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Annotation of pmsdk/samples/petzold/chap12/loadbmp2.c, revision 1.1.1.1

1.1       root        1: /*----------------------------------------------------
                      2:    LOADBMP2.C -- Loads a Bitmap Resource and Draws it
                      3:   ----------------------------------------------------*/
                      4: 
                      5: #define INCL_WIN
                      6: #include <os2.h>
                      7: #include "loadbmp.h"
                      8: 
                      9: MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
                     10: 
                     11: int main (void)
                     12:      {
                     13:      static CHAR  szClientClass [] = "LoadBmp2" ;
                     14:      static ULONG flFrameFlags = FCF_TITLEBAR      | FCF_SYSMENU |
                     15:                                  FCF_SIZEBORDER    | FCF_MINMAX  |
                     16:                                  FCF_SHELLPOSITION | FCF_TASKLIST ;
                     17:      HAB          hab ;
                     18:      HMQ          hmq ;
                     19:      HWND         hwndFrame, hwndClient ;
                     20:      QMSG         qmsg ;
                     21: 
                     22:      hab = WinInitialize (0) ;
                     23:      hmq = WinCreateMsgQueue (hab, 0) ;
                     24: 
                     25:      WinRegisterClass (hab, szClientClass, ClientWndProc, CS_SIZEREDRAW, 0) ;
                     26: 
                     27:      hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
                     28:                                      &flFrameFlags, szClientClass, NULL,
                     29:                                      0L, NULL, 0, &hwndClient) ;
                     30: 
                     31:      while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
                     32:           WinDispatchMsg (hab, &qmsg) ;
                     33: 
                     34:      WinDestroyWindow (hwndFrame) ;
                     35:      WinDestroyMsgQueue (hmq) ;
                     36:      WinTerminate (hab) ;
                     37:      return 0 ;
                     38:      }
                     39: 
                     40: MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
                     41:      {
                     42:      static HBITMAP hbm ;
                     43:      HPS            hps ;
                     44:      RECTL          rcl ;
                     45: 
                     46:      switch (msg)
                     47:           {
                     48:           case WM_CREATE:
                     49:                hps = WinGetPS (hwnd) ;
                     50:                hbm = GpiLoadBitmap (hps, NULL, IDB_HELLO, 0L, 0L) ;
                     51:                WinReleasePS (hps) ;
                     52:                return 0 ;
                     53: 
                     54:           case WM_PAINT:
                     55:                hps = WinBeginPaint (hwnd, NULL, NULL) ;
                     56:                GpiErase (hps) ;
                     57: 
                     58:                WinQueryWindowRect (hwnd, &rcl) ;
                     59: 
                     60:                if (hbm)
                     61:                     WinDrawBitmap (hps, hbm, NULL, (PPOINTL) &rcl,
                     62:                                    CLR_NEUTRAL, CLR_BACKGROUND, DBM_STRETCH) ;
                     63: 
                     64:                WinEndPaint (hps) ;
                     65:                return 0 ;
                     66: 
                     67:           case WM_DESTROY:
                     68:                if (hbm)
                     69:                     GpiDeleteBitmap (hbm) ;               
                     70:                return 0 ;
                     71:           }
                     72:      return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
                     73:      }

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