模态对话框要求自己实现自己的消息循环，当然，建议它还是处于主线程中，所以最好是由它再调用主线程的消息循环函数，此时主线程自身的消息循环函数被阻塞，等待模板对话框的消息循环函数退出
参考代码如下:
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INT_PTR XX::DoModal(LPCWSTR lpszXmlId, HWND hParent/*=NULL*/, bool bShadow/*=false*/, DM::CRect rect/* = NULL*/)
{ BOOL bEnableParent = FALSE;
if(NULL == hParent)
{
hParent = GetActiveWnd();
}
if (hParent && hParent != ::GetDesktopWindow() && ::IsWindowEnabled(hParent))
{
::EnableWindow(hParent, FALSE);
bEnableParent = TRUE;
}
if(!DM_CreateWindow(lpszXmlId, rect.left,rect.top,rect.Width(),rect.Height(), hParent, bShadow))
{
::EnableWindow(hParent, TRUE);
return 0; // 此处失败了
}
GetClientRect(rect);
if (!rect.IsRectEmpty())
{
CenterWindow();
}
SendMessage(WM_INITDIALOG);//发送init消息
if(GetExStyle()&WS_EX_TOOLWINDOW)
{
::ShowWindow(m_hWnd,SW_SHOWNOACTIVATE);
}
else
{
::ShowWindow(m_hWnd,SW_SHOWNORMAL);
}
::SetWindowPos(m_hWnd, /*HWND_TOP*/HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_SHOWWINDOW);
Run(m_hWnd,true);// 消息循环
if (bEnableParent)
{
::EnableWindow(hParent, TRUE);
}
return m_nRetCode;
}void XX::EndDialog( INT_PTR nResult )
{ m_nRetCode = nResult;
PostMessage(WM_QUIT);
} |
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