Windows应用程序的退出

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void CDialog::OnOK()
{
	if (!UpdateData(TRUE))
	{
		TRACE(traceAppMsg, 0, "UpdateData failed during dialog termination.\n");
		// the UpdateData routine will set focus to correct item
		return;
	}
	EndDialog(IDOK);
}


void CDialog::OnCancel()
{
	EndDialog(IDCANCEL);
}


void CDialog::EndDialog(int nResult)
{
	ASSERT(::IsWindow(m_hWnd));


	if (m_nFlags & (WF_MODALLOOP|WF_CONTINUEMODAL))
		EndModalLoop(nResult);


	::EndDialog(m_hWnd, nResult);
}

// 主消息循环:
	while (GetMessage(&msg, NULL, 0, 0))
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}


LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;


	switch (message)
	{
	case WM_COMMAND:
		wmId    = LOWORD(wParam);
		wmEvent = HIWORD(wParam);
		// 分析菜单选择:
		switch (wmId)
		{
		case IDM_ABOUT:
			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
			break;
		case IDM_EXIT:
			DestroyWindow(hWnd);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;
	case WM_PAINT:
		hdc = BeginPaint(hWnd, &ps);
		// TODO: 在此添加任意绘图代码...
		EndPaint(hWnd, &ps);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

在基于对话框程序中，创建一个线程
AfxBeginThread(ProcessThread,this);
线程函数
UINT CXDlg::ProcessThread(LPVOID pParam)
{


	CXDlg *pDlg=static_cast<CXDlg*>(pParam);
	if (NULL==pDlg)return 1;
//这里调用退出函数
}

所以需要获取句柄，调用AfxGetMainWnd()->SendMessage(WM_CLOSE); 

Windows应用程序的退出

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原文地址：http://blog.csdn.net/flyfish1986/article/details/42583895