Specifies the space free out of commandbars. If the dockbar is located horizontally it will be equal the difference between the width of the parent dock bar and the summary width of all command bars without the width of ignored bar. If the dockbar is located vertically the returned value will be equal the difference between the height the parent dock bar and the summary height of all command bars without the height of ignored bar .
Specifies the space free out of command bars. If the dockbar is located horizontally it will be equal the difference between the width of the parent dock bar and the summary width of all command bars. If the dockbar is located vertically the returned value will be equal the difference between the height of the parent dock bar and the summary height of all command bars.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2