Xmdropsiteunregister a drag and drop function that frees drop site information "xmdropsiteunregister" "drag and drop functions" "xmdropsiteunregister"
#include <Xm/DragDrop.h> void XmDropSiteUnregister( Widget widget);
XmDropSiteUnregister informs the toolkit that the specified widget is no longer a registered drop site. The function frees all associated drop site information.
Specifies the ID of the widget, registered as a drop site, that is to be unregistered
For a complete definition of DropSite and its associated resources, see XmDropSite(3).