how to track minimize, maximize events

[Pravin Kumar]

Hello,

Maximizing / minimizing window can be done only by using buttons on the toolbar or by toolbar menu. One can check for the corresponding messages for the window concerned and take appropriate actions.

Whether window is being maximized / minimized can be known if we store the previous window state. If you modify the PreTranslateMessage function to some thing as shown below, you can trap the maximizing event in a simplified way.

BOOL CMainFrame::PreTranslateMessage(MSG* pMsg) 
{
	// TODO: Add your specialized code here and/or call the base class
	static int State = 0;
	BOOL Flag = CFrameWnd::PreTranslateMessage(pMsg);
	if ((State == SW_SHOWMAXIMIZED) != IsZoomed())
		// Window is getting zoomed
		...
		State = SW_SHOWMAXIMIZED;
	return Flag;
}

Regards,
Pravin.