Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   44335 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

EZ_AddEventHandler(3)		EZWGL Functions		 EZ_AddEventHandler(3)

NAME
       EZ_AddEventHandler,EZ_RemoveEventHandler,  EZ_RemoveAllEventHandlers  -
       register/remove event handlers associated to a widget

SYNOPSIS
       #include <EZ.h>

       void EZ_AddEventHandler( EZ_Widget*widget,
	       EZ_EventHandler handler, void *clientdata, int location)
       void EZ_AddEventHandler00( EZ_Widget*widget,
	       EZ_EventHandler handler, void *clientdata, int location)
       void EZ_AddEventHandlerAll( EZ_Widget*widget,
	       EZ_EventHandler handler, void *clientdata, int location)
       void EZ_RemoveEventHandler( EZ_Widget*widget,
				EZ_EventHandler handler, void *clientdata)
       void EZ_RemoveEventHandler00( EZ_Widget*widget,
				EZ_EventHandler handler, void *clientdata)
       void EZ_RemoveAllEventHandlers( EZ_Widget *widget)
       void EZ_RemoveAllEventHandlers00( EZ_Widget *widget)

ARGUMENTS
       widget  Specifies an EZ widget.

       handler	Specifies an event handler.

       clientdata  Specifies a clientdata to be passed to the event handler.

       location	 Specifies when the event handler is to be called relative  to
       other previously registered handlers

DESCRIPTION
       An event handler is a procedure of the following prototype:

       void(*handler)(void *object, void *data, int etype, XEvent *event)

       EZ_AddEventHandler  registers an event handler to a widget. If location
       is 0, the event handler will be put in front of all  previously	regis‐
       tered  event  handlers.	If  location  is  1, the event handler will be
       inserted at the end of all previousely registered event handlers.

       For composite widget, EZ_AddEventHandler inserts the event  handler  to
       the  most  relevent  internal  widget.  To  add an event handler to the
       toplevel frame of a composite widget, use EZ_AddEventHandler00.

       EZ_AddEventHandlerAll registers an event handler to widget and all  its
       descendants.

       EZ_RemoveEventHandler  deletes  an  event  handler. The specified event
       handler will be deleted only if both the procedure and the client  data
       match.

       For composite widget, EZ_RemoveEventHandler removes the specified event
       handler from the most relevent internal widget. To remove an event han‐
       dler from a composite widget, use EZ_RemoveEventHandler00.

       EZ_RemoveAllEventHandlers  deletes  all	event handlers registered to a
       widget.

       For composite widget, EZ_RemoveAllEventHandlers removes all event  han‐
       dlers  from the most relevent internal widget. To remove all event han‐
       dlers registered to the toplevel	 frame	of  a  composite  widget,  use
       EZ_RemoveAllEventHandlers00.

SEE ALSO
       EZ_AddWidgetCallBack(3)

EZWGL							 EZ_AddEventHandler(3)

Vote for polarhome