#include <windows.h>
#include <stdio.h>

#define Timer 1

//定时器过程
void
CALLBACK TimerProc(HWND hwnd,
                                   UINT message,
                                   UINT idTimer,
                                   DWORD dwTime)
{
        printf("俺想要的操作在这里！\n");
       
        KillTimer(NULL, Timer);
}

int
main()
{
        //设置定时器，每隔3秒执行一次
        SetTimer(NULL, Timer, 3000, TimerProc);  //第二个参数为定时器ID，第三个参数为间隔时间(毫秒)

        MSG msg;   

        while(GetMessage(&msg, NULL, 0, 0))
        {
                if(msg.message == WM_TIMER)
                {
                        TranslateMessage(&msg);
                        DispatchMessage(&msg);
                }
        }

        getchar();

        return 0;
}

#include <windows.h>
#include <stdio.h>

#define Timer 1

//定时器过程
void CALLBACK TimerProc(HWND hwnd,
                                   UINT message,
                                   UINT idTimer,
                                   DWORD dwTime)
{
        while(1)
        {
     printf("俺想要的操作在这里！\n");
         Sleep(3000);
        }
       

        KillTimer(NULL, Timer);
}

int main()
{
        MSG msg;
        //设置定时器，每隔3秒执行一次
        SetTimer(NULL, Timer, 3000, TimerProc); //第二个参数为定时器ID，第三个参数为间隔时间(毫秒)
   
       
        if(GetMessage(&msg, NULL, 0, 0)&&msg.message == WM_TIMER)
        {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
        }

       

        getchar();//我改成了这样貌似没办法运行到这里,我以为能取代线程的

        return 0;
}

#define _WIN32_WINNT 0x0500

#include <windows.h>
#include <stdio.h>

HANDLE gDoneEvent;

VOID CALLBACK TimerRoutine(PVOID lpParam, BOOLEAN TimerOrWaitFired)
{
    if (lpParam == NULL)
    {
        printf("TimerRoutine lpParam is NULL\n");
    }
    else
    {
        // lpParam points to the argument; in this case it is an int

        printf("Timer routine called. Parameter is %d.\n", 
                *(int*)lpParam);
    }

    SetEvent(gDoneEvent);
}

int main()
{
    HANDLE hTimer = NULL;
    HANDLE hTimerQueue = NULL;
    int arg = 123;

    // Use an event object to track the TimerRoutine execution
    gDoneEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
    if (NULL == gDoneEvent)
    {
        printf("CreateEvent failed (%d)\n", GetLastError());
        return 1;
    }

    // Create the timer queue.
    hTimerQueue = CreateTimerQueue();
    if (NULL == hTimerQueue)
    {
        printf("CreateTimerQueue failed (%d)\n", GetLastError());
        return 2;
    }

    // Set a timer to call the timer routine in 10 seconds.
    if (!CreateTimerQueueTimer( &hTimer, hTimerQueue, 
            (WAITORTIMERCALLBACK)TimerRoutine, &arg , 10000, 0, 0))
    {
        printf("CreateTimerQueueTimer failed (%d)\n", GetLastError());
        return 3;
    }

    // TODO: Do other useful work here 

    printf("Call timer routine in 10 seconds...\n");

    // Wait for the timer-queue thread to complete using an event 
    // object. The thread will signal the event at that time.

    if (WaitForSingleObject(gDoneEvent, INFINITE) != WAIT_OBJECT_0)
        printf("WaitForSingleObject failed (%d)\n", GetLastError());

    CloseHandle(gDoneEvent);

    // Delete all timers in the timer queue.
    if (!DeleteTimerQueue(hTimerQueue))
        printf("DeleteTimerQueue failed (%d)\n", GetLastError());

    return 0;
}

以上内容来自MSDN

謝啦,我用线程代替了