2 * Explorer desktop support
4 * Copyright 2006 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/unicode.h"
27 #include <wine/debug.h>
28 #include "explorer_private.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(explorer
);
32 #define DESKTOP_CLASS_ATOM ((LPCWSTR)MAKEINTATOM(32769))
33 #define DESKTOP_ALL_ACCESS 0x01ff
35 static BOOL using_root
;
37 /* window procedure for the desktop window */
38 static LRESULT WINAPI
desktop_wnd_proc( HWND hwnd
, UINT message
, WPARAM wp
, LPARAM lp
)
40 WINE_TRACE( "got msg %04x wp %lx lp %lx\n", message
, wp
, lp
);
45 if ((wp
& 0xfff0) == SC_CLOSE
) ExitWindows( 0, 0 );
53 return (LRESULT
)SetCursor( LoadCursorA( 0, (LPSTR
)IDC_ARROW
) );
59 if (!using_root
) PaintDesktop( (HDC
)wp
);
65 BeginPaint( hwnd
, &ps
);
66 if (!using_root
&& ps
.fErase
) PaintDesktop( ps
.hdc
);
67 EndPaint( hwnd
, &ps
);
72 return DefWindowProcW( hwnd
, message
, wp
, lp
);
76 /* create the desktop and the associated X11 window, and make it the current desktop */
77 static unsigned long create_desktop( const char *name
, unsigned int width
, unsigned int height
)
79 HMODULE x11drv
= GetModuleHandleA( "winex11.drv" );
81 unsigned long xwin
= 0;
82 unsigned long (*create_desktop_func
)(unsigned int, unsigned int);
84 desktop
= CreateDesktopA( name
, NULL
, NULL
, 0, DESKTOP_ALL_ACCESS
, NULL
);
87 WINE_ERR( "failed to create desktop %s error %d\n", wine_dbgstr_a(name
), GetLastError() );
90 /* magic: desktop "root" means use the X11 root window */
91 if (x11drv
&& strcasecmp( name
, "root" ))
93 create_desktop_func
= (void *)GetProcAddress( x11drv
, "wine_create_desktop" );
94 if (create_desktop_func
) xwin
= create_desktop_func( width
, height
);
96 SetThreadDesktop( desktop
);
100 /* retrieve the default desktop size from the X11 driver config */
101 /* FIXME: this is for backwards compatibility, should probably be changed */
102 static BOOL
get_default_desktop_size( unsigned int *width
, unsigned int *height
)
106 DWORD size
= sizeof(buffer
);
109 /* @@ Wine registry key: HKCU\Software\Wine\X11 Driver */
110 if (RegOpenKeyA( HKEY_CURRENT_USER
, "Software\\Wine\\X11 Driver", &hkey
)) return FALSE
;
111 if (!RegQueryValueExA( hkey
, "Desktop", 0, NULL
, (LPBYTE
)buffer
, &size
))
112 ret
= (sscanf( buffer
, "%ux%u", width
, height
) == 2);
117 static void initialize_display_settings( HWND desktop
)
119 static const WCHAR display_device_guid_propW
[] = {
120 '_','_','w','i','n','e','_','d','i','s','p','l','a','y','_',
121 'd','e','v','i','c','e','_','g','u','i','d',0 };
128 UuidToStringA( &guid
, &guid_str
);
129 WINE_TRACE( "display guid %s\n", guid_str
);
131 guid_atom
= GlobalAddAtomA( (LPCSTR
)guid_str
);
132 SetPropW( desktop
, display_device_guid_propW
, ULongToHandle(guid_atom
) );
134 RpcStringFreeA( &guid_str
);
136 /* Store current display mode in the registry */
137 if (EnumDisplaySettingsExW( NULL
, ENUM_CURRENT_SETTINGS
, &dmW
, 0 ))
139 WINE_TRACE( "Current display mode %ux%u %u bpp %u Hz\n", dmW
.dmPelsWidth
,
140 dmW
.dmPelsHeight
, dmW
.dmBitsPerPel
, dmW
.dmDisplayFrequency
);
141 ChangeDisplaySettingsExW( NULL
, &dmW
, 0,
142 CDS_GLOBAL
| CDS_NORESET
| CDS_UPDATEREGISTRY
,
147 static void set_desktop_window_title( HWND hwnd
, const char *name
)
149 static const WCHAR desktop_nameW
[] = {'W','i','n','e',' ','d','e','s','k','t','o','p',0};
150 static const WCHAR desktop_name_separatorW
[] = {' ', '-', ' ', 0};
151 WCHAR
*window_titleW
= NULL
;
152 int window_title_len
;
157 SetWindowTextW( hwnd
, desktop_nameW
);
161 name_len
= MultiByteToWideChar( CP_ACP
, 0, name
, -1, NULL
, 0 );
162 window_title_len
= name_len
* sizeof(WCHAR
)
163 + sizeof(desktop_name_separatorW
)
164 + sizeof(desktop_nameW
);
165 window_titleW
= HeapAlloc( GetProcessHeap(), 0, window_title_len
);
168 SetWindowTextW( hwnd
, desktop_nameW
);
172 MultiByteToWideChar( CP_ACP
, 0, name
, -1,
173 window_titleW
, name_len
);
174 strcatW( window_titleW
, desktop_name_separatorW
);
175 strcatW( window_titleW
, desktop_nameW
);
177 SetWindowTextW( hwnd
, window_titleW
);
178 HeapFree( GetProcessHeap(), 0, window_titleW
);
181 /* main desktop management function */
182 void manage_desktop( char *arg
)
186 unsigned long xwin
= 0;
187 unsigned int width
, height
;
188 char *cmdline
= NULL
;
190 const char *name
= NULL
;
192 /* get the rest of the command line (if any) */
193 while (*p
&& !isspace(*p
)) p
++;
197 while (*p
&& isspace(*p
)) p
++;
201 /* parse the desktop option */
202 /* the option is of the form /desktop=name[,widthxheight] */
203 if (*arg
== '=' || *arg
== ',')
206 if ((p
= strchr( arg
, ',' ))) *p
++ = 0;
207 if (!p
|| sscanf( p
, "%ux%u", &width
, &height
) != 2)
213 xwin
= create_desktop( name
, width
, height
);
215 else if (get_default_desktop_size( &width
, &height
))
218 xwin
= create_desktop( name
, width
, height
);
221 if (!xwin
) using_root
= TRUE
; /* using the root window */
223 /* create the desktop window */
224 hwnd
= CreateWindowExW( 0, DESKTOP_CLASS_ATOM
, NULL
,
225 WS_POPUP
| WS_VISIBLE
| WS_CLIPSIBLINGS
| WS_CLIPCHILDREN
,
226 GetSystemMetrics(SM_XVIRTUALSCREEN
), GetSystemMetrics(SM_YVIRTUALSCREEN
),
227 GetSystemMetrics(SM_CXVIRTUALSCREEN
), GetSystemMetrics(SM_CYVIRTUALSCREEN
),
229 if (hwnd
== GetDesktopWindow())
231 SetWindowLongPtrW( hwnd
, GWLP_WNDPROC
, (LONG_PTR
)desktop_wnd_proc
);
232 SendMessageW( hwnd
, WM_SETICON
, ICON_BIG
, (LPARAM
)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO
)));
233 if (name
) set_desktop_window_title( hwnd
, name
);
234 SystemParametersInfoA( SPI_SETDESKPATTERN
, -1, NULL
, FALSE
);
235 SetDeskWallPaper( (LPSTR
)-1 );
236 initialize_display_settings( hwnd
);
237 initialize_diskarbitration();
239 initialize_systray();
243 DestroyWindow( hwnd
); /* someone beat us to it */
247 /* if we have a command line, execute it */
251 PROCESS_INFORMATION pi
;
253 memset( &si
, 0, sizeof(si
) );
255 WINE_TRACE( "starting %s\n", wine_dbgstr_a(cmdline
) );
256 if (CreateProcessA( NULL
, cmdline
, NULL
, NULL
, FALSE
, 0, NULL
, NULL
, &si
, &pi
))
258 CloseHandle( pi
.hThread
);
259 CloseHandle( pi
.hProcess
);
263 /* run the desktop message loop */
266 WINE_TRACE( "desktop message loop starting on hwnd %p\n", hwnd
);
267 while (GetMessageW( &msg
, 0, 0, 0 )) DispatchMessageW( &msg
);
268 WINE_TRACE( "desktop message loop exiting for hwnd %p\n", hwnd
);