BCGControlBar Pro for MFC
HWND CBCGPAppBarWnd::GetAutoHideBar ( UINT  uEdge)

Retrieve a handle to an autohide application bar associated with an edge of the screen.

Returns
Returns the handle to the autohide application bar. The return value is NULL if an error occurs or if no autohide application bar is associated with the specified edge.

A wrapper function for the ABM_GETAUTOHIDEBAR message. Calls the SHAppBarMessage function to retrieve the handle to the autohide application bar associated with an edge of the screen.

uEdge should be one of the following values ABE_TOP, ABE_BOTTOM, ABE_LEFT, or ABE_RIGHT.

Parameters
uEdgeSpecifies the edge of the screen the system application bar should be docked to.