CMDIChildWndEx::IsTaskbarThumbnailClipRectEnabled
Tells whether automatic selection of a portion of a window's client area to display as that window's thumbnail in the taskbar is enabled or disabled.
BOOL IsTaskbarThumbnailClipRectEnabled() const;
Return Value
Returns TRUE if automatic selection of a portion of a window's client area to display is enabled; otherwise FALSE.
Requirements
Header: afxmdichildwndex.h