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- /*---------------------------------------
- BEEPER1.C -- Timer Demo Program No. 1
- ---------------------------------------*/
-
- #define INCL_WIN
- #include <os2.h>
-
- #define ID_TIMER 1
-
- MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
-
- int main (void)
- {
- static char szClientClass [] = "Beeper1" ;
- static ULONG flFrameFlags = FCF_TITLEBAR | FCF_SYSMENU |
- FCF_SIZEBORDER | FCF_MINMAX |
- FCF_SHELLPOSITION | FCF_TASKLIST ;
- HAB hab ;
- HMQ hmq ;
- HWND hwndFrame, hwndClient ;
- QMSG qmsg ;
-
- hab = WinInitialize (0) ;
- hmq = WinCreateMsgQueue (hab, 0) ;
-
- WinRegisterClass (hab, szClientClass, ClientWndProc, 0L, 0) ;
-
- hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
- &flFrameFlags, szClientClass, NULL,
- 0L, NULL, 0, &hwndClient) ;
-
- WinStartTimer (hab, hwndClient, ID_TIMER, 1000) ;
-
- while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
- WinDispatchMsg (hab, &qmsg) ;
-
- WinStopTimer (hab, hwndClient, ID_TIMER) ;
-
- WinDestroyWindow (hwndFrame) ;
- WinDestroyMsgQueue (hmq) ;
- WinTerminate (hab) ;
- return 0 ;
- }
-
- MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
- {
- static BOOL fFlipFlop ;
- HPS hps ;
- RECTL rcl ;
-
- switch (msg)
- {
- case WM_TIMER:
- WinAlarm (HWND_DESKTOP, WA_NOTE) ;
- fFlipFlop = !fFlipFlop ;
- WinInvalidateRect (hwnd, NULL, FALSE) ;
- return 0 ;
-
- case WM_PAINT:
- hps = WinBeginPaint (hwnd, NULL, NULL) ;
-
- WinQueryWindowRect (hwnd, &rcl) ;
- WinFillRect (hps, &rcl, fFlipFlop ? CLR_BLUE : CLR_RED) ;
-
- WinEndPaint (hps) ;
- return 0 ;
- }
- return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
- }
-