dlls/comctl32/monthcal.c

   1 /*
   2  * Month calendar control
   3  *
   4  * Copyright 1998 Eric Kohl
   5  *
   6  * NOTES
   7  *   This is just a dummy control. An author is needed! Any volunteers?
   8  *   I will only improve this control once in a while.
   9  *     Eric <ekohl@abo.rhein-zeitung.de>
  10  *
  11  * TODO:
  12  *   - All messages.
  13  *   - All notifications.
  14  *
  15  */
  16
  17 #include "commctrl.h"
  18 #include "monthcal.h"
  19 #include "win.h"
  20 #include "debug.h"
  21
  22
  23 #define MONTHCAL_GetInfoPtr(wndPtr) ((MONTHCAL_INFO *)wndPtr->wExtra[0])
  24
  25
  26
  27
  28
  29
  30 static LRESULT
  31 MONTHCAL_Create (WND *wndPtr, WPARAM32 wParam, LPARAM lParam)
  32 {
  33     MONTHCAL_INFO *infoPtr;
  34
  35     /* allocate memory for info structure */
  36     infoPtr = (MONTHCAL_INFO *)COMCTL32_Alloc (sizeof(MONTHCAL_INFO));
  37     wndPtr->wExtra[0] = (DWORD)infoPtr;
  38
  39     if (infoPtr == NULL) {
  40         ERR (monthcal, "could not allocate info memory!\n");
  41         return 0;
  42     }
  43
  44     if ((MONTHCAL_INFO*)wndPtr->wExtra[0] != infoPtr) {
  45         ERR (monthcal, "pointer assignment error!\n");
  46         return 0;
  47     }
  48
  49     /* initialize info structure */
  50
  51
  52
  53     return 0;
  54 }
  55
  56
  57 static LRESULT
  58 MONTHCAL_Destroy (WND *wndPtr, WPARAM32 wParam, LPARAM lParam)
  59 {
  60     MONTHCAL_INFO *infoPtr = MONTHCAL_GetInfoPtr(wndPtr);
  61
  62
  63
  64
  65
  66
  67     /* free ipaddress info data */
  68     COMCTL32_Free (infoPtr);
  69
  70     return 0;
  71 }
  72
  73
  74
  75
  76 LRESULT WINAPI
  77 MONTHCAL_WindowProc (HWND32 hwnd, UINT32 uMsg, WPARAM32 wParam, LPARAM lParam)
  78 {
  79     WND *wndPtr = WIN_FindWndPtr(hwnd);
  80
  81     switch (uMsg)
  82     {
  83
  84
  85         case WM_CREATE:
  86             return MONTHCAL_Create (wndPtr, wParam, lParam);
  87
  88         case WM_DESTROY:
  89             return MONTHCAL_Destroy (wndPtr, wParam, lParam);
  90
  91         default:
  92             if (uMsg >= WM_USER)
  93                 ERR (monthcal, "unknown msg %04x wp=%08x lp=%08lx\n",
  94                      uMsg, wParam, lParam);
  95             return DefWindowProc32A (hwnd, uMsg, wParam, lParam);
  96     }
  97     return 0;
  98 }
  99
 100
 101 VOID
 102 MONTHCAL_Register (VOID)
 103 {
 104     WNDCLASS32A wndClass;
 105
 106     if (GlobalFindAtom32A (MONTHCAL_CLASS32A)) return;
 107
 108     ZeroMemory (&wndClass, sizeof(WNDCLASS32A));
 109     wndClass.style         = CS_GLOBALCLASS;
 110     wndClass.lpfnWndProc   = (WNDPROC32)MONTHCAL_WindowProc;
 111     wndClass.cbClsExtra    = 0;
 112     wndClass.cbWndExtra    = sizeof(MONTHCAL_INFO *);
 113     wndClass.hCursor       = LoadCursor32A (0, IDC_ARROW32A);
 114     wndClass.hbrBackground = (HBRUSH32)(COLOR_WINDOW + 1);
 115     wndClass.lpszClassName = MONTHCAL_CLASS32A;
 116
 117     RegisterClass32A (&wndClass);
 118 }
 119
 120
 121 VOID
 122 MONTHCAL_Unregister (VOID)
 123 {
 124     if (GlobalFindAtom32A (MONTHCAL_CLASS32A))
 125         UnregisterClass32A (MONTHCAL_CLASS32A, (HINSTANCE32)NULL);
 126 }
 127