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- /*------------------------------------------
- BITCAT2.C -- Bitmap Creation and Display
- ------------------------------------------*/
-
- #define INCL_WIN
- #define INCL_GPI
- #include <os2.h>
- #include <stdlib.h>
- #include "bitcat.h"
-
- MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
-
- HAB hab ;
-
- int main (void)
- {
- static CHAR szClientClass [] = "BitCat2" ;
- static ULONG flFrameFlags = FCF_TITLEBAR | FCF_SYSMENU |
- FCF_SIZEBORDER | FCF_MINMAX |
- FCF_SHELLPOSITION | FCF_TASKLIST ;
- HMQ hmq ;
- HWND hwndFrame, hwndClient ;
- QMSG qmsg ;
-
- hab = WinInitialize (0) ;
- hmq = WinCreateMsgQueue (hab, 0) ;
-
- WinRegisterClass (hab, szClientClass, ClientWndProc, CS_SIZEREDRAW, 0) ;
-
- hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
- &flFrameFlags, szClientClass, NULL,
- 0L, NULL, 0, &hwndClient) ;
-
- while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
- WinDispatchMsg (hab, &qmsg) ;
-
- WinDestroyWindow (hwndFrame) ;
- WinDestroyMsgQueue (hmq) ;
- WinTerminate (hab) ;
- return 0 ;
- }
-
- MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
- {
- static HBITMAP hbm ;
- static HDC hdcMemory ;
- static HPS hpsMemory ;
- static SHORT cxClient, cyClient ;
- BITMAPINFO *pbmi ;
- BITMAPINFOHEADER bmp ;
- HPS hps ;
- POINTL aptl [4] ;
- SIZEL sizl ;
-
- switch (msg)
- {
- case WM_CREATE:
-
- /*-------------------------------------------------
- Open memory DC and create PS associated with it
- -------------------------------------------------*/
-
- hdcMemory = DevOpenDC (hab, OD_MEMORY, "*", 0L, NULL, NULL) ;
-
- sizl.cx = 0 ;
- sizl.cy = 0 ;
-
- hpsMemory = GpiCreatePS (hab, hdcMemory, &sizl,
- PU_PELS | GPIF_DEFAULT |
- GPIT_MICRO | GPIA_ASSOC) ;
-
- /*------------------------
- Create 32 by 32 bitmap
- ------------------------*/
-
- bmp.cbFix = sizeof bmp ;
- bmp.cx = 32 ;
- bmp.cy = 32 ;
- bmp.cPlanes = 1 ;
- bmp.cBitCount = 1 ;
-
- hbm = GpiCreateBitmap (hpsMemory, &bmp, 0L, NULL, NULL) ;
-
- /*------------------------------
- Select bitmap into memory PS
- ------------------------------*/
-
- GpiSetBitmap (hpsMemory, hbm) ;
-
- /*-------------------------------------
- Set bitmap bits from abBitCat array
- -------------------------------------*/
-
- pbmi = malloc (sizeof (BITMAPINFO) + sizeof (RGB)) ;
-
- pbmi->cbFix = sizeof bmp ;
- pbmi->cx = 32 ;
- pbmi->cy = 32 ;
- pbmi->cPlanes = 1 ;
- pbmi->cBitCount = 1 ;
-
- pbmi->argbColor[0].bBlue = 0 ;
- pbmi->argbColor[0].bGreen = 0 ;
- pbmi->argbColor[0].bRed = 0 ;
- pbmi->argbColor[1].bBlue = 0xFF ;
- pbmi->argbColor[1].bGreen = 0xFF ;
- pbmi->argbColor[1].bRed = 0xFF ;
-
- GpiSetBitmapBits (hpsMemory, 0L, 32L, abBitCat, pbmi) ;
-
- free (pbmi) ;
- return 0 ;
-
- case WM_SIZE:
- cxClient = SHORT1FROMMP (mp2) ;
- cyClient = SHORT2FROMMP (mp2) ;
- return 0 ;
-
- case WM_PAINT:
- hps = WinBeginPaint (hwnd, NULL, NULL) ;
-
- aptl[0].x = 0 ; // target lower left
- aptl[0].y = 0 ;
-
- aptl[1].x = cxClient ; // target upper right
- aptl[1].y = cyClient ;
-
- aptl[2].x = 0 ; // source lower left
- aptl[2].y = 0 ;
-
- aptl[3].x = 32 ; // source upper right
- aptl[3].y = 32 ;
-
- GpiBitBlt (hps, hpsMemory, 4L, aptl, ROP_SRCCOPY, BBO_AND) ;
-
- aptl[1] = aptl[3] ; // target upper right
-
- GpiBitBlt (hps, hpsMemory, 3L, aptl, ROP_SRCCOPY, BBO_AND) ;
-
- WinEndPaint (hps) ;
- return 0 ;
-
- case WM_DESTROY:
- GpiDestroyPS (hpsMemory) ;
- DevCloseDC (hdcMemory) ;
- GpiDeleteBitmap (hbm) ;
- return 0 ;
- }
- return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
- }
-