BCGControlBar Pro for MFC
void CBCGPRibbonBackstageViewItemForm::SetWaterMarkImage ( UINT  uiWaterMarkResID,
COLORREF  clrBase = (COLORREF)-1 
)

Sets watermark image.

Use this method to set a watermark image to be drawn on dialog's background.

Parameters
uiWaterMarkResIDSpecifies a resource ID of watermark image.
clrBaseSpecifies base color of watermark image. This color is used to modify image colors according to application's color theme.