使用MFC中的AfxBeginThread创建多线程

DWORDWINAPIThreadProc(LPVOIDpParam)

{

CDC*pdc;

//将传入的参数转为RECT*

RECT*rect=(RECT*)pParam;

//得到设备句柄

pdc=AfxGetApp()->m_pMainWnd->GetDC();

//设置画刷

CBrushbrush(HS_VERTICAL,RGB(0,255,0));

//选入到设备中

CBrush*oldbrush=pdc->SelectObject(&brush);

intn=0;

while(n++<=2000)

{

pdc->Rectangle(rect->left,rect->top,rect->right+n,rect->bottom);

Sleep(1);

}

pdc->SelectObject(oldbrush);

pdc->ReleaseOutputDC();

return0;

}

voidCCreateThreadRectDlg::OnThread()

{

//TODO:Addyourcontrolnotificationhandlercodehere

RECTrect1;

rect1.left=20;//左上角x坐标

rect1.top=100;//左上角y坐标

rect1.right=20;//右下角x坐标

rect1.bottom=rect1.top+100;//右下角y坐标

//创建第一个线程ThreadProc,相对优先级THREAD_PRIORITY_IDLE面对任何等级调整为1

AfxBeginThread((AFX_THREADPROC)ThreadProc,&rect1,THREAD_PRIORITY_IDLE);

RECTrect2;

rect2.left=rect1.left;

rect2.top=rect1.bottom+20;

rect2.right=rect1.right;

rect2.bottom=rect2.top+100;

//创建第二个线程ThreadProc,相对优先级THREAD_PRIORITY_TIME_CRITICAL

//面对任何等级调整为15,面对REALTIME等级调整为32

AfxBeginThread((AFX_THREADPROC)ThreadProc,&rect2,THREAD_PRIORITY_TIME_CRITICAL);

}