CMFCToolBar::SetLargeIcons
Visual Studio 2012
Specifies whether toolbar buttons display large icons.
static void SetLargeIcons( BOOL bLargeIcons=TRUE );
The framework calls this method when the user changes the state of the Large Icons check box in the Options tab of the Customize dialog box. This method resizes all toolbars in the application.
By default, the framework displays regular icons.
For more information about the Customize dialog box, see CMFCToolBarsCustomizeDialog Class.