---
name: "XtBuildEventMask"
section: "3x"
platform: "linux"
package: "libxt-dev"
version: "4.3.0.dfsg.1-14sarge7"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/XtBuildEventMask/3x"
---

# XtBuildEventMask(3x)

retrieve a widget's event mask

## NAME

XtBuildEventMask - retrieve a widget's event mask

## SYNTAX

EventMask XtBuildEventMask(Widget *w*);

## ARGUMENTS

- *w*

  Specifies the widget.

## DESCRIPTION

The *XtBuildEventMask* function returns the event mask representing the logical OR of all event masks for event handlers registered on the widget with *XtAddEventHandler* and all event translations, including accelerators, installed on the widget. This is the same event mask stored into the  *XSetWindowAttributes* structure by *XtRealizeWidget* and sent to the server when event handlers and translations are installed or removed on the realized widget.

## SEE ALSO

XtAddEventHandler(3Xt)\
 *X Toolkit Intrinsics - C Language Interface*\
 *Xlib - C Language X Interface*