The variation code kControlUsesOwningWindowsFontVariant applies when text content is used. The resource ID of the icon suite resource you wish to display should be in the resID field of the ControlButtonContentInfo structure. The resource ID of the color icon resource you wish to display should be in the resID field of the ControlButtonContentInfo structure. The resource ID of the picture resource you wish to display should be in the resID field of the ControlButtonContentInfo structure. The handle of the icon suite you wish to display should be in the iconSuite field of the ControlButtonContentInfo structure.
Content type uses a color icon handle.
The handle of the color icon you wish to display should be in the cIconHandle field of the ControlButtonContentInfo structure. The handle of the picture you wish to display should be in the picture field of the ControlButtonContentInfo structure. Content type is IconRef . An IconRef value for the icon you wish to display should be provided in the iconRef field of the ControlButtonContentInfo structure. Supported with Mac OS 8.5 and later.