BCGControlBar Pro for MFC
void CBCGPRibbonBar::ToggleMinimizeState ( )

Toggles minimized and normal Ribbon control state.

Use this function to toggle minimized and normal state.

In the minimized state Ribbon control is hidden, only tabs are displayed. When the user clicks a tab, the Ribbon control is displayed as a popup window, which is closed when the user clicks away or executes a command.