BCGControlBar Pro for MFC
virtual void CBCGPGridCtrl::OnFillLeftOffset ( CDC *  pDC,
CRect  rectFill,
CBCGPGridRow pRow,
BOOL  bDrawRightBorder = TRUE 

Called by the framework when it needs to draw the left margin area of the grid control.

Override in a derived class in order to customize the appearance of the left margin area.

pDCPointer to a device context
rectFillSpecifies the bounding rectangle of the left margin area for the specified row.
pRowPointer to the grid row
bDrawRightBorderIf TRUE, the function should draws the right border.