| void CBCGPDialog::SetExpandAreaSpecialBackground | ( | BOOL | bSet, | 
| BOOL | bRedraw = TRUE | ||
| ) | 
Specifies whether a dialog expanded area has a special (usually darker) background.
| bSet | TRUE to set. | 
| bRedraw | Specifies whether a dialog should be redrawn. | 
Call EnableExpand() to enable dialog box expanding.