Windows Message Handling

void CAboutWindow::OnClose()
 {  MessageBox(_T( "Closing the window!"))   //Call the Base class member function, which will close the window.    CWnd::OnClose() }
Reference:  Windows Message Handling - Part 1

Reference: Windows Message Handling - Part 2


The most common problems people ask about are "How do I trap the ESC key so it doesn't terminate my application?" and "How do I trap the Enter key so it doesn't terminate my application?". These are easy.
Reference: Creating a Dialog-based App