auto DoPen = [&](Point p) {
				GuiLock __;
				eventCtrl = this;
				Ctrl *q = this;
				for(Ctrl *t = q; t; t=q->ChildFromPoint(p)) q = t;
				bool b = q->Pen(p, pen, GetMouseFlags());
				SyncCaret();
				Image m = CursorOverride();
				if(IsNull(m)) SetMouseCursor(q->CursorImage(p,GetMouseFlags()));
				else SetMouseCursor(m);
				return b;
			};