[This is preliminary documentation and subject to change.]
The MMC_CONTROL_TYPE enumeration type defines the kinds of controls that can appear in the control bar. The values can be used in the nType parameter of the IControlbar::Attach and IControlbar::Create methods.
typedef enum _MMC_CONTROL_TYPE
{
TOOLBAR,
MENUBUTTON,
COMBOBOXBAR // Not implemented
} MMC_CONTROL_TYPE;
IControlbar::Attach, IControlbar::Create