Timer et Sleep

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Hi,

Could you tell me why when i do this :

int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{

SetTimer(NULL, NULL, 500, TimerProc);

Sleep(4000);

return 0;
}

void CALLBACK TimerProc(HWND hwnd, UINT uMsg, UINT idEvent, DWORD
dwTime)
{
char msg[100];

sprintf(msg, "-- Tick Tack --");
Trace(msg); //write in a text file
}

void Trace(char *message)
{
FILE *trace;
trace=fopen("TimerEvolue.txt","a");

if(trace!=NULL)
{
fprintf(trace,"\t%s\n",message);
fprintf(trace,"/************************************************************************************************************/\n");

}

fclose(trace);
}

I've no trace of my timer in the Text file?

Thanks.

.

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