VisualCpp.org Collection of Visual C++ Stuffs

How to add taskbar button in modeless windows?

Yesterday I have included a Model less dialog in my project, for some online data display. After initial Unit Testing , I required Task bar button for my model less dialog because when executed because it always go back in background, whenever i click on my main application window and i can't set always on top style as it can create problem. only solution i have to provide it with Taskbar button so that by clicking on Taskbar button, it get focus. for achieving it, you just have to set Desktop Window as parent of model less window. here CWnd::GetDesktopWindow() api come very handy!

CWnd *pDeskWnd= GetDesktopWindow();
CMyModellessDialog *pMyModellessDialog = new CMyModellessDialog ();
pMyModellessDialog ->Create(IDD_DIALOG_MODELLESS,pDeskWnd);
pMyModellessDialog ->ShowWindow(SW_SHOW);

PPS:- Don't forget to delete the pMyModellessDialog pointer afterward!

How to create Dialog which is initially inactive?

Many situation come when you required your MFC dialog created initially in active or don't take keyboard focus from other window..humm don't get worryi will tll you the solution.... and here is solution , you just have to return FALSE instead of true from OnInitDialog function to create Dialog initially inactive..

BOOL CMyDialog::OnInitDialog()
{
return FALSE;
}

How do I prevent the escape key, when pressed, from closing a dialog window?

Simply override the CYourDialog::OnCancel() virtual function, but this will also block closing from cross button present on system menu.. now to achieve both functionality do this:-

// Called when user clicks the close button
void CMyDialog::OnClose()
{
CDialog::OnCancel();
}

// called when user presses ESC button or clicks IDCANCEL button
void CMyDialog::OnCancel()
{
// Do nothing
}