DOKK / manpages / debian 10 / libxt-dev / XtRegisterGrabAction.3.en
XtRegisterGrabAction(3) XT FUNCTIONS XtRegisterGrabAction(3)

XtRegisterGrabAction - register button and key grabs

void XtRegisterGrabAction(XtActionProc action_proc, Boolean owner_events, unsigned int event_mask, int pointer_mode, int keyboard_mode);

Specifies the action procedure to search for in translation tables.
Specify arguments to XtGrabButton or XtGrabKey

XtRegisterGrabAction adds the specified action_proc to a list known to the translation manager.

X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface

libXt 1.1.5 X Version 11