XmSetProtocolHooks — A VendorShell function that allows preactions and postactions to be executed when a

XmSetProtocolHooks  is  used  by  shells  that  want  to  have preactions and postactions executed when a
       protocol message is received from MWM.  Since there is no  guaranteed  ordering  in  execution  of  event
       handlers  or callback lists, this allows the shell to control the flow while leaving the protocol manager
       structures opaque.

       XmSetWMProtocolHooks is a convenience interface.  It calls XmSetProtocolHooks 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

       prehook   Specifies the procedure to call before calling entries on the client callback list

       pre_closure
                 Specifies the client data to be passed to the prehook when it is invoked

       posthook  Specifies the procedure to call after calling entries on the client callback list

       post_closure
                 Specifies the client data to be passed to the posthook when it is invoked

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

XmSetProtocolHooks  — A VendorShell function that allows preactions and postactions to be executed when a
       protocol message is received from MWM "XmSetProtocolHooks" "VendorShell  functions"  "XmSetProtocolHooks"
       "protocols"

VendorShell(3), XmInternAtom(3), and XmSetWMProtocolHooks(3).

                                                                                           XmSetProtocolHooks(3)

       #include <Xm/Xm.h>
       #include <Xm/Protocols.h>
       voidXmSetProtocolHooks(
       Widgetshell,
       Atomproperty,
       Atomprotocol,
       XtCallbackProcprehook,
       XtPointerpre_closure,
       XtCallbackProcposthook,
       XtPointerpost_closure);