DragRegion
fDragRegion->MouseDown(fDragRegion->DragRegion().LeftTop());
TDragRegion* DragRegion() const { return fDragRegion; }
&& fBarView->IsHidden() && !fBarView->DragRegion()->IsDragging();
fBarView->DragRegion()->CalculateRegions();
&& fBarView->IsHidden() && !fBarView->DragRegion()->IsDragging();
- fBarView->DragRegion()->Frame().Width() - 1
BRect dragRegion(DragRegion());
BRect dragRegion(DragRegion());
Invalidate(DragRegion());
Invalidate(DragRegion());
BRect DragRegion() const;