XmAddProtocolCallback(3X)

     NAME
          XmAddProtocolCallback - A VendorShell function that adds
          client callbacks for a protocol

     SYNOPSIS
          #include <Xm/Xm.h>
          #include <Xm/Protocols.h>

          void XmAddProtocolCallback (shell, property, protocol, callback, closure)
               Widget      shell;
               Atom        property;
               Atom        protocol;
               XtCallbackProccallback;
               XtPointer   closure;

          void XmAddWMProtocolCallback (shell, protocol, callback, closure)
               Widget      shell;
               Atom        protocol;
               XtCallbackProccallback;
               XtPointer   closure;

     DESCRIPTION
          XmAddProtocolCallback adds client callbacks for a protocol.
          It checks if the protocol is registered, and if it is not,
          calls XmAddProtocols.  It then adds the callback to the
          internal list.  These callbacks are called when the
          corresponding client message is received.

          XmAddWMProtocolCallback is a convenience interface.  It
          calls XmAddProtocolCallback with the property value set to
          the atom returned by interning WM_PROTOCOLS.

          shell
               Specifies the widget with which the protocol property
               is associated.

          property
               Specifies the protocol property.

          protocol
               Specifies the protocol Atom (or an int type cast to
               Atom).

          callback
               Specifies the procedure to call when a protocol message
               is received.

          closure
               Specifies the client data to be passed to the callback
               when it is invoked.

          For a complete definition of VendorShell and its associated
          resources, see VendorShell(3X).

     RELATED INFORMATION
          VendorShell(3X), XmAddProtocols(3X),
          XmAddWMProtocolCallback(3X), and XmInternAtom(3X).