DtDndDropUnregister

library call

`DtDndDropUnregister`

deactivate a drop site

    #include <Dt/Dnd.h>

    void DtDndDropUnregister
    Widget dropSite

## DESCRIPTION

The `DtDndDropUnregister` function removes the widget, dropSite, from the set of drop sites that have been registered with &cdeman.DtDndDropRegister; and frees data allocated by a call to &cdeman.DtDndDropRegister;.

The `DtDndDropUnregister` function is used to unregister a widget when it is no longer a drop site. A widget can be unregistered with `DtDndDropUnregister` at any time after it has been registered with &cdeman.DtDndDropRegister;.

## RETURN VALUE

The `DtDndDropUnregister` function returns no value.

## SEE ALSO

&cdeman.Dt.Dnd.h;, &cdeman.DtDndDropRegister;, DtDndVaDropRegister; `XmDropSite`, `XmDropSiteRegister`, `XmDropSiteUnregister` in the &str-ZM;. ]]>