BCGControlBar Pro for MFC
void CBCGPTasksPane::SetHorzMargin ( int  n = -1)
inline

Sets horizontal spacing between a task pane (which is a list of groups) and edges of client area.

Use this function to customize the margins of the task pane elements. If n = -1 then this parameter is ignored and the margin value is specified by the visual manager. The default margin (in visual manager) is 12 pixels.

Parameters
nSpecifies the new margin value.