A Tab contains groups of related controls.
There are three types of Tab in the Ribbon framework.
|Core tab||Core tabs that organize the default functions of the application.|
|Contextual tab||Tabs that are displayed during specific document or workspace states. For example, if a user selects a particular object type, such as an image contained in the header of a table, then various contextual tabs might be displayed that expose both table and image functionality.|
|Modal tab||Core tabs that are displayed during a specific document or workspace application mode, such as print preview.|
The following screen shot shows a core Tab from Windows 7 Paint.
The Ribbon framework defines a collection of property keys for the Tab control.
Typically, a Tab property is updated in the ribbon UI by invalidating the Command associated with the control through a call to the IUIFramework::InvalidateUICommand method. The invalidation event is handled, and the property updates defined, by the IUICommandHandler::UpdateProperty callback method.
The IUICommandHandler::UpdateProperty callback method is not executed, and the application queried for an updated property value, until the property is required by the framework. For example, when a tab is activated and a control revealed in the ribbon UI, or when a tooltip is displayed.
The following table lists the property keys that are associated with the Tab control.
|UI_PKEY_Label||Can only be updated through invalidation.|
|UI_PKEY_Keytip||Can only be updated through invalidation.|
|UI_PKEY_TooltipDescription||Can only be updated through invalidation.|
|UI_PKEY_TooltipTitle||Can only be updated through invalidation.|