XtCallAcceptFocus - calla widget's accept_focus procedure
#include <X11/Intrinsic.h>
Boolean XtCallAcceptFocus(Widget w, Time *time);
Specifies the X time of the event that is causing the accept focus.
Specifies the widget.
The XtCallAcceptFocus function calls the specified widget's accept_focus procedure, passing it the specified widget and time, and returns what the accept_focus procedure returns. If accept_focus is NULL, XtCallAcceptFocus returns False.
XtSetKeyboardFocus(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface