BCGControlBar Pro for MFC
void CBCGPCaptionBar::SetImageToolTip ( LPCTSTR  lpszToolTip,
LPCTSTR  lpszDescription = NULL 
)

Call this method to set a tooltip for the image.

Use this method to set a tooltip for the caption bar image. The tooltip may consist of tooltip caption and description.

Parameters
lpszToolTipSpecifies tooltip caption text.
lpszDescriptionSpecifies tooltip description.