protected override bool OnMotionNotifyEvent(Gdk.EventMotion evnt)
{
if (!EventInGripWindow(evnt))
{
return(false);
}
if (InPreDrag)
{
if (Drag.CheckThreshold(this, startX, startY,
(int)evnt.X, (int)evnt.Y))
{
DockObjectFlags &= ~(DockObjectFlags.InPreDrag);
dragoffX = startX;
dragoffY = startY;
StartDrag();
}
}
if (!InDrag)
{
return(false);
}
int newX = (int)evnt.XRoot;
int newY = (int)evnt.YRoot;
OnDragMotion(newX, newY);
DockItemMotionHandler handler = DockItemMotion;
if (handler != null)
{
handler(this, newX, newY);
}
return(true);
}