0x82, 0xEE)},
    };

    typedef struct SysColorTable
    {
        char        *name;
        int         color;
    } SysColorTable;

    static SysColorTable sys_table[] =
    {
#ifdef WIN3264
        {"SYS_3DDKSHADOW", COLOR_3DDKSHADOW},
        {"SYS_3DHILIGHT", COLOR_3DHILIGHT},
#ifndef __MINGW32__
        {"SYS_3DHIGHLIGHT", COLOR_3DHIGHLIGHT},
#endif
        {"SYS_BTNHILIGHT", COLOR_BTNHILIGHT},
        {"SYS_BTNHIGHLIGHT", COLOR_BTNHIGHLIGHT},
        {"SYS_3DLIGHT", COLOR_3DLIGHT},
        {"SYS_3DSHADOW", COLOR_3DSHADOW},
        {"SYS_DESKTOP", COLOR_DESKTOP},
        {"SYS_INFOBK", COLOR_INFOBK},
        {"SYS_INFOTEXT", COLOR_INFOTEXT},
        {"SYS_3DFACE", COLOR_3DFACE},
#endif
        {"SYS_BTNFACE", COLOR_BTNFACE},
        {"SYS_BTNSHADOW", COLOR_BTNSHADOW},
        {"SYS_ACTIVEBORDER", COLOR_ACTIVEBORDER},
        {"SYS_ACTIVECAPTION", COLOR_ACTIVECAPTION},
        {"SYS_APPWORKSPACE", COLOR_APPWORKSPACE},
        {"SYS_BACKGROUND", COLOR_BACKGROUND},
        {"SYS_BTNTEXT", COLOR_BTNTEXT},
        {"SYS_CAPTIONTEXT", COLOR_CAPTIONTEXT},
        {"SYS_GRAYTEXT", COLOR_GRAYTEXT},
        {"SYS_HIGHLIGHT", COLOR_HIGHLIGHT},
        {"SYS_HIGHLIGHTTEXT", COLOR_HIGHLIGHTTEXT},
        {"SYS_INACTIVEBORDER", COLOR_INACTIVEBORDER},
        {"SYS_INACTIVECAPTION", COLOR_INACTIVECAPTION},
        {"SYS_INACTIVECAPTIONTEXT", COLOR_INACTIVECAPTIONTEXT},
        {"SYS_MENU", COLOR_MENU},
        {"SYS_MENUTEXT", COLOR_MENUTEXT},
        {"SYS_SCROLLBAR", COLOR_SCROLLBAR},
        {"SYS_WINDOW", COLOR_WINDOW},
        {"SYS_WINDOWFRAME", COLOR_WINDOWFRAME},
        {"SYS_WINDOWTEXT", COLOR_WINDOWTEXT}
    };

    int             r, g, b;
    int             i;

    if (name[0] == '#' && strlen(name) == 7)
    {
        /* Name is in "#rrggbb" format */
        r = hex_digit(name[1]) * 16 + hex_digit(name[2]);
        g = hex_digit(name[3]) * 16 + hex_digit(name[4]);
        b = hex_digit(name[5]) * 16 + hex_digit(name[6]);
        if (r < 0 || g < 0 || b < 0)
            return INVALCOLOR;
        return RGB(r, g, b);
    }
    else
    {
        /* Check if the name is one of the colors we know */
        for (i = 0; i < sizeof(table) / sizeof(table[0]); i++)
            if (STRICMP(name, table[i].name) == 0)
                return table[i].color;
    }

    /*
     * Try to look up a system colour.
     */
    for (i = 0; i < sizeof(sys_table) / sizeof(sys_table[0]); i++)
        if (STRICMP(name, sys_table[i].name) == 0)
            return GetSysColor(sys_table[i].color);

    /*
     * Last attempt. Look in the file "$VIMRUNTIME/rgb.txt".
     */
    {
#define LINE_LEN 100
        FILE    *fd;
        char    line[LINE_LEN];
        char_u  *fname;

        fname = expand_env_save((char_u *)"$VIMRUNTIME/rgb.txt");
        if (fname == NULL)
            return INVALCOLOR;

        fd = mch_fopen((char *)fname, "rt");
        vim_free(fname);
        if (fd == NULL)
            return INVALCOLOR;

        while (!feof(fd))
        {
            int     len;
            int     pos;
            char    *color;

            fgets(line, LINE_LEN, fd);
            len = (int)STRLEN(line);

            if (len <= 1 || line[len-1] != '\n')
                continue;

            line[len-1] = '\0';

            i = sscanf(line, "%d %d %d %n", &r, &g, &b, &pos);
            if (i != 3)
                continue;

            color = line + pos;

            if (STRICMP(color, name) == 0)
            {
                fclose(fd);
                return (guicolor_T) RGB(r, g, b);
            }
        }

        fclose(fd);
    }

    return INVALCOLOR;
}
/*
 * Return OK if the key with the termcap name "name" is supported.
 */
    int
gui_mch_haskey(char_u *name)
{
    int i;

    for (i = 0; special_keys[i].vim_code1 != NUL; i++)
        if (name[0] == special_keys[i].vim_code0 &&
                                         name[1] == special_keys[i].vim_code1)
            return OK;
    return FAIL;
}

    void
gui_mch_beep(void)
{
    MessageBeep(MB_OK);
}
/*
 * Invert a rectangle from row r, column c, for nr rows and nc columns.
 */
    void
gui_mch_invert_rectangle(
    int     r,
    int     c,
    int     nr,
    int     nc)
{
    RECT    rc;

    /*
     * Note: InvertRect() excludes right and bottom of rectangle.
     */
    rc.left = FILL_X(c);
    rc.top = FILL_Y(r);
    rc.right = rc.left + nc * gui.char_width;
    rc.bottom = rc.top + nr * gui.char_height;
    InvertRect(s_hdc, &rc);
}

/*
 * Iconify the GUI window.
 */
    void
gui_mch_iconify(void)
{
    ShowWindow(s_hwnd, SW_MINIMIZE);
}

/*
 * Draw a cursor without focus.
 */
    void
gui_mch_draw_hollow_cursor(guicolor_T color)
{
    HBRUSH  hbr;
    RECT    rc;

    /*
     * Note: FrameRect() excludes right and bottom of rectangle.
     */
    rc.left = FILL_X(gui.col);
    rc.top = FILL_Y(gui.row);
    rc.right = rc.left + gui.char_width;
#ifdef FEAT_MBYTE
    if (mb_lefthalve(gui.row, gui.col))
        rc.right += gui.char_width;
#endif
    rc.bottom = rc.top + gui.char_height;
    hbr = CreateSolidBrush(color);
    FrameRect(s_hdc, &rc, hbr);
    DeleteBrush(hbr);
}
/*
 * Draw part of a cursor, "w" pixels wide, and "h" pixels high, using
 * color "color".
 */
    void
gui_mch_draw_part_cursor(
    int         w,
    int         h,
    guicolor_T  color)
{
    HBRUSH      hbr;
    RECT        rc;

    /*
     * Note: FillRect() excludes right and bottom of rectangle.
     */
    rc.left =
#ifdef FEAT_RIGHTLEFT
                /* vertical line should be on the right of current point */
                CURSOR_BAR_RIGHT ? FILL_X(gui.col + 1) - w :
#endif
                    FILL_X(gui.col);
    rc.top = FILL_Y(gui.row) + gui.char_height - h;
    rc.right = rc.left + w;
    rc.bottom = rc.top + h;
    hbr = CreateSolidBrush(color);
    FillRect(s_hdc, &rc, hbr);
    DeleteBrush(hbr);
}

/*
 * Process a single Windows message.
 * If one is not available we hang until one is.
 */
    static void
process_message(void)
{
    MSG         msg;
    UINT        vk = 0;         /* Virtual key */
    char_u      string[40];
    int         i;
    int         modifiers = 0;
    int         key;
#ifdef FEAT_MENU
    static char_u k10[] = {K_SPECIAL, 'k', ';', 0};
#endif

    GetMessage(&msg, NULL, 0, 0);

#ifdef FEAT_OLE
    /* Look after OLE Automation commands */
    if (msg.message == WM_OLE)
    {
        char_u *str = (char_u *)msg.lParam;
        add_to_input_buf(str, (int)STRLEN(str));
        vim_free(str);
        return;
    }
#endif

#ifdef FEAT_NETBEANS_INTG
    if (msg.message == WM_NETBEANS)
    {
        messageFromNetbeansW32();
        return;
    }
#endif

#ifdef FEAT_SNIFF
    if (sniff_request_waiting && want_sniff_request)
    {
        static char_u bytes[3] = {CSI, (char_u)KS_EXTRA, (char_u)KE_SNIFF};
        add_to_input_buf(bytes, 3); /* K_SNIFF */
        sniff_request_waiting = 0;
        want_sniff_request = 0;
        /* request is handled in normal.c */
    }
    if (msg.message == WM_USER)
    {
        MyTranslateMessage(&msg);
        DispatchMessage(&msg);
        return;
    }
#endif

#ifdef MSWIN_FIND_REPLACE
    /* Don't process messages used by the dialog */
    if (s_findrep_hwnd != NULL && IsDialogMessage(s_findrep_hwnd, &msg))
    {
        HandleMouseHide(msg.message, msg.lParam);
        return;
    }
#endif

    /*
     * Check if it's a special key that we recognise.  If not, call
     * TranslateMessage().
     */
    if (msg.message == WM_KEYDOWN || msg.message == WM_SYSKEYDOWN)
    {
        vk = (int) msg.wParam;
        /* handle key after dead key, but ignore shift, alt and control */
        if (dead_key && vk != VK_SHIFT && vk != VK_MENU && vk != VK_CONTROL)
        {
            dead_key = 0;
            /* handle non-alphabetic keys (ones that hopefully cannot generate
             * umlaut-characters), unless when control is down */
            if (vk < 'A' || vk > 'Z' || (GetKeyState(VK_CONTROL) & 0x8000))
            {
                MSG dm;

                dm.message = msg.message;
                dm.hwnd = msg.hwnd;
                dm.wParam = VK_SPACE;
                MyTranslateMessage(&dm);        /* generate dead character */
                if (vk != VK_SPACE) /* and send current character once more */
                    PostMessage(msg.hwnd, msg.message, msg.wParam, msg.lParam);
                return;
            }
        }

        /* Check for CTRL-BREAK */
        if (vk == VK_CANCEL)
        {
            trash_input_buf();
            got_int = TRUE;
            string[0] = Ctrl_C;
            add_to_input_buf(string, 1);
        }

        for (i = 0; special_keys[i].key_sym != 0; i++)
        {
            /* ignore VK_SPACE when ALT key pressed: system menu */
            if (special_keys[i].key_sym == vk
                    && (vk != VK_SPACE || !(GetKeyState(VK_MENU) & 0x8000)))
            {
#ifdef FEAT_MENU
                /* Check for <F10>: Windows selects the menu.  When <F10> is
                 * mapped we want to use the mapping instead. */
                if (vk == VK_F10
                        && gui.menu_is_active
                        && check_map(k10, State, FALSE, TRUE, FALSE) == NULL)
                    break;
#endif
                if (GetKeyState(VK_SHIFT) & 0x8000)
                    modifiers |= MOD_MASK_SHIFT;
                /*
                 * Don't use caps-lock as shift, because these are special keys
                 * being considered here, and we only want letters to get
                 * shifted -- webb
                 */
                /*
                if (GetKeyState(VK_CAPITAL) & 0x0001)
                    modifiers ^= MOD_MASK_SHIFT;
                */
                if (GetKeyState(VK_CONTROL) & 0x8000)
                    modifiers |= MOD_MASK_CTRL;
                if (GetKeyState(VK_MENU) & 0x8000)
                    modifiers |= MOD_MASK_ALT;

                if (special_keys[i].vim_code1 == NUL)
                    key = special_keys[i].vim_code0;
                else
                    key = TO_SPECIAL(special_keys[i].vim_code0,
                                                   special_keys[i].vim_code1);
                key = simplify_key(key, &modifiers);
                if (key == CSI)
                    key = K_CSI;

                if (modifiers)
                {
                    string[0] = CSI;
                    string[1] = KS_MODIFIER;
                    string[2] = modifiers;
                    add_to_input_buf(string, 3);
                }

                if (IS_SPECIAL(key))
                {
                    string[0] = CSI;
                    string[1] = K_SECOND(key);
                    string[2] = K_THIRD(key);
                    add_to_input_buf(string, 3);
                }
                else
                {
                    int len;

                    /* Handle "key" as a Unicode character. */
                    len = char_to_string(key, string, 40);
                    add_to_input_buf(string, len);
                }
                break;
            }
        }
        if (special_keys[i].key_sym == 0)
        {
            /* Some keys need C-S- where they should only need C-.
             * Ignore 0xff, Windows XP sends it when NUMLOCK has changed since
             * system startup (Helmut Stiegler, 2003 Oct 3). */
            if (vk != 0xff
                    && (GetKeyState(VK_CONTROL) & 0x8000)
                    && !(GetKeyState(VK_SHIFT) & 0x8000)
                    && !(GetKeyState(VK_MENU) & 0x8000))
            {
                /* CTRL-6 is '^'; Japanese keyboard maps '^' to vk == 0xDE */
                if (vk == '6' || MapVirtualKey(vk, 2) == (UINT)'^')
                {
                    string[0] = Ctrl_HAT;
                    add_to_input_buf(string, 1);
                }
                /* vk == 0xBD AZERTY for CTRL-'-', but CTRL-[ for * QWERTY! */
                else if (vk == 0xBD)    /* QWERTY for CTRL-'-' */
                {
                    string[0] = Ctrl__;
                    add_to_input_buf(string, 1);
                }
                /* CTRL-2 is '@'; Japanese keyboard maps '@' to vk == 0xC0 */
                else if (vk == '2' || MapVirtualKey(vk, 2) == (UINT)'@')
                {
                    string[0] = Ctrl_AT;
                    add_to_input_buf(string, 1);
                }
                else
                    MyTranslateMessage(&msg);
            }
            else
                MyTranslateMessage(&msg);
        }
    }
#ifdef FEAT_MBYTE_IME
    else if (msg.message == WM_IME_NOTIFY)
        _OnImeNotify(msg.hwnd, (DWORD)msg.wParam, (DWORD)msg.lParam);
    else if (msg.message == WM_KEYUP && im_get_status())
        /* added for non-MS IME (Yasuhiro Matsumoto) */
        MyTranslateMessage(&msg);
#endif
#if !defined(FEAT_MBYTE_IME) && defined(GLOBAL_IME)
/* GIME_TEST */
    else if (msg.message == WM_IME_STARTCOMPOSITION)
    {
        POINT point;

        global_ime_set_font(&norm_logfont);
        point.x = FILL_X(gui.col);
        point.y = FILL_Y(gui.row);
        MapWindowPoints(s_textArea, s_hwnd, &point, 1);
        global_ime_set_position(&point);
    }
#endif

#ifdef FEAT_MENU
    /* Check for <F10>: Default effect is to select the menu.  When <F10> is
     * mapped we need to stop it here to avoid strange effects (e.g., for the
     * key-up event) */
    if (vk != VK_F10 || check_map(k10, State, FALSE, TRUE, FALSE) == NULL)
#endif
        DispatchMessage(&msg);
}

/*
 * Catch up with any queued events.  This may put keyboard input into the
 * input buffer, call resize call-backs, trigger timers etc.  If there is
 * nothing in the event queue (& no timers pending), then we return
 * immediately.
 */
    void
gui_mch_update(void)
{
    MSG     msg;

    if (!s_busy_processing)
        while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)
                                                  && !vim_is_input_buf_full())
            process_message();
}

/*
 * GUI input routine called by gui_wait_for_chars().  Waits for a character
 * from the keyboard.
 *  wtime == -1     Wait forever.
 *  wtime == 0      This should never happen.
 *  wtime > 0       Wait wtime milliseconds for a character.
 * Returns OK if a character was found to be available within the given time,
 * or FAIL otherwise.
 */
    int
gui_mch_wait_for_chars(int wtime)
{
    MSG         msg;
    int         focus;

    s_timed_out = FALSE;

    if (wtime > 0)
    {
        /* Don't do anything while processing a (scroll) message. */
        if (s_busy_processing)
            return FAIL;
        s_wait_timer = (UINT)SetTimer(NULL, 0, (UINT)wtime,
                                                         (TIMERPROC)_OnTimer);
    }

    allow_scrollbar = TRUE;

    focus = gui.in_focus;
    while (!s_timed_out)
    {
        /* Stop or start blinking when focus changes */
        if (gui.in_focus != focus)
        {
            if (gui.in_focus)
                gui_mch_start_blink();
            else
                gui_mch_stop_blink();
            focus = gui.in_focus;
        }

        if (s_need_activate)
        {
#ifdef WIN32
            (void)SetForegroundWindow(s_hwnd);
#else
            (void)SetActiveWindow(s_hwnd);
#endif
            s_need_activate = FALSE;
        }

        /*
         * Don't use gui_mch_update() because then we will spin-lock until a
         * char arrives, instead we use GetMessage() to hang until an
         * event arrives.  No need to check for input_buf_full because we are
         * returning as soon as it contains a single char -- webb
         */
        process_message();

        if (input_available())
        {
            if (s_wait_timer != 0 && !s_timed_out)
            {
                KillTimer(NULL, s_wait_timer);

                /* Eat spurious WM_TIMER messages */
                while (PeekMessage(&msg, s_hwnd, WM_TIMER, WM_TIMER, PM_REMOVE))
                    ;
                s_wait_timer = 0;
            }
            allow_scrollbar = FALSE;

            /* Clear pending mouse button, the release event may have been
             * taken by the dialog window. */
            s_button_pending = -1;

            return OK;
        }
    }
    allow_scrollbar = FALSE;
    return FAIL;
}

/*
 * Clear a rectangular region of the screen from text pos (row1, col1) to
 * (row2, col2) inclusive.
 */
    void
gui_mch_clear_block(
    int         row1,
    int         col1,
    int         row2,
    int         col2)
{
    RECT        rc;

    /*
     * Clear one extra pixel at the far right, for when bold characters have
     * spilled over to the window border.
     * Note: FillRect() excludes right and bottom of rectangle.
     */
    rc.left = FILL_X(col1);
    rc.top = FILL_Y(row1);
    rc.right = FILL_X(col2 + 1) + (col2 == Columns - 1);
    rc.bottom = FILL_Y(row2 + 1);
    clear_rect(&rc);
}

/*
 * Clear the whole text window.
 */
    void
gui_mch_clear_all(void)
{
    RECT    rc;

    rc.left = 0;
    rc.top = 0;
    rc.right = Columns * gui.char_width + 2 * gui.border_width;
    rc.bottom = Rows * gui.char_height + 2 * gui.border_width;
    clear_rect(&rc);
}
/*
 * Menu stuff.
 */

    void
gui_mch_enable_menu(int flag)
{
#ifdef FEAT_MENU
    SetMenu(s_hwnd, flag ? s_menuBar : NULL);
#endif
}

/*ARGSUSED*/
    void
gui_mch_set_menu_pos(
    int     x,
    int     y,
    int     w,
    int     h)
{
    /* It will be in the right place anyway */
}

#if defined(FEAT_MENU) || defined(PROTO)
/*
 * Make menu item hidden or not hidden
 */
    void
gui_mch_menu_hidden(
    vimmenu_T   *menu,
    int         hidden)
{
    /*
     * This doesn't do what we want.  Hmm, just grey the menu items for now.
     */
    /*
    if (hidden)
        EnableMenuItem(s_menuBar, menu->id, MF_BYCOMMAND | MF_DISABLED);
    else
        EnableMenuItem(s_menuBar, menu->id, MF_BYCOMMAND | MF_ENABLED);
    */
    gui_mch_menu_grey(menu, hidden);
}

/*
 * This is called after setting all the menus to grey/hidden or not.
 */
    void
gui_mch_draw_menubar(void)
{
    DrawMenuBar(s_hwnd);
}
#endif /*FEAT_MENU*/

#ifndef PROTO
void
#ifdef VIMDLL
_export
#endif
_cdecl
SaveInst(HINSTANCE hInst)
{
    s_hinst = hInst;
}
#endif

/*
 * Return the RGB value of a pixel as a long.
 */
    long_u
gui_mch_get_rgb(guicolor_T pixel)
{
    return (GetRValue(pixel) << 16) + (GetGValue(pixel) << 8)
                                                           + GetBValue(pixel);
}

#if defined(FEAT_GUI_DIALOG) || defined(PROTO)
/* Convert pixels in X to dialog units */
    static WORD
PixelToDialogX(int numPixels)
{
    return (WORD)((numPixels * 4) / s_dlgfntwidth);
}

/* Convert pixels in Y to dialog units */
    static WORD
PixelToDialogY(int numPixels)
{
    return (WORD)((numPixels * 8) / s_dlgfntheight);
}

/* Return the width in pixels of the given text in the given DC. */
    static int
GetTextWidth(HDC hdc, char_u *str, int len)
{
    SIZE    size;

    GetTextExtentPoint(hdc, str, len, &size);
    return size.cx;
}

#ifdef FEAT_MBYTE
/*
 * Return the width in pixels of the given text in the given DC, taking care
 * of 'encoding' to active codepage conversion.
 */
    static int
GetTextWidthEnc(HDC hdc, char_u *str, int len)
{
    SIZE        size;
    WCHAR       *wstr;
    int         n;
    int         wlen = len;

    if (enc_codepage >= 0 && (int)GetACP() != enc_codepage)
    {
        /* 'encoding' differs from active codepage: convert text and use wide
         * function */
        wstr = enc_to_ucs2(str, &wlen);
        if (wstr != NULL)
        {
            n = GetTextExtentPointW(hdc, wstr, wlen, &size);
            vim_free(wstr);
            if (n)
                return size.cx;
        }
    }

    return GetTextWidth(hdc, str, len);
}
#else
# define GetTextWidthEnc(h, s, l) GetTextWidth((h), (s), (l))
#endif

/*
 * A quick little routine that will center one window over another, handy for
 * dialog boxes.  Taken from the Win32SDK samples.
 */
    static BOOL
CenterWindow(
    HWND hwndChild,
    HWND hwndParent)
{
    RECT    rChild, rParent;
    int     wChild, hChild, wParent, hParent;
    int     wScreen, hScreen, xNew, yNew;
    HDC     hdc;

    GetWindowRect(hwndChild, &rChild);
    wChild = rChild.right - rChild.left;
    hChild = rChild.bottom - rChild.top;

    /* If Vim is minimized put the window in the middle of the screen. */
    if (hwndParent == NULL || IsMinimized(hwndParent))
    {
#ifdef WIN16
        rParent.left = 0;
        rParent.top = 0;
        rParent.right = GetSystemMetrics(SM_CXSCREEN);
        rParent.bottom = GetSystemMetrics(SM_CYFULLSCREEN);
#else
        SystemParametersInfo(SPI_GETWORKAREA, 0, &rParent, 0);
#endif
    }
    else
        GetWindowRect(hwndParent, &rParent);
    wParent = rParent.right - rParent.left;
    hParent = rParent.bottom - rParent.top;

    hdc = GetDC(hwndChild);
    wScreen = GetDeviceCaps (hdc, HORZRES);
    hScreen = GetDeviceCaps (hdc, VERTRES);
    ReleaseDC(hwndChild, hdc);

    xNew = rParent.left + ((wParent - wChild) /2);
    if (xNew < 0)
    {
        xNew = 0;
    }
    else if ((xNew+wChild) > wScreen)
    {
        xNew = wScreen - wChild;
    }

    yNew = rParent.top  + ((hParent - hChild) /2);
    if (yNew < 0)
        yNew = 0;
    else if ((yNew+hChild) > hScreen)
        yNew = hScreen - hChild;

    return SetWindowPos(hwndChild, NULL, xNew, yNew, 0, 0,
                                                   SWP_NOSIZE | SWP_NOZORDER);
}
#endif /* FEAT_GUI_DIALOG */

void
gui_mch_activate_window(void)
{
    (void)SetActiveWindow(s_hwnd);
}

#if defined(FEAT_TOOLBAR) || defined(PROTO)
    void
gui_mch_show_toolbar(int showit)
{
    if (s_toolbarhwnd == NULL)
        return;

    if (showit)
    {
# ifdef FEAT_MBYTE
#  ifndef TB_SETUNICODEFORMAT
    /* For older compilers.  We assume this never changes. */
#   define TB_SETUNICODEFORMAT 0x2005
#  endif
        /* Enable/disable unicode support */
        int uu = (enc_codepage >= 0 && (int)GetACP() != enc_codepage);
        SendMessage(s_toolbarhwnd, TB_SETUNICODEFORMAT, (WPARAM)uu, (LPARAM)0);
# endif
        ShowWindow(s_toolbarhwnd, SW_SHOW);
    }
    else
        ShowWindow(s_toolbarhwnd, SW_HIDE);
}

/* Then number of bitmaps is fixed.  Exit is missing! */
#define TOOLBAR_BITMAP_COUNT 31

#endif

#if defined(FEAT_GUI_TABLINE) || defined(PROTO)
    static void
add_tabline_popup_menu_entry(HMENU pmenu, UINT item_id, char_u *item_text)
{
#ifdef FEAT_MBYTE
    WCHAR       *wn = NULL;
    int         n;

    if (enc_codepage >= 0 && (int)GetACP() != enc_codepage)
    {
        /* 'encoding' differs from active codepage: convert menu name
         * and use wide function */
        wn = enc_to_ucs2(item_text, NULL);
        if (wn != NULL)
        {
            MENUITEMINFOW       infow;

            infow.cbSize = sizeof(infow);
            infow.fMask = MIIM_TYPE | MIIM_ID;
            infow.wID = item_id;
            infow.fType = MFT_STRING;
            infow.dwTypeData = wn;
            infow.cch = (UINT)wcslen(wn);
            n = InsertMenuItemW(pmenu, item_id, FALSE, &infow);
            vim_free(wn);
            if (n == 0 && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
                /* Failed, try using non-wide function. */
                wn = NULL;
        }
    }

    if (wn == NULL)
#endif
    {
        MENUITEMINFO    info;

        info.cbSize = sizeof(info);
        info.fMask = MIIM_TYPE | MIIM_ID;
        info.wID = item_id;
        info.fType = MFT_STRING;
        info.dwTypeData = item_text;
        info.cch = (UINT)STRLEN(item_text);
        InsertMenuItem(pmenu, item_id, FALSE, &info);
    }
}

    static void
show_tabline_popup_menu(void)
{
    HMENU           tab_pmenu;
    long            rval;
    POINT           pt;

    /* When ignoring events don't show the menu. */
    if (hold_gui_events
# ifdef FEAT_CMDWIN
            || cmdwin_type != 0
# endif
       )
        return;

    tab_pmenu = CreatePopupMenu();
    if (tab_pmenu == NULL)
        return;

    add_tabline_popup_menu_entry(tab_pmenu, TABLINE_MENU_CLOSE, _("Close tab"));
    add_tabline_popup_menu_entry(tab_pmenu, TABLINE_MENU_NEW, _("New tab"));
    add_tabline_popup_menu_entry(tab_pmenu, TABLINE_MENU_OPEN,
                                 _("Open tab..."));

    GetCursorPos(&pt);
    rval = TrackPopupMenuEx(tab_pmenu, TPM_RETURNCMD, pt.x, pt.y, s_tabhwnd,
                                                                        NULL);

    DestroyMenu(tab_pmenu);

    /* Add the string cmd into input buffer */
    if (rval > 0)
    {
        TCHITTESTINFO htinfo;
        int idx;

        if (ScreenToClient(s_tabhwnd, &pt) == 0)
            return;

        htinfo.pt.x = pt.x;
        htinfo.pt.y = pt.y;
        idx = TabCtrl_HitTest(s_tabhwnd, &htinfo);
        if (idx == -1)
            idx = 0;
        else
            idx += 1;

        send_tabline_menu_event(idx, (int)rval);
    }
}

/*
 * Show or hide the tabline.
 */
    void
gui_mch_show_tabline(int showit)
{
    if (s_tabhwnd == NULL)
        return;

    if (!showit != !showing_tabline)
    {
        if (showit)
            ShowWindow(s_tabhwnd, SW_SHOW);
        else
            ShowWindow(s_tabhwnd, SW_HIDE);
        showing_tabline = showit;
    }
}

/*
 * Return TRUE when tabline is displayed.
 */
    int
gui_mch_showing_tabline(void)
{
    return s_tabhwnd != NULL && showing_tabline;
}

/*
 * Update the labels of the tabline.
 */
    void
gui_mch_update_tabline(void)
{
    tabpage_T   *tp;
    TCITEM      tie;
    int         nr = 0;
    int         curtabidx = 0;
    RECT        rc;
#ifdef FEAT_MBYTE
    static int  use_unicode = FALSE;
    int         uu;
    WCHAR       *wstr = NULL;
#endif

    if (s_tabhwnd == NULL)
        return;

#if defined(FEAT_MBYTE)
# ifndef CCM_SETUNICODEFORMAT
    /* For older compilers.  We assume this never changes. */
#  define CCM_SETUNICODEFORMAT 0x2005
# endif
    uu = (enc_codepage >= 0 && (int)GetACP() != enc_codepage);
    if (uu != use_unicode)
    {
        /* Enable/disable unicode support */
        SendMessage(s_tabhwnd, CCM_SETUNICODEFORMAT, (WPARAM)uu, (LPARAM)0);
        use_unicode = uu;
    }
#endif

    tie.mask = TCIF_TEXT;
    tie.iImage = -1;

    /* Add a label for each tab page.  They all contain the same text area. */
    for (tp = first_tabpage; tp != NULL; tp = tp->tp_next, ++nr)
    {
        if (tp == curtab)
            curtabidx = nr;

        if (!TabCtrl_GetItemRect(s_tabhwnd, nr, &rc))
        {
            /* Add the tab */
            tie.pszText = "-Empty-";
            TabCtrl_InsertItem(s_tabhwnd, nr, &tie);
        }

        get_tabline_label(tp, FALSE);
        tie.pszText = NameBuff;
#ifdef FEAT_MBYTE
        wstr = NULL;
        if (use_unicode)
        {
            /* Need to go through Unicode. */
            wstr = enc_to_ucs2(NameBuff, NULL);
            if (wstr != NULL)
            {
                TCITEMW         tiw;

                tiw.mask = TCIF_TEXT;
                tiw.iImage = -1;
                tiw.pszText = wstr;
                SendMessage(s_tabhwnd, TCM_SETITEMW, (WPARAM)nr, (LPARAM)&tiw);
                vim_free(wstr);
            }
        }
        if (wstr == NULL)
#endif
        {
            TabCtrl_SetItem(s_tabhwnd, nr, &tie);
        }
    }

    /* Remove any old labels. */
    while (TabCtrl_GetItemRect(s_tabhwnd, nr, &rc))
        TabCtrl_DeleteItem(s_tabhwnd, nr);

    if (TabCtrl_GetCurSel(s_tabhwnd) != curtabidx)
        TabCtrl_SetCurSel(s_tabhwnd, curtabidx);
}

/*
 * Set the current tab to "nr".  First tab is 1.
 */
    void
gui_mch_set_curtab(nr)
    int         nr;
{
    if (s_tabhwnd == NULL)
        return;

    if (TabCtrl_GetCurSel(s_tabhwnd) != nr -1)
        TabCtrl_SetCurSel(s_tabhwnd, nr -1);
}

#endif

/*
 * ":simalt" command.
 */
    void
ex_simalt(exarg_T *eap)
{
    char_u *keys = eap->arg;

    PostMessage(s_hwnd, WM_SYSCOMMAND, (WPARAM)SC_KEYMENU, (LPARAM)0);
    while (*keys)
    {
        if (*keys == '~')
            *keys = ' ';            /* for showing system menu */
        PostMessage(s_hwnd, WM_CHAR, (WPARAM)*keys, (LPARAM)0);
        keys++;
    }
}

/*
 * Create the find & replace dialogs.
 * You can't have both at once: ":find" when replace is showing, destroys
 * the replace dialog first, and the other way around.
 */
#ifdef MSWIN_FIND_REPLACE
    static void
initialise_findrep(char_u *initial_string)
{
    int         wword = FALSE;
    int         mcase = !p_ic;
    char_u      *entry_text;

    /* Get the search string to use. */
    entry_text = get_find_dialog_text(initial_string, &wword, &mcase);

    s_findrep_struct.hwndOwner = s_hwnd;
    s_findrep_struct.Flags = FR_DOWN;
    if (mcase)
        s_findrep_struct.Flags |= FR_MATCHCASE;
    if (wword)
        s_findrep_struct.Flags |= FR_WHOLEWORD;
    if (entry_text != NULL && *entry_text != NUL)
        vim_strncpy(s_findrep_struct.lpstrFindWhat, entry_text,
                                           s_findrep_struct.wFindWhatLen - 1);
    vim_free(entry_text);
}
#endif

    static void
set_window_title(HWND hwnd, char *title)
{
#ifdef FEAT_MBYTE
    if (title != NULL && enc_codepage >= 0 && enc_codepage != (int)GetACP())
    {
        WCHAR   *wbuf;
        int     n;

        /* Convert the title from 'encoding' to ucs2. */
        wbuf = (WCHAR *)enc_to_ucs2((char_u *)title, NULL);
        if (wbuf != NULL)
        {
            n = SetWindowTextW(hwnd, wbuf);
            vim_free(wbuf);
            if (n != 0 || GetLastError() != ERROR_CALL_NOT_IMPLEMENTED)
                return;
            /* Retry with non-wide function (for Windows 98). */
        }
    }
#endif
    (void)SetWindowText(hwnd, (LPCSTR)title);
}

    void
gui_mch_find_dialog(exarg_T *eap)
{
#ifdef MSWIN_FIND_REPLACE
    if (s_findrep_msg != 0)
    {
        if (IsWindow(s_findrep_hwnd) && !s_findrep_is_find)
            DestroyWindow(s_findrep_hwnd);

        if (!IsWindow(s_findrep_hwnd))
        {
            initialise_findrep(eap->arg);
            s_findrep_hwnd = FindText((LPFINDREPLACE) &s_findrep_struct);
        }

        set_window_title(s_findrep_hwnd,
                               _("Find string (use '\\\\' to find  a '\\')"));
        (void)SetFocus(s_findrep_hwnd);

        s_findrep_is_find = TRUE;
    }
#endif
}


    void
gui_mch_replace_dialog(exarg_T *eap)
{
#ifdef MSWIN_FIND_REPLACE
    if (s_findrep_msg != 0)
    {
        if (IsWindow(s_findrep_hwnd) && s_findrep_is_find)
            DestroyWindow(s_findrep_hwnd);

        if (!IsWindow(s_findrep_hwnd))
        {
            initialise_findrep(eap->arg);
            s_findrep_hwnd = ReplaceText((LPFINDREPLACE) &s_findrep_struct);
        }

        set_window_title(s_findrep_hwnd,
                            _("Find & Replace (use '\\\\' to find  a '\\')"));
        (void)SetFocus(s_findrep_hwnd);

        s_findrep_is_find = FALSE;
    }
#endif
}


/*
 * Set visibility of the pointer.
 */
    void
gui_mch_mousehide(int hide)
{
    if (hide != gui.pointer_hidden)
    {
        ShowCursor(!hide);
        gui.pointer_hidden = hide;
    }
}

#ifdef FEAT_MENU
    static void
gui_mch_show_popupmenu_at(vimmenu_T *menu, int x, int y)
{
    /* Unhide the mouse, we don't get move events here. */
    gui_mch_mousehide(FALSE);

    (void)TrackPopupMenu(
        (HMENU)menu->submenu_id,
        TPM_LEFTALIGN | TPM_LEFTBUTTON,
        x, y,
        (int)0,     /*reserved param*/
        s_hwnd,
        NULL);
    /*
     * NOTE: The pop-up menu can eat the mouse up event.
     * We deal with this in normal.c.
     */
}
#endif

/*
 * Got a message when the system will go down.
 */
    static void
_OnEndSession(void)
{
    getout_preserve_modified(1);
}

/*
 * Get this message when the user clicks on the cross in the top right corner
 * of a Windows95 window.
 */
/*ARGSUSED*/
    static void
_OnClose(
    HWND hwnd)
{
    gui_shell_closed();
}

/*
 * Get a message when the window is being destroyed.
 */
    static void
_OnDestroy(
    HWND hwnd)
{
#ifdef WIN16_3DLOOK
    Ctl3dUnregister(s_hinst);
#endif
    if (!destroying)
        _OnClose(hwnd);
}

    static void
_OnPaint(
    HWND hwnd)
{
    if (!IsMinimized(hwnd))
    {
        PAINTSTRUCT ps;

        out_flush();        /* make sure all output has been processed */
        (void)BeginPaint(hwnd, &ps);

#ifdef FEAT_MBYTE
        /* prevent multi-byte characters from misprinting on an invalid
         * rectangle */
        if (has_mbyte)
        {
            RECT rect;

            GetClientRect(hwnd, &rect);
            ps.rcPaint.left = rect.left;
            ps.rcPaint.right = rect.right;
        }
#endif

        if (!IsRectEmpty(&ps.rcPaint))
            gui_redraw(ps.rcPaint.left, ps.rcPaint.top,
                    ps.rcPaint.right - ps.rcPaint.left + 1,
                    ps.rcPaint.bottom - ps.rcPaint.top + 1);
        EndPaint(hwnd, &ps);
    }
}

/*ARGSUSED*/
    static void
_OnSize(
    HWND hwnd,
    UINT state,
    int cx,
    int cy)
{
    if (!IsMinimized(hwnd))
    {
        gui_resize_shell(cx, cy);

#ifdef FEAT_MENU
        /* Menu bar may wrap differently now */
        gui_mswin_get_menu_height(TRUE);
#endif
    }
}

    static void
_OnSetFocus(
    HWND hwnd,
    HWND hwndOldFocus)
{
    gui_focus_change(TRUE);
    (void)MyWindowProc(hwnd, WM_SETFOCUS, (WPARAM)hwndOldFocus, 0);
}

    static void
_OnKillFocus(
    HWND hwnd,
    HWND hwndNewFocus)
{
    gui_focus_change(FALSE);
    (void)MyWindowProc(hwnd, WM_KILLFOCUS, (WPARAM)hwndNewFocus, 0);
}

/*
 * Get a message when the user switches back to vim
 */
#ifdef WIN16
    static BOOL
#else
    static LRESULT
#endif
_OnActivateApp(
    HWND hwnd,
    BOOL fActivate,
#ifdef WIN16
    HTASK dwThreadId
#else
    DWORD dwThreadId
#endif
        )
{
    /* we call gui_focus_change() in _OnSetFocus() */
    /* gui_focus_change((int)fActivate); */
    return MyWindowProc(hwnd, WM_ACTIVATEAPP, fActivate, (DWORD)dwThreadId);
}

#if defined(FEAT_WINDOWS) || defined(PROTO)
    void
gui_mch_destroy_scrollbar(scrollbar_T *sb)
{
    DestroyWindow(sb->id);
}
#endif

/*
 * Get current mouse coordinates in text window.
 */
    void
gui_mch_getmouse(int *x, int *y)
{
    RECT rct;
    POINT mp;

    (void)GetWindowRect(s_textArea, &rct);
    (void)GetCursorPos((LPPOINT)&mp);
    *x = (int)(mp.x - rct.left);
    *y = (int)(mp.y - rct.top);
}

/*
 * Move mouse pointer to character at (x, y).
 */
    void
gui_mch_setmouse(int x, int y)
{
    RECT rct;

    (void)GetWindowRect(s_textArea, &rct);
    (void)SetCursorPos(x + gui.border_offset + rct.left,
                       y + gui.border_offset + rct.top);
}

    static void
gui_mswin_get_valid_dimensions(
    int w,
    int h,
    int *valid_w,
    int *valid_h)
{
    int     base_width, base_height;

    base_width = gui_get_base_width()
        + GetSystemMetrics(SM_CXFRAME) * 2;
    base_height = gui_get_base_height()
        + GetSystemMetrics(SM_CYFRAME) * 2
        + GetSystemMetrics(SM_CYCAPTION)
#ifdef FEAT_MENU
        + gui_mswin_get_menu_height(FALSE)
#endif
        ;
    *valid_w = base_width +
                    ((w - base_width) / gui.char_width) * gui.char_width;
    *valid_h = base_height +
                    ((h - base_height) / gui.char_height) * gui.char_height;
}

    void
gui_mch_flash(int msec)
{
    RECT    rc;

    /*
     * Note: InvertRect() excludes right and bottom of rectangle.
     */
    rc.left = 0;
    rc.top = 0;
    rc.right = gui.num_cols * gui.char_width;
    rc.bottom = gui.num_rows * gui.char_height;
    InvertRect(s_hdc, &rc);
    gui_mch_flush();                    /* make sure it's displayed */

    ui_delay((long)msec, TRUE); /* wait for a few msec */

    InvertRect(s_hdc, &rc);
}

/*
 * Return flags used for scrolling.
 * The SW_INVALIDATE is required when part of the window is covered or
 * off-screen. Refer to MS KB Q75236.
 */
    static int
get_scroll_flags(void)
{
    HWND        hwnd;
    RECT        rcVim, rcOther, rcDest;

    GetWindowRect(s_hwnd, &rcVim);

    /* Check if the window is partly above or below the screen.  We don't care
     * about partly left or right of the screen, it is not relevant when
     * scrolling up or down. */
    if (rcVim.top < 0 || rcVim.bottom > GetSystemMetrics(SM_CYFULLSCREEN))
        return SW_INVALIDATE;

    /* Check if there is an window (partly) on top of us. */
    for (hwnd = s_hwnd; (hwnd = GetWindow(hwnd, GW_HWNDPREV)) != (HWND)0; )
        if (IsWindowVisible(hwnd))
        {
            GetWindowRect(hwnd, &rcOther);
            if (IntersectRect(&rcDest, &rcVim, &rcOther))
                return SW_INVALIDATE;
        }
    return 0;
}

/*
 * Delete the given number of lines from the given row, scrolling up any
 * text further down within the scroll region.
 */
    void
gui_mch_delete_lines(
    int     row,
    int     num_lines)
{
    RECT        rc;

    rc.left = FILL_X(gui.scroll_region_left);
    rc.right = FILL_X(gui.scroll_region_right + 1);
    rc.top = FILL_Y(row);
    rc.bottom = FILL_Y(gui.scroll_region_bot + 1);

    ScrollWindowEx(s_textArea, 0, -num_lines * gui.char_height,
                                    &rc, &rc, NULL, NULL, get_scroll_flags());

    UpdateWindow(s_textArea);
    /* This seems to be required to avoid the cursor disappearing when
     * scrolling such that the cursor ends up in the top-left character on
     * the screen...   But why?  (Webb) */
    /* It's probably fixed by disabling drawing the cursor while scrolling. */
    /* gui.cursor_is_valid = FALSE; */

    gui_clear_block(gui.scroll_region_bot - num_lines + 1,
                                                       gui.scroll_region_left,
        gui.scroll_region_bot, gui.scroll_region_right);
}

/*
 * Insert the given number of lines before the given row, scrolling down any
 * following text within the scroll region.
 */
    void
gui_mch_insert_lines(
    int         row,
    int         num_lines)
{
    RECT        rc;

    rc.left = FILL_X(gui.scroll_region_left);
    rc.right = FILL_X(gui.scroll_region_right + 1);
    rc.top = FILL_Y(row);
    rc.bottom = FILL_Y(gui.scroll_region_bot + 1);
    /* The SW_INVALIDATE is required when part of the window is covered or
     * off-screen.  How do we avoid it when it's not needed? */
    ScrollWindowEx(s_textArea, 0, num_lines * gui.char_height,
                                    &rc, &rc, NULL, NULL, get_scroll_flags());

    UpdateWindow(s_textArea);

    gui_clear_block(row, gui.scroll_region_left,
                                row + num_lines - 1, gui.scroll_region_right);
}


/*ARGSUSED*/
    void
gui_mch_exit(int rc)
{
    ReleaseDC(s_textArea, s_hdc);
    DeleteObject(s_brush);

#ifdef FEAT_TEAROFF
    /* Unload the tearoff bitmap */
    (void)DeleteObject((HGDIOBJ)s_htearbitmap);
#endif

    /* Destroy our window (if we have one). */
    if (s_hwnd != NULL)
    {
        destroying = TRUE;      /* ignore WM_DESTROY message now */
        DestroyWindow(s_hwnd);
    }

#ifdef GLOBAL_IME
    global_ime_end();
#endif
}

    static char_u *
logfont2name(LOGFONT lf)
{
    char        *p;
    char        *res;
    char        *charset_name;

    charset_name = charset_id2name((int)lf.lfCharSet);
    res = alloc((unsigned)(strlen(lf.lfFaceName) + 20
                    + (charset_name == NULL ? 0 : strlen(charset_name) + 2)));
    if (res != NULL)
    {
        p = res;
        /* make a normal font string out of the lf thing:*/
        sprintf((char *)p, "%s:h%d", lf.lfFaceName, pixels_to_points(
                         lf.lfHeight < 0 ? -lf.lfHeight : lf.lfHeight, TRUE));
        while (*p)
        {
            if (*p == ' ')
                *p = '_';
            ++p;
        }
#ifndef MSWIN16_FASTTEXT
        if (lf.lfItalic)
            STRCAT(p, ":i");
        if (lf.lfWeight >= FW_BOLD)
            STRCAT(p, ":b");
#endif
        if (lf.lfUnderline)
            STRCAT(p, ":u");
        if (lf.lfStrikeOut)
            STRCAT(p, ":s");
        if (charset_name != NULL)
        {
            STRCAT(p, ":c");
            STRCAT(p, charset_name);
        }
    }

    return res;
}

/*
 * Initialise vim to use the font with the given name.
 * Return FAIL if the font could not be loaded, OK otherwise.
 */
/*ARGSUSED*/
    int
gui_mch_init_font(char_u *font_name, int fontset)
{
    LOGFONT     lf;
    GuiFont     font = NOFONT;
    char_u      *p;

    /* Load the font */
    if (get_logfont(&lf, font_name, NULL, TRUE) == OK)
        font = get_font_handle(&lf);
    if (font == NOFONT)
        return FAIL;

    if (font_name == NULL)
        font_name = lf.lfFaceName;
#if defined(FEAT_MBYTE_IME) || defined(GLOBAL_IME)
    norm_logfont = lf;
#endif
#ifdef FEAT_MBYTE_IME
    im_set_font(&lf);
#endif
    gui_mch_free_font(gui.norm_font);
    gui.norm_font = font;
    current_font_height = lf.lfHeight;
    GetFontSize(font);

    p = logfont2name(lf);
    if (p != NULL)
    {
        hl_set_font_name(p);

        /* When setting 'guifont' to "*" replace it with the actual font name.
         * */
        if (STRCMP(font_name, "*") == 0 && STRCMP(p_guifont, "*") == 0)
        {
            vim_free(p_guifont);
            p_guifont = p;
        }
        else
            vim_free(p);
    }

#ifndef MSWIN16_FASTTEXT
    gui_mch_free_font(gui.ital_font);
    gui.ital_font = NOFONT;
    gui_mch_free_font(gui.bold_font);
    gui.bold_font = NOFONT;
    gui_mch_free_font(gui.boldital_font);
    gui.boldital_font = NOFONT;

    if (!lf.lfItalic)
    {
        lf.lfItalic = TRUE;
        gui.ital_font = get_font_handle(&lf);
        lf.lfItalic = FALSE;
    }
    if (lf.lfWeight < FW_BOLD)
    {
        lf.lfWeight = FW_BOLD;
        gui.bold_font = get_font_handle(&lf);
        if (!lf.lfItalic)
        {
            lf.lfItalic = TRUE;
            gui.boldital_font = get_font_handle(&lf);
        }
    }
#endif

    return OK;
}

#ifndef WPF_RESTORETOMAXIMIZED
# define WPF_RESTORETOMAXIMIZED 2   /* just in case someone doesn't have it */
#endif

/*
 * Return TRUE if the GUI window is maximized, filling the whole screen.
 */
    int
gui_mch_maximized()
{
    WINDOWPLACEMENT wp;

    wp.length = sizeof(WINDOWPLACEMENT);
    if (GetWindowPlacement(s_hwnd, &wp))
        return wp.showCmd == SW_SHOWMAXIMIZED
            || (wp.showCmd == SW_SHOWMINIMIZED
                    && wp.flags == WPF_RESTORETOMAXIMIZED);

    return 0;
}

/*
 * Called when the font changed while the window is maximized.  Compute the
 * new Rows and Columns.  This is like resizing the window.
 */
    void
gui_mch_newfont()
{
    RECT        rect;

    GetWindowRect(s_hwnd, &rect);
    gui_resize_shell(rect.right - rect.left
                        - GetSystemMetrics(SM_CXFRAME) * 2,
                     rect.bottom - rect.top
                        - GetSystemMetrics(SM_CYFRAME) * 2
                        - GetSystemMetrics(SM_CYCAPTION)
#ifdef FEAT_MENU
                        - gui_mswin_get_menu_height(FALSE)
#endif
            );
}

/*
 * Set the window title
 */
/*ARGSUSED*/
    void
gui_mch_settitle(
    char_u  *title,
    char_u  *icon)
{
    set_window_title(s_hwnd, (title == NULL ? "VIM" : (char *)title));
}

#ifdef FEAT_MOUSESHAPE
/* Table for shape IDCs.  Keep in sync with the mshape_names[] table in
 * misc2.c! */
static LPCSTR mshape_idcs[] =
{
    MAKEINTRESOURCE(IDC_ARROW),         /* arrow */
    MAKEINTRESOURCE(0),                 /* blank */
    MAKEINTRESOURCE(IDC_IBEAM),         /* beam */
    MAKEINTRESOURCE(IDC_SIZENS),        /* updown */
    MAKEINTRESOURCE(IDC_SIZENS),        /* udsizing */
    MAKEINTRESOURCE(IDC_SIZEWE),        /* leftright */
    MAKEINTRESOURCE(IDC_SIZEWE),        /* lrsizing */
    MAKEINTRESOURCE(IDC_WAIT),          /* busy */
#ifdef WIN3264
    MAKEINTRESOURCE(IDC_NO),            /* no */
#else
    MAKEINTRESOURCE(IDC_ICON),          /* no */
#endif
    MAKEINTRESOURCE(IDC_ARROW),         /* crosshair */
    MAKEINTRESOURCE(IDC_ARROW),         /* hand1 */
    MAKEINTRESOURCE(IDC_ARROW),         /* hand2 */
    MAKEINTRESOURCE(IDC_ARROW),         /* pencil */
    MAKEINTRESOURCE(IDC_ARROW),         /* question */
    MAKEINTRESOURCE(IDC_ARROW),         /* right-arrow */
    MAKEINTRESOURCE(IDC_UPARROW),       /* up-arrow */
    MAKEINTRESOURCE(IDC_ARROW)          /* last one */
};

    void
mch_set_mouse_shape(int shape)
{
    LPCSTR idc;

    if (shape == MSHAPE_HIDE)
        ShowCursor(FALSE);
    else
    {
        if (shape >= MSHAPE_NUMBERED)
            idc = MAKEINTRESOURCE(IDC_ARROW);
        else
            idc = mshape_idcs[shape];
#ifdef _WIN64
        SetClassLongPtr(s_textArea, GCLP_HCURSOR, (LONG_PTR)LoadCursor(NULL, idc));
#else
# ifdef WIN32
        SetClassLong(s_textArea, GCL_HCURSOR, (LONG)LoadCursor(NULL, idc));
# else
        SetClassWord(s_textArea, GCW_HCURSOR, (WORD)LoadCursor(NULL, idc));
# endif
#endif
        if (!p_mh)
        {
            POINT mp;

            /* Set the position to make it redrawn with the new shape. */
            (void)GetCursorPos((LPPOINT)&mp);
            (void)SetCursorPos(mp.x, mp.y);
            ShowCursor(TRUE);
        }
    }
}
#endif

#ifdef FEAT_BROWSE
/*
 * The file browser exists in two versions: with "W" uses wide characters,
 * without "W" the current codepage.  When FEAT_MBYTE is defined and on
 * Windows NT/2000/XP the "W" functions are used.
 */

# if defined(FEAT_MBYTE) && defined(WIN3264)
/*
 * Wide version of convert_filter().  Keep in sync!
 */
    static WCHAR *
convert_filterW(char_u *s)
{
    WCHAR       *res;
    unsigned    s_len = (unsigned)STRLEN(s);
    unsigned    i;

    res = (WCHAR *)alloc((s_len + 3) * sizeof(WCHAR));
    if (res != NULL)
    {
        for (i = 0; i < s_len; ++i)
            if (s[i] == '\t' || s[i] == '\n')
                res[i] = '\0';
            else
                res[i] = s[i];
        res[s_len] = NUL;
        /* Add two extra NULs to make sure it's properly terminated. */
        res[s_len + 1] = NUL;
        res[s_len + 2] = NUL;
    }
    return res;
}

/*
 * Wide version of gui_mch_browse().  Keep in sync!
 */
    static char_u *
gui_mch_browseW(
        int saving,
        char_u *title,
        char_u *dflt,
        char_u *ext,
        char_u *initdir,
        char_u *filter)
{
    /* We always use the wide function.  This means enc_to_ucs2() must work,
     * otherwise it fails miserably! */
    OPENFILENAMEW       fileStruct;
    WCHAR               fileBuf[MAXPATHL];
    WCHAR               *wp;
    int                 i;
    WCHAR               *titlep = NULL;
    WCHAR               *extp = NULL;
    WCHAR               *initdirp = NULL;
    WCHAR               *filterp;
    char_u              *p;

    if (dflt == NULL)
        fileBuf[0] = NUL;
    else
    {
        wp = enc_to_ucs2(dflt, NULL);
        if (wp == NULL)
            fileBuf[0] = NUL;
        else
        {
            for (i = 0; wp[i] != NUL && i < MAXPATHL - 1; ++i)
                fileBuf[i] = wp[i];
            fileBuf[i] = NUL;
            vim_free(wp);
        }
    }

    /* Convert the filter to Windows format. */
    filterp = convert_filterW(filter);

    memset(&fileStruct, 0, sizeof(OPENFILENAMEW));
#ifdef OPENFILENAME_SIZE_VERSION_400
    /* be compatible with Windows NT 4.0 */
    /* TODO: what to use for OPENFILENAMEW??? */
    fileStruct.lStructSize = sizeof(OPENFILENAME_SIZE_VERSION_400);
#else
    fileStruct.lStructSize = sizeof(fileStruct);
#endif

    if (title != NULL)
        titlep = enc_to_ucs2(title, NULL);
    fileStruct.lpstrTitle = titlep;

    if (ext != NULL)
        extp = enc_to_ucs2(ext, NULL);
    fileStruct.lpstrDefExt = extp;

    fileStruct.lpstrFile = fileBuf;
    fileStruct.nMaxFile = MAXPATHL;
    fileStruct.lpstrFilter = filterp;
    fileStruct.hwndOwner = s_hwnd;              /* main Vim window is owner*/
    /* has an initial dir been specified? */
    if (initdir != NULL && *initdir != NUL)
    {
        /* Must have backslashes here, no matter what 'shellslash' says */
        initdirp = enc_to_ucs2(initdir, NULL);
        if (initdirp != NULL)
        {
            for (wp = initdirp; *wp != NUL; ++wp)
                if (*wp == '/')
                    *wp = '\\';
        }
        fileStruct.lpstrInitialDir = initdirp;
    }

    /*
     * TODO: Allow selection of multiple files.  Needs another arg to this
     * function to ask for it, and need to use OFN_ALLOWMULTISELECT below.
     * Also, should we use OFN_FILEMUSTEXIST when opening?  Vim can edit on
     * files that don't exist yet, so I haven't put it in.  What about
     * OFN_PATHMUSTEXIST?
     * Don't use OFN_OVERWRITEPROMPT, Vim has its own ":confirm" dialog.
     */
    fileStruct.Flags = (OFN_NOCHANGEDIR | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY);
#ifdef FEAT_SHORTCUT
    if (curbuf->b_p_bin)
        fileStruct.Flags |= OFN_NODEREFERENCELINKS;
#endif
    if (saving)
    {
        if (!GetSaveFileNameW(&fileStruct))
            return NULL;
    }
    else
    {
        if (!GetOpenFileNameW(&fileStruct))
            return NULL;
    }

    vim_free(filterp);
    vim_free(initdirp);
    vim_free(titlep);
    vim_free(extp);

    /* Convert from UCS2 to 'encoding'. */
    p = ucs2_to_enc(fileBuf, NULL);
    if (p != NULL)
        /* when out of memory we get garbage for non-ASCII chars */
        STRCPY(fileBuf, p);
    vim_free(p);

    /* Give focus back to main window (when using MDI). */
    SetFocus(s_hwnd);

    /* Shorten the file name if possible */
    mch_dirname(IObuff, IOSIZE);
    p = shorten_fname((char_u *)fileBuf, IObuff);
    if (p == NULL)
        p = (char_u *)fileBuf;
    return vim_strsave(p);
}
# endif /* FEAT_MBYTE */


/*
 * Convert the string s to the proper format for a filter string by replacing
 * the \t and \n delimeters with \0.
 * Returns the converted string in allocated memory.
 *
 * Keep in sync with convert_filterW() above!
 */
    static char_u *
convert_filter(char_u *s)
{
    char_u      *res;
    unsigned    s_len = (unsigned)STRLEN(s);
    unsigned    i;

    res = alloc(s_len + 3);
    if (res != NULL)
    {
        for (i = 0; i < s_len; ++i)
            if (s[i] == '\t' || s[i] == '\n')
                res[i] = '\0';
            else
                res[i] = s[i];
        res[s_len] = NUL;
        /* Add two extra NULs to make sure it's properly terminated. */
        res[s_len + 1] = NUL;
        res[s_len + 2] = NUL;
    }
    return res;
}

/*
 * Select a directory.
 */
    char_u *
gui_mch_browsedir(char_u *title, char_u *initdir)
{
    /* We fake this: Use a filter that doesn't select anything and a default
     * file name that won't be used. */
    return gui_mch_browse(0, title, (char_u *)_("Not Used"), NULL,
                              initdir, (char_u *)_("Directory\t*.nothing\n"));
}

/*
 * Pop open a file browser and return the file selected, in allocated memory,
 * or NULL if Cancel is hit.
 *  saving  - TRUE if the file will be saved to, FALSE if it will be opened.
 *  title   - Title message for the file browser dialog.
 *  dflt    - Default name of file.
 *  ext     - Default extension to be added to files without extensions.
 *  initdir - directory in which to open the browser (NULL = current dir)
 *  filter  - Filter for matched files to choose from.
 *
 * Keep in sync with gui_mch_browseW() above!
 */
    char_u *
gui_mch_browse(
        int saving,
        char_u *title,
        char_u *dflt,
        char_u *ext,
        char_u *initdir,
        char_u *filter)
{
    OPENFILENAME        fileStruct;
    char_u              fileBuf[MAXPATHL];
    char_u              *initdirp = NULL;
    char_u              *filterp;
    char_u              *p;

# if defined(FEAT_MBYTE) && defined(WIN3264)
    if (os_version.dwPlatformId == VER_PLATFORM_WIN32_NT)
        return gui_mch_browseW(saving, title, dflt, ext, initdir, filter);
# endif

    if (dflt == NULL)
        fileBuf[0] = NUL;
    else
        vim_strncpy(fileBuf, dflt, MAXPATHL - 1);

    /* Convert the filter to Windows format. */
    filterp = convert_filter(filter);

    memset(&fileStruct, 0, sizeof(OPENFILENAME));
#ifdef OPENFILENAME_SIZE_VERSION_400
    /* be compatible with Windows NT 4.0 */
    fileStruct.lStructSize = sizeof(OPENFILENAME_SIZE_VERSION_400);
#else
    fileStruct.lStructSize = sizeof(fileStruct);
#endif

    fileStruct.lpstrTitle = title;
    fileStruct.lpstrDefExt = ext;

    fileStruct.lpstrFile = fileBuf;
    fileStruct.nMaxFile = MAXPATHL;
    fileStruct.lpstrFilter = filterp;
    fileStruct.hwndOwner = s_hwnd;              /* main Vim window is owner*/
    /* has an initial dir been specified? */
    if (initdir != NULL && *initdir != NUL)
    {
        /* Must have backslashes here, no matter what 'shellslash' says */
        initdirp = vim_strsave(initdir);
        if (initdirp != NULL)
            for (p = initdirp; *p != NUL; ++p)
                if (*p == '/')
                    *p = '\\';
        fileStruct.lpstrInitialDir = initdirp;
    }

    /*
     * TODO: Allow selection of multiple files.  Needs another arg to this
     * function to ask for it, and need to use OFN_ALLOWMULTISELECT below.
     * Also, should we use OFN_FILEMUSTEXIST when opening?  Vim can edit on
     * files that don't exist yet, so I haven't put it in.  What about
     * OFN_PATHMUSTEXIST?
     * Don't use OFN_OVERWRITEPROMPT, Vim has its own ":confirm" dialog.
     */
    fileStruct.Flags = (OFN_NOCHANGEDIR | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY);
#ifdef FEAT_SHORTCUT
    if (curbuf->b_p_bin)
        fileStruct.Flags |= OFN_NODEREFERENCELINKS;
#endif
    if (saving)
    {
        if (!GetSaveFileName(&fileStruct))
            return NULL;
    }
    else
    {
        if (!GetOpenFileName(&fileStruct))
            return NULL;
    }

    vim_free(filterp);
    vim_free(initdirp);

    /* Give focus back to main window (when using MDI). */
    SetFocus(s_hwnd);

    /* Shorten the file name if possible */
    mch_dirname(IObuff, IOSIZE);
    p = shorten_fname((char_u *)fileBuf, IObuff);
    if (p == NULL)
        p = (char_u *)fileBuf;
    return vim_strsave(p);
}
#endif /* FEAT_BROWSE */

/*ARGSUSED*/
    static void
_OnDropFiles(
    HWND hwnd,
    HDROP hDrop)
{
#ifdef FEAT_WINDOWS
#ifdef WIN3264
# define BUFPATHLEN _MAX_PATH
# define DRAGQVAL 0xFFFFFFFF
#else
# define BUFPATHLEN MAXPATHL
# define DRAGQVAL 0xFFFF
#endif
#ifdef FEAT_MBYTE
    WCHAR   wszFile[BUFPATHLEN];
#endif
    char    szFile[BUFPATHLEN];
    UINT    cFiles = DragQueryFile(hDrop, DRAGQVAL, NULL, 0);
    UINT    i;
    char_u  **fnames;
    POINT   pt;
    int_u   modifiers = 0;

    /* TRACE("_OnDropFiles: %d files dropped\n", cFiles); */

    /* Obtain dropped position */
    DragQueryPoint(hDrop, &pt);
    MapWindowPoints(s_hwnd, s_textArea, &pt, 1);

# ifdef FEAT_VISUAL
    reset_VIsual();
# endif

    fnames = (char_u **)alloc(cFiles * sizeof(char_u *));

    if (fnames != NULL)
        for (i = 0; i < cFiles; ++i)
        {
#ifdef FEAT_MBYTE
            if (DragQueryFileW(hDrop, i, wszFile, BUFPATHLEN) > 0)
                fnames[i] = ucs2_to_enc(wszFile, NULL);
            else
#endif
            {
                DragQueryFile(hDrop, i, szFile, BUFPATHLEN);
                fnames[i] = vim_strsave(szFile);
            }
        }

    DragFinish(hDrop);

    if (fnames != NULL)
    {
        if ((GetKeyState(VK_SHIFT) & 0x8000) != 0)
            modifiers |= MOUSE_SHIFT;
        if ((GetKeyState(VK_CONTROL) & 0x8000) != 0)
            modifiers |= MOUSE_CTRL;
        if ((GetKeyState(VK_MENU) & 0x8000) != 0)
            modifiers |= MOUSE_ALT;

        gui_handle_drop(pt.x, pt.y, modifiers, fnames, cFiles);

        s_need_activate = TRUE;
    }
#endif
}

/*ARGSUSED*/
    static int
_OnScroll(
    HWND hwnd,
    HWND hwndCtl,
    UINT code,
    int pos)
{
    static UINT prev_code = 0;   /* code of previous call */
    scrollbar_T *sb, *sb_info;
    long        val;
    int         dragging = FALSE;
    int         dont_scroll_save = dont_scroll;
#ifndef WIN3264
    int         nPos;
#else
    SCROLLINFO  si;

    si.cbSize = sizeof(si);
    si.fMask = SIF_POS;
#endif

    sb = gui_mswin_find_scrollbar(hwndCtl);
    if (sb == NULL)
        return 0;

    if (sb->wp != NULL)         /* Left or right scrollbar */
    {
        /*
         * Careful: need to get scrollbar info out of first (left) scrollbar
         * for window, but keep real scrollbar too because we must pass it to
         * gui_drag_scrollbar().
         */
        sb_info = &sb->wp->w_scrollbars[0];
    }
    else            /* Bottom scrollbar */
        sb_info = sb;
    val = sb_info->value;

    switch (code)
    {
        case SB_THUMBTRACK:
            val = pos;
            dragging = TRUE;
            if (sb->scroll_shift > 0)
                val <<= sb->scroll_shift;
            break;
        case SB_LINEDOWN:
            val++;
            break;
        case SB_LINEUP:
            val--;
            break;
        case SB_PAGEDOWN:
            val += (sb_info->size > 2 ? sb_info->size - 2 : 1);
            break;
        case SB_PAGEUP:
            val -= (sb_info->size > 2 ? sb_info->size - 2 : 1);
            break;
        case SB_TOP:
            val = 0;
            break;
        case SB_BOTTOM:
            val = sb_info->max;
            break;
        case SB_ENDSCROLL:
            if (prev_code == SB_THUMBTRACK)
            {
                /*
                 * "pos" only gives us 16-bit data.  In case of large file,
                 * use GetScrollPos() which returns 32-bit.  Unfortunately it
                 * is not valid while the scrollbar is being dragged.
                 */
                val = GetScrollPos(hwndCtl, SB_CTL);
                if (sb->scroll_shift > 0)
                    val <<= sb->scroll_shift;
            }
            break;

        default:
            /* TRACE("Unknown scrollbar event %d\n", code); */
            return 0;
    }
    prev_code = code;

#ifdef WIN3264
    si.nPos = (sb->scroll_shift > 0) ? val >> sb->scroll_shift : val;
    SetScrollInfo(hwndCtl, SB_CTL, &si, TRUE);
#else
    nPos = (sb->scroll_shift > 0) ? val >> sb->scroll_shift : val;
    SetScrollPos(hwndCtl, SB_CTL, nPos, TRUE);
#endif

    /*
     * When moving a vertical scrollbar, move the other vertical scrollbar too.
     */
    if (sb->wp != NULL)
    {
        scrollbar_T *sba = sb->wp->w_scrollbars;
        HWND    id = sba[ (sb == sba + SBAR_LEFT) ? SBAR_RIGHT : SBAR_LEFT].id;

#ifdef WIN3264
        SetScrollInfo(id, SB_CTL, &si, TRUE);
#else
        SetScrollPos(id, SB_CTL, nPos, TRUE);
#endif
    }

    /* Don't let us be interrupted here by another message. */
    s_busy_processing = TRUE;

    /* When "allow_scrollbar" is FALSE still need to remember the new
     * position, but don't actually scroll by setting "dont_scroll". */
    dont_scroll = !allow_scrollbar;

    gui_drag_scrollbar(sb, val, dragging);

    s_busy_processing = FALSE;
    dont_scroll = dont_scroll_save;

    return 0;
}


/*
 * Get command line arguments.
 * Use "prog" as the name of the program and "cmdline" as the arguments.
 * Copy the arguments to allocated memory.
 * Return the number of arguments (including program name).
 * Return pointers to the arguments in "argvp".
 * Return pointer to buffer in "tofree".
 * Returns zero when out of memory.
 */
/*ARGSUSED*/
    int
get_cmd_args(char *prog, char *cmdline, char ***argvp, char **tofree)
{
    int         i;
    char        *p;
    char        *progp;
    char        *pnew = NULL;
    char        *newcmdline;
    int         inquote;
    int         argc;
    char        **argv = NULL;
    int         round;

#ifdef FEAT_MBYTE
    /* Try using the Unicode version first, it takes care of conversion when
     * 'encoding' is changed. */
    argc = get_cmd_argsW(&argv);
    if (argc != 0)
        goto done;
#endif

    /* Handle the program name.  Remove the ".exe" extension, and find the 1st
     * non-space. */
    p = strrchr(prog, '.');
    if (p != NULL)
        *p = NUL;
    for (progp = prog; *progp == ' '; ++progp)
        ;

    /* The command line is copied to allocated memory, so that we can change
     * it.  Add the size of the string, the separating NUL and a terminating
     * NUL. */
    newcmdline = malloc(STRLEN(cmdline) + STRLEN(progp) + 2);
    if (newcmdline == NULL)
        return 0;

    /*
     * First round: count the number of arguments ("pnew" == NULL).
     * Second round: produce the arguments.
     */
    for (round = 1; round <= 2; ++round)
    {
        /* First argument is the program name. */
        if (pnew != NULL)
        {
            argv[0] = pnew;
            strcpy(pnew, progp);
            pnew += strlen(pnew);
            *pnew++ = NUL;
        }

        /*
         * Isolate each argument and put it in argv[].
         */
        p = cmdline;
        argc = 1;
        while (*p != NUL)
        {
            inquote = FALSE;
            if (pnew != NULL)
                argv[argc] = pnew;
            ++argc;
            while (*p != NUL && (inquote || (*p != ' ' && *p != '\t')))
            {
                /* Backslashes are only special when followed by a double
                 * quote. */
                i = (int)strspn(p, "\\");
                if (p[i] == '"')
                {
                    /* Halve the number of backslashes. */
                    if (i > 1 && pnew != NULL)
                    {
                        memset(pnew, '\\', i / 2);
                        pnew += i / 2;
                    }

                    /* Even nr of backslashes toggles quoting, uneven copies
                     * the double quote. */
                    if ((i & 1) == 0)
                        inquote = !inquote;
                    else if (pnew != NULL)
                        *pnew++ = '"';
                    p += i + 1;
                }
                else if (i > 0)
                {
                    /* Copy span of backslashes unmodified. */
                    if (pnew != NULL)
                    {
                        memset(pnew, '\\', i);
                        pnew += i;
                    }
                    p += i;
                }
                else
                {
                    if (pnew != NULL)
                        *pnew++ = *p;
#ifdef FEAT_MBYTE
                    /* Can't use mb_* functions, because 'encoding' is not
                     * initialized yet here. */
                    if (IsDBCSLeadByte(*p))
                    {
                        ++p;
                        if (pnew != NULL)
                            *pnew++ = *p;
                    }
#endif
                    ++p;
                }
            }

            if (pnew != NULL)
                *pnew++ = NUL;
            while (*p == ' ' || *p == '\t')
                ++p;                /* advance until a non-space */
        }

        if (round == 1)
        {
            argv = (char **)malloc((argc + 1) * sizeof(char *));
            if (argv == NULL )
            {
                vim_free(newcmdline);
                return 0;                  /* malloc error */
            }
            pnew = newcmdline;
        }
    }

done:

    argv[argc] = NULL;          /* NULL-terminated list */
    *argvp = argv;
    return argc;
}