BCGControlBar Pro for MFC
void CBCGPCaptionBar::SetImageList ( UINT  nResID,
int  nImageIndex = 0,
const CSize &  sizeImage = CSize(16, 16),
BarElementAlignment  bmpAlignment = ALIGN_RIGHT 
)

Set the image strip for the caption bar. You can use only one icon from this list at a time.

Parameters
nResIDSpecifies the ID of the image list resource.
nImageIndexZero-based index of the current icon.
sizeImageSpecifies the icon size (in pixels).
bmpAlignmentSpecifies the alignment of the icon.