GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  XTCALLCALLBACKS (3)

NAME

XtCallCallbacks, XtCallCallbackList, XtHasCallbacks - process callbacks

CONTENTS

Syntax
Arguments
Description

SYNTAX

void XtCallCallbacks(Widget w, String callback_name, XtPointer call_data);
void XtCallCallbackList(Widget w, XtCallbackList callbacks, XtPointer call_data);
typedef enum {XtCallbackNoList, XtCallbackHasNone, XtCallbackHasSome} XtCallbackStatus;
XtCallbackStatus XtHasCallbacks(Widget w, String callback_name);

ARGUMENTS

callback_name Specifies the callback list to be executed or checked.
call_data Specifies a callback-list specific data value to pass to each of the callback procedure in the list.
callbacks Specifies the callback list to be executed.
w Specifies the widget.

DESCRIPTION

The XtCallCallbacks function calls each procedure that is registered in the specified widget’s callback list.

If callbacks is not NULL, XtCallCallbackList calls each of the callback procedures in the list, passing client data and call_data. The callbacks parameter must specify the contents of a widget or object resource declared with representation type XtRCallback.

The XtHasCallbacks function first checks to see if the widget has a callback list identified by callback_name. If the callback list does not exist, XtHasCallbacks returns XtCallbackNoList. If the callback list exists but is empty, it returns XtCallbackHasNone. If the callback list exists and has at least one callback registered, it returns XtCallbackHasSome.

SEE ALSO

XtAddCallback(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
Search for    or go to Top of page |  Section 3 |  Main Index


X Version 11 XTCALLCALLBACKS (3) libXt 1.1.5

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.