代码大致是这样子的 期间基本就是定时器在运行,没有其他什么任务 switch(nIDEvent) { case 15: { //这里是一系列处理 //然后判断条件,切换计时器 if (w != 1) { KillTimer(nIDEvent); SetTimer(16,2000,NULL); } break; } case 16: { //这里是一系列处理 //然后判断条件,切换计时器 if (w == 1) { KillTimer(nIDEvent); SetTimer(15,50,NULL); } break; } }每次切换 计时器16的时候15的计时器的最后一次就会计算2000ms,不太搞得明白。
仅供参考#pragma comment(lib,"user32") #include <stdio.h> #include <time.h> #include <sys/timeb.h> #include <windows.h> char datestr[16]; char timestr[16]; char mss[4]; void log(char *s) { struct tm *now; struct timeb tb; ftime(&tb); now=localtime(&tb.time); sprintf(datestr,"%04d-%02d-%02d",now->tm_year+1900,now->tm_mon+1,now->tm_mday); sprintf(timestr,"%02d:%02d:%02d",now->tm_hour ,now->tm_min ,now->tm_sec ); sprintf(mss,"%03d",tb.millitm); printf("%s %s.%s %s",datestr,timestr,mss,s); } VOID CALLBACK myTimerProc1( HWND hwnd, // handle of window for timer messages UINT uMsg, // WM_TIMER message UINT idEvent, // timer identifier DWORD dwTime // current system time ) { log("In myTimerProc1\n"); } VOID CALLBACK myTimerProc2( HWND hwnd, // handle of window for timer messages UINT uMsg, // WM_TIMER message UINT idEvent, // timer identifier DWORD dwTime // current system time ) { log("In myTimerProc2\n"); } int main() { int i; MSG msg; SetTimer(NULL,0,1000,myTimerProc1); SetTimer(NULL,0,2000,myTimerProc2); for (i=0;i<20;i++) { Sleep(500); log("In main\n"); if (GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return 0; } //2012-07-26 17:29:06.375 In main //2012-07-26 17:29:06.875 In myTimerProc1 //2012-07-26 17:29:07.375 In main //2012-07-26 17:29:07.875 In myTimerProc2 //2012-07-26 17:29:08.375 In main //2012-07-26 17:29:08.375 In myTimerProc1 //2012-07-26 17:29:08.875 In main //2012-07-26 17:29:08.875 In myTimerProc1 //2012-07-26 17:29:09.375 In main //2012-07-26 17:29:09.890 In myTimerProc2 //2012-07-26 17:29:10.390 In main //2012-07-26 17:29:10.390 In myTimerProc1 //2012-07-26 17:29:10.890 In main //2012-07-26 17:29:10.890 In myTimerProc1 //2012-07-26 17:29:11.390 In main //2012-07-26 17:29:11.890 In myTimerProc2 //2012-07-26 17:29:12.390 In main //2012-07-26 17:29:12.390 In myTimerProc1 //2012-07-26 17:29:12.890 In main //2012-07-26 17:29:12.890 In myTimerProc1 //2012-07-26 17:29:13.390 In main //2012-07-26 17:29:13.890 In myTimerProc2 //2012-07-26 17:29:14.390 In main //2012-07-26 17:29:14.390 In myTimerProc1 //2012-07-26 17:29:14.890 In main //2012-07-26 17:29:14.890 In myTimerProc1 //2012-07-26 17:29:15.390 In main //2012-07-26 17:29:15.890 In myTimerProc2 //2012-07-26 17:29:16.390 In main //2012-07-26 17:29:16.390 In myTimerProc1 //2012-07-26 17:29:16.890 In main //2012-07-26 17:29:16.890 In myTimerProc1 //2012-07-26 17:29:17.390 In main //2012-07-26 17:29:17.890 In myTimerProc2 //2012-07-26 17:29:18.390 In main //2012-07-26 17:29:18.390 In myTimerProc1 //2012-07-26 17:29:18.890 In main //2012-07-26 17:29:18.890 In myTimerProc1 //2012-07-26 17:29:19.390 In main //2012-07-26 17:29:19.890 In myTimerProc2
switch(nIDEvent)
{
case 15:
{
//这里是一系列处理
//然后判断条件,切换计时器
if (w != 1)
{
KillTimer(nIDEvent);
SetTimer(16,2000,NULL);
}
break;
}
case 16:
{
//这里是一系列处理
//然后判断条件,切换计时器
if (w == 1)
{
KillTimer(nIDEvent);
SetTimer(15,50,NULL);
}
break;
}
}每次切换 计时器16的时候15的计时器的最后一次就会计算2000ms,不太搞得明白。
#include <stdio.h>
#include <time.h>
#include <sys/timeb.h>
#include <windows.h>
char datestr[16];
char timestr[16];
char mss[4];
void log(char *s) {
struct tm *now;
struct timeb tb; ftime(&tb);
now=localtime(&tb.time);
sprintf(datestr,"%04d-%02d-%02d",now->tm_year+1900,now->tm_mon+1,now->tm_mday);
sprintf(timestr,"%02d:%02d:%02d",now->tm_hour ,now->tm_min ,now->tm_sec );
sprintf(mss,"%03d",tb.millitm);
printf("%s %s.%s %s",datestr,timestr,mss,s);
}
VOID CALLBACK myTimerProc1(
HWND hwnd, // handle of window for timer messages
UINT uMsg, // WM_TIMER message
UINT idEvent, // timer identifier
DWORD dwTime // current system time
) {
log("In myTimerProc1\n");
}
VOID CALLBACK myTimerProc2(
HWND hwnd, // handle of window for timer messages
UINT uMsg, // WM_TIMER message
UINT idEvent, // timer identifier
DWORD dwTime // current system time
) {
log("In myTimerProc2\n");
}
int main() {
int i;
MSG msg; SetTimer(NULL,0,1000,myTimerProc1);
SetTimer(NULL,0,2000,myTimerProc2);
for (i=0;i<20;i++) {
Sleep(500);
log("In main\n");
if (GetMessage(&msg,NULL,0,0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
} }
return 0;
}
//2012-07-26 17:29:06.375 In main
//2012-07-26 17:29:06.875 In myTimerProc1
//2012-07-26 17:29:07.375 In main
//2012-07-26 17:29:07.875 In myTimerProc2
//2012-07-26 17:29:08.375 In main
//2012-07-26 17:29:08.375 In myTimerProc1
//2012-07-26 17:29:08.875 In main
//2012-07-26 17:29:08.875 In myTimerProc1
//2012-07-26 17:29:09.375 In main
//2012-07-26 17:29:09.890 In myTimerProc2
//2012-07-26 17:29:10.390 In main
//2012-07-26 17:29:10.390 In myTimerProc1
//2012-07-26 17:29:10.890 In main
//2012-07-26 17:29:10.890 In myTimerProc1
//2012-07-26 17:29:11.390 In main
//2012-07-26 17:29:11.890 In myTimerProc2
//2012-07-26 17:29:12.390 In main
//2012-07-26 17:29:12.390 In myTimerProc1
//2012-07-26 17:29:12.890 In main
//2012-07-26 17:29:12.890 In myTimerProc1
//2012-07-26 17:29:13.390 In main
//2012-07-26 17:29:13.890 In myTimerProc2
//2012-07-26 17:29:14.390 In main
//2012-07-26 17:29:14.390 In myTimerProc1
//2012-07-26 17:29:14.890 In main
//2012-07-26 17:29:14.890 In myTimerProc1
//2012-07-26 17:29:15.390 In main
//2012-07-26 17:29:15.890 In myTimerProc2
//2012-07-26 17:29:16.390 In main
//2012-07-26 17:29:16.390 In myTimerProc1
//2012-07-26 17:29:16.890 In main
//2012-07-26 17:29:16.890 In myTimerProc1
//2012-07-26 17:29:17.390 In main
//2012-07-26 17:29:17.890 In myTimerProc2
//2012-07-26 17:29:18.390 In main
//2012-07-26 17:29:18.390 In myTimerProc1
//2012-07-26 17:29:18.890 In main
//2012-07-26 17:29:18.890 In myTimerProc1
//2012-07-26 17:29:19.390 In main
//2012-07-26 17:29:19.890 In myTimerProc2