###User Defined Function###
_GUICtrlHeader_GetBitmapMargin

###Description###
Retrieves the width of the bitmap margin

###Syntax###
#include <GuiHeader.au3>
_GUICtrlHeader_GetBitmapMargin ( $hWnd )


###Parameters###
@@ParamTable@@
$hWnd
	Handle to the control
@@End@@

###ReturnValue###
@@ReturnTable@@
Success:	The width of the bitmap margin in pixels. If the bitmap margin was not previously specified, the default value of 3 * GetSystemMetrics(SM_CXEDGE) is returned.
Failure:	0.
@@End@@


###Remarks###
None.


###Related###
_GUICtrlHeader_SetBitmapMargin


###Example###
@@IncludeExample@@
