XmSetProtocolHooks - A VendorShell function that allows pre and post actions to be executed when a protocol message is received from MWM
#include <Xm/Xm.h> #include <Xm/Protocols.h> void XmSetProtocolHooks (shell, property, protocol, prehook, pre_closure, posthook, post_closure) Widget shell; Atom property; Atom protocol; XtCallbackProc prehook; XtPointer pre_closure; XtCallbackProc posthook; XtPointer post_closure; void XmSetWMProtocolHooks (shell, protocol, prehook, pre_closure, posthook, post_closure) Widget shell; Atom protocol; XtCallbackProc prehook; XtPointer pre_closure; XtCallbackProc posthook; XtPointer post_closure;
XmSetProtocolHooks is used by shells that want to have pre and post actions 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.
For a complete definition of VendorShell and its associated resources, see VendorShell(3X).
VendorShell(3X), XmInternAtom(3X), and XmSetWMProtocolHooks(3X).