Exposes methods to enable and query translucency effects in a deskband object.

IDeskBand2 Members

CanRenderComposited	Indicates the deskband's ability to be displayed as translucent.
CloseDW	Notifies the docking window object that it is about to be removed from the frame. The docking window object should save any persistent information at this time.
GetBandInfo	Gets state information for a band object.
GetCompositionState	Gets the composition state.
ResizeBorderDW	Notifies the docking window object that the frame's border space has changed. In response to this method, the IDockingWindow implementation must call IDockingWindowSite::SetBorderSpaceDW, even if no border space is required or a change is not necessary.
SetCompositionState	Sets the composition state.
ShowDW	Instructs the docking window object to show or hide itself.

Remarks

IDeskBand2 is derived from IOleWindow through IDockingWindow and IDeskBand. See the following topics for details on these methods also available to IDeskBand2 through that inheritance.

Additional IDeskBand2 Methods
IDeskBand2::GetWindow
IDeskBand2::ContextSensitiveHelp

If implemented in all active deskbands, this interface allows the taskbar to be displayed using translucent effects. If an active deskband does not implement IDeskBand2, then translucency is disabled for the entire taskbar.

A deskband can implement IDeskBand2 as a communication conduit between itself and the taskbar as follows:

• Taskbar calls IDeskBand2::CanRenderComposited to learn if a deskband supports translucency. If one or more do not, the entire taskbar is rendered opaque.
• Taskbar calls IDeskBand2::SetCompositionState as appropriate in response to a user turning translucent effects on or off. The taskbar should attempt to render itself translucent or opaque in response to this call.
• IDeskBand2::GetCompositionState is the counterpart of IDeskBand2::SetCompositionState.

Interface Information

Minimum DLL Version	shell32.dll
Custom Implementation	No
Inherits from	IDeskBand
Header and IDL files	shobjidl.h, shobjidl.idl
Minimum operating systems	Windows Vista