SHAppBarMessage info Overview Group

Sends an appbar message to the system.

WINSHELLAPI UINT APIENTRY SHAppBarMessage(

Parameters

dwMessage

Identifier of the appbar message to send. This parameter can be one of the following values:

ABM_ACTIVATE	Notifies the system that an appbar has been activated.
ABM_GETAUTOHIDEBAR	Retrieves the handle of the autohide appbar associated with a particular edge of the screen.
ABM_GETSTATE	Retrieves the autohide and always-on-top states of the Windows taskbar.
ABM_GETTASKBARPOS	Retrieves the bounding rectangle of the Windows taskbar.
ABM_NEW	Registers a new appbar and specifies the message identifier that the system should use to send notification messages to the appbar.
ABM_QUERYPOS	Requests a size and screen position for an appbar.
ABM_REMOVE	Unregisters an appbar, removing bar from the system’s internal list.
ABM_SETAUTOHIDEBAR	Registers or unregisters an autohide appbar for an edge of the screen.
ABM_SETPOS	Sets the size and screen position of an appbar.
ABM_WINDOWPOSCHANGED	Notifies the system when an appbar’s position has changed.

pData

Pointer to an APPBARDATA structure. The content of the structure depends on the value of dwMessage.

Returns a message-dependent value. For more information, see the documentation for the individual appbar messages.