C++控制檯程式中使用定時器

轉自部落格：http://www.cnblogs.com/phinecos/archive/2008/03/08/1096691.html

作者：洞庭散人

“我現在專案是一個控制檯程式，用到的Win32API都是與介面無關的，今天需要加入定時器重新整理的功能，由於沒有訊息迴圈，所以WM_TIMER訊息應該如何處理呢？綜合了下網上找到的資料，寫了個簡單的demo,個人以為這種在一個執行緒中建立定時器，再通過指定的回撥函式來處理定時器觸發的模式是比較好的。”

demo:

 

#include <Windows.h>
#include <stdio.h>
#include <conio.h>

 

int count = 0;

 

void CALLBACK TimerProc(HWND hWnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime)
{
 count++;
 printf("WM_TIMER in work thread count=%d/n",count);
}

 

DWORD CALLBACK Thread(PVOID pvoid)
{
 MSG msg;
 PeekMessage(&msg,NULL,WM_USER,WM_USER,PM_NOREMOVE);
 UINT timerid = SetTimer(NULL,111,3000,TimerProc);
 BOOL bRet;
 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/n");
 return 0;
}

 

int main()
{
 DWORD dwThreadID;
 printf("use timer in workthread of console application/n");
 HANDLE hThread = CreateThread(NULL,0,Thread,NULL,0,NULL);
 _getch();
 return 0;
};

 

本人在瞭解了作者的意圖以後，也做了一個類封裝：

#include <Windows.h>
#include <stdio.h>
#include <conio.h>

class CTimer
{
public:
 CTimer();
 void CreateTimerThread(int* pi);
 static DWORD CALLBACK TimeThread(PVOID pvoid);
 static void CALLBACK TimeProc(HWND hWnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime);
};

 

CTimer::CTimer()
{
}

 

void CTimer::CreateTimerThread(int* pi)
{
 HANDLE hand = CreateThread(NULL,0,CTimer::TimeThread,pi,0,NULL);
}

 

DWORD CALLBACK CTimer::TimeThread(PVOID pvoid)
{
 int* pi = (int*)pvoid;
 int itm = *pi;
 MSG msg;
 PeekMessage(&msg,NULL,WM_USER,WM_USER,PM_NOREMOVE);
 UINT timeid = SetTimer(NULL,111,itm,CTimer::TimeProc);
 BOOL bRet;
 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,timeid);
 printf("thread end here/n");
 return 0;
}

 

void CALLBACK CTimer::TimeProc(HWND hWnd, UINT uMsg, UINT_PTR idEvent, DWORD dwTime)
{
 printf("WM_TIMER in work thread count/n");
}

 

int main()
{
 int iTime = 1000;
 int* pi = &iTime;
 CTimer* ptime = new CTimer;
 ptime->CreateTimerThread(pi);
 _getch();
 return 0;
};

 

感謝洞庭散人...