CMFCRibbonPanel::IsCollapsed
Indicates whether the display size of the ribbon panel is minimized in the horizontal direction.
BOOL IsCollapsed() const;
Return Value
TRUE if the display size of the ribbon panel is minimized in the horizontal direction; otherwise FALSE.
Remarks
When a ribbon panel is collapsed, it only displays its default button, its name, and a drop-down arrow.
Requirements
Header: afxribbonpanel.h