XtCallAcceptFocus(3Xt) MIT X11R4 XtCallAcceptFocus(3Xt)Name
XtCallAcceptFocus - calla widget's accept_focus procedure
Syntax
Boolean XtCallAcceptFocus(w, time)
Widget w;
Time *time;
Arguments
time Specifies the X time of the event that is causing the accept focus.
w Specifies the widget.
Description
The 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, returns
See AlsoXtSetKeyboardFocus(3Xt)
X Window System Toolkit: The Complete Programmer's Guide and Specification, Paul J. Asente and Ralph Swick
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
XtCallAcceptFocus(3Xt)
Check Out this Related Man Page
accept_focus() accept_focus()
Name
accept_focus - Core class method for accepting or rejecting the keyboard focus.
Synopsis
typedef Boolean (*XtAcceptFocusProc)(Widget, Time *);
Widget w;
Time *time;
Inputs
w Specifies the widget.
time Specifies the X time of the event causing the parent to offer focus to the child.
Returns
True if the child actually took the focus; False otherwise.
Description
The accept_focus() method is registered on the accept_focus field of the Core class part structure and is invoked by XtCallAcceptFocus()
when a parent widget wants to offer keyboard focus to a widget. If the widget wants the keyboard focus, it should take it with the Xlib
function XSetInputFocus() and return True. If the widget does not currently want the focus, it should return False.
The ICCCM requires that a widget use Parent for the revert_to argument to XSetInputFocus().
The accept_focus() method is not chained. If a widget class does not define an accept_focus() method, it can use XtInheritAcceptFocus to
inherit the method from its superclass. If the widget never wants the focus, it should have an accept_focus field of NULL.
Usage
Note that this method is an invitation to take the focus, not notification that focus has changed, and not a command to take the focus.
A widget that needs to know when it loses the focus can specify translations or event handlers for FocusIn and FocusOut events.
None of the Intrinsics or Xaw widget classes define an accept_focus() method, and none of them ever call XtCallAcceptFocus().
An application that wants to direct keyboard events to a particular widget should use XtSetKeyboardFocus().
See AlsoXtCallAcceptFocus(1), XtSetKeyboardFocus(1).
Xt - Intrinsics Methods accept_focus()
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