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1.1 ! root 1: /*--------------------------------------- ! 2: BEEPER1.C -- Timer Demo Program No. 1 ! 3: ---------------------------------------*/ ! 4: ! 5: #define INCL_WIN ! 6: #include <os2.h> ! 7: ! 8: #define ID_TIMER 1 ! 9: ! 10: MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ; ! 11: ! 12: int main (void) ! 13: { ! 14: static char szClientClass [] = "Beeper1" ; ! 15: static ULONG flFrameFlags = FCF_TITLEBAR | FCF_SYSMENU | ! 16: FCF_SIZEBORDER | FCF_MINMAX | ! 17: FCF_SHELLPOSITION | FCF_TASKLIST ; ! 18: HAB hab ; ! 19: HMQ hmq ; ! 20: HWND hwndFrame, hwndClient ; ! 21: QMSG qmsg ; ! 22: ! 23: hab = WinInitialize (0) ; ! 24: hmq = WinCreateMsgQueue (hab, 0) ; ! 25: ! 26: WinRegisterClass (hab, szClientClass, ClientWndProc, 0L, 0) ; ! 27: ! 28: hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE, ! 29: &flFrameFlags, szClientClass, NULL, ! 30: 0L, NULL, 0, &hwndClient) ; ! 31: ! 32: WinStartTimer (hab, hwndClient, ID_TIMER, 1000) ; ! 33: ! 34: while (WinGetMsg (hab, &qmsg, NULL, 0, 0)) ! 35: WinDispatchMsg (hab, &qmsg) ; ! 36: ! 37: WinStopTimer (hab, hwndClient, ID_TIMER) ; ! 38: ! 39: WinDestroyWindow (hwndFrame) ; ! 40: WinDestroyMsgQueue (hmq) ; ! 41: WinTerminate (hab) ; ! 42: return 0 ; ! 43: } ! 44: ! 45: MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2) ! 46: { ! 47: static BOOL fFlipFlop ; ! 48: HPS hps ; ! 49: RECTL rcl ; ! 50: ! 51: switch (msg) ! 52: { ! 53: case WM_TIMER: ! 54: WinAlarm (HWND_DESKTOP, WA_NOTE) ; ! 55: fFlipFlop = !fFlipFlop ; ! 56: WinInvalidateRect (hwnd, NULL, FALSE) ; ! 57: return 0 ; ! 58: ! 59: case WM_PAINT: ! 60: hps = WinBeginPaint (hwnd, NULL, NULL) ; ! 61: ! 62: WinQueryWindowRect (hwnd, &rcl) ; ! 63: WinFillRect (hps, &rcl, fFlipFlop ? CLR_BLUE : CLR_RED) ; ! 64: ! 65: WinEndPaint (hps) ; ! 66: return 0 ; ! 67: } ! 68: return WinDefWindowProc (hwnd, msg, mp1, mp2) ; ! 69: }
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