www.pudn.com > manypeopleallchat.rar > Waiting.cpp

// Waiting.cpp: implementation of the CWaiting class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "Chatter.h" 
#include "Waiting.h" 
#include "connectdlg.h" 
#ifdef _DEBUG 
#undef THIS_FILE 
static char THIS_FILE[]=__FILE__; 
#define new DEBUG_NEW 
#endif 
 
////////////////////////////////////////////////////////////////////// 
// Construction/Destruction 
////////////////////////////////////////////////////////////////////// 
 
CWaiting::CWaiting() 
{ 
	m_pDlg = new CConnectDlg; 
	m_pDlg->Create(IDD_CONNECTING, NULL); 
	m_pDlg->CenterWindow(NULL); 
	m_pDlg->ShowWindow(SW_SHOW); 
} 
 
CWaiting::~CWaiting() 
{ 
	m_pDlg->ShowWindow(SW_HIDE); 
	m_pDlg->DestroyWindow(); 
	delete m_pDlg; 
} 
 
void CWaiting::BeginWaiting() 
{ 
	m_pDlg->ShowWindow(SW_SHOW); 
} 
void CWaiting::EndWaiting() 
{ 
	m_pDlg->ShowWindow(SW_HIDE); 
		 
} 
 
void CWaiting::SetPrompt(LPCSTR sPrompt) 
{ 
	m_pDlg->GetDlgItem(IDC_HINT)->SetWindowText(sPrompt); 
} 
 
BOOL CWaiting::DoWaiting(HANDLE hEvent, DWORD nDelay) 
{ 
	DWORD sStart = GetTickCount(); 
	do  
	{ 
		MSG msg ;  
		 
		//从消息队列中读取数据 
		if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))  
		{  
			DispatchMessage(&msg);  
		}		 
		 
		//检查是否有事件激活 
		int result = MsgWaitForMultipleObjects(1,  
			&hEvent,  
			TRUE, 
			0, 
			QS_ALLEVENTS); 
		 
		if(result == WAIT_OBJECT_0) 
		{  
			//事件来了,返回TRUE 
			return TRUE; 
		} 
		else 
		{ 
			//windows消息来了或者超时了:继续循环 
			continue; 
		}  
 
	} while(GetTickCount() - sStart < nDelay); 
	 
	AfxMessageBox("超时"); 
	//超时 
	return FALSE; 
}