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- /*-----------------------------------------------------
- MOUSDEMO.C -- Demonstrates mouse message processing
- (c) 1988, Ziff Communications Co.
- PC Magazine * Charles Petzold, 9/88
- -----------------------------------------------------*/
-
- #define INCL_WIN
- #define INCL_GPI
- #include <os2.h>
- #include <stdio.h>
- #define ID_TIMER 1
-
- MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
- HAB hab ;
-
- int main (void)
- {
- static CHAR szClientClass [] = "MousDemo" ;
- HMQ hmq ;
- HWND hwndFrame, hwndClient ;
- QMSG qmsg ;
- ULONG flFrameFlags = FCF_STANDARD & ~FCF_MENU ;
-
- hab = WinInitialize (0) ;
- hmq = WinCreateMsgQueue (hab, 0) ;
-
- WinRegisterClass (hab, szClientClass, ClientWndProc, CS_SIZEREDRAW, 0) ;
-
- hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
- &flFrameFlags, szClientClass,
- "Mouse Demo",
- 0L, NULL, 0, &hwndClient) ;
-
- while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
- WinDispatchMsg (hab, &qmsg) ;
-
- WinDestroyWindow (hwndFrame) ;
- WinDestroyMsgQueue (hmq) ;
- WinTerminate (hab) ;
- return 0 ;
- }
-
- VOID PaintWindow (HWND hwnd, HPS hps, SHORT xPointer, SHORT yPointer)
- {
- static CHAR szBuffer [40] ;
- RECTL rcl ;
-
- sprintf (szBuffer, " Pointer Position = (%d, %d) ",
- xPointer, yPointer) ;
- WinQueryWindowRect (hwnd, &rcl) ;
- GpiSetBackMix (hps, BM_OVERPAINT) ;
- WinDrawText (hps, -1, szBuffer, &rcl, CLR_NEUTRAL, CLR_BACKGROUND,
- DT_CENTER | DT_VCENTER) ;
- }
-
- MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
- {
- static SHORT xPointer, yPointer ;
- HPS hps;
- POINTL ptl ;
-
- switch (msg)
- {
- case WM_CREATE:
- WinStartTimer (hab, hwnd, ID_TIMER, 1000) ;
- return 0 ;
-
- case WM_TIMER:
- WinQueryPointerPos (HWND_DESKTOP, &ptl) ;
- WinMapWindowPoints (HWND_DESKTOP, hwnd, &ptl, 1) ;
- xPointer = (SHORT) ptl.x ;
- yPointer = (SHORT) ptl.y ;
-
- hps = WinGetPS (hwnd) ;
- PaintWindow (hwnd, hps, xPointer, yPointer) ;
- WinReleasePS (hps) ;
- return 0 ;
-
- case WM_MOUSEMOVE:
- xPointer = MOUSEMSG(&msg)->x ;
- yPointer = MOUSEMSG(&msg)->y ;
-
- hps = WinGetPS (hwnd) ;
- PaintWindow (hwnd, hps, xPointer, yPointer) ;
- WinReleasePS (hps) ;
- break ;
-
- case WM_BUTTON1DOWN:
- DosBeep (256, 100) ;
- break ;
-
- case WM_BUTTON1UP:
- DosBeep (512, 100) ;
- return 0 ;
-
- case WM_BUTTON1DBLCLK:
- DosBeep (1024, 100) ;
- return 0 ;
-
- case WM_PAINT:
- hps = WinBeginPaint (hwnd, NULL, NULL) ;
- GpiErase (hps) ;
- PaintWindow (hwnd, hps, xPointer, yPointer) ;
- WinEndPaint (hps) ;
- return 0 ;
-
- case WM_DESTROY:
- WinStopTimer (hab, hwnd, ID_TIMER) ;
- return 0 ;
- }
- return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
- }
-