在控制台程序上创建时钟的做法

清疚 2024-04-19 13:00 2阅读 0赞

作者：朱金灿

来源：[https://blog.csdn.net/clever101][https_blog.csdn.net_clever101]

在windows环境下控制台程序上创建时钟，需要手动建立一个消息循环，这个消息循环，可以在主线程里建立，也可以在子线程中建立，参考代码如下：

/**
    * @file              ConsoleTimer.cpp
    * @brief             测试在windows环境下控制台程序上创建时钟
    * @details
    * @author            朱金灿
    * @date              2019年9月14日
    * @version           1.0.0.1
    * @par               Copyright (c):DreamStudio
    * @par               History:
    */
    
    #include <windows.h>
    #include <stdio.h>
    #include <time.h>
    #include <sys/timeb.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 TimerProc(
    	HWND hwnd,     // handle of window for timer messages
    	UINT uMsg,     // WM_TIMER message
    	UINT_PTR idEvent,  // timer identifier
    	DWORD dwTime   // current system time
    )
    {
    	static int s_count = 0;
    	log("In TimerProc \n");
    }
    
    DWORD CALLBACK Thread(PVOID pvoid)
    {
    	MSG msg;
    	BOOL bRet;
    	UINT timerid;
    
    	PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
    	timerid = SetTimer(NULL, 0, 1000, TimerProc);
    
    	while ((bRet = GetMessage(&msg, NULL, 0, 0)) != 0)
    	{
    		if (bRet == -1)
    		{
    			printf("Error:the thread will quit,error id is %d\n", GetLastError());
    			break;
    		}
    		else
    		{
    			TranslateMessage(&msg);
    			DispatchMessage(&msg);
    		}
    	}
    	KillTimer(NULL, timerid);
    	printf("thread end here");
    	return 0;
    }
    
    /*
    在主线程中建立消息循环
    */
    void CommonMethod()
    {
    	int i;
    	MSG msg;
    
    	SetTimer(NULL, 0, 1000, TimerProc);
    	for (i = 0; i < 20; i++) 
    	{
    		if (GetMessage(&msg, NULL, 0, 0))
    		{
    			TranslateMessage(&msg);
    			DispatchMessage(&msg);
    		}
    	}
    }
    
    /*
    使用子线程的方式
    */
    void UseThread()
    {
    	HANDLE hThread;
    
    	printf("use timer in console application\n");
    	hThread = CreateThread(NULL, 0, Thread, NULL, 0, NULL);
    }
    
    int main() {
    
    	// CommonMethod();
    
    	UseThread();
    
    	getchar();
    	return 0;
    }

以上代码在64位Win7，VS2015上编译通过，效果图如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NsZXZlcjEwMQ_size_16_color_FFFFFF_t_70][]

参考文献：

1.  [定时器SetTimer如何用在win32控制台用用程序中][SetTimer_win32]

[https_blog.csdn.net_clever101]: https://blog.csdn.net/clever101
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NsZXZlcjEwMQ_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/ac0a6cdb0fc24d57a18024d14d3c81ef.png
[SetTimer_win32]: https://blog.csdn.net/qq_31839479/article/details/51423359