DOKK / manpages / debian 10 / libmotif-dev / XmAddProtocolCallback.3.en
XmAddProtocolCallback(3) Library Functions Manual XmAddProtocolCallback(3)

XmAddProtocolCallback — A VendorShell function that adds client callbacks for a protocol "XmAddProtocolCallback" "VendorShell functions" "XmAddProtocolCallback" "protocols"

#include <Xm/Protocols.h>
void XmAddProtocolCallback(
Widget shell,
Atom property,
Atom protocol,
XtCallbackProc callback,
XtPointer closure);

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.

Specifies the widget with which the protocol property is associated
Specifies the protocol property
Specifies the protocol Atom
Specifies the procedure to call when a protocol message is received
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(3).

VendorShell(3), XmAddWMProtocolCallback(3), XmInternAtom(3), and XmRemoveProtocolCallback(3).