gdkDragMotion(object, dest.window, protocol, x.root, y.root, suggested.action, possible.actions, time)objectdest.windowGdkWindow]  the new destination window, obtained by 
    gdkDragFindWindow.protocolGdkDragProtocol]  the DND protocol in use, obtained by gdkDragFindWindow.x.rooty.rootsuggested.actionGdkDragAction]  the suggested action.possible.actionsGdkDragAction]  the possible actions.time