BCGControlBar Pro for MFC
virtual void CBCGPVisualManager::OnDrawStatusBarSizeBox ( CDC *  pDC,
CBCGPStatusBar pStatBar,
CRect  rectSizeBox 

Called by the framework to display the status bar size box.

pDCA pointer to a device context.
pStatBarA pointer to a status bar whose size box is being drawn.
rectSizeBoxThe bounding rectangle of the size box.