---
name: "XmCreateErrorDialog"
section: "3"
platform: "linux"
package: "openmotif"
version: "2.3.8-4"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/XmCreateErrorDialog"
---

# XmCreateErrorDialog(3)

The MessageBox ErrorDialog convenience creation function

## NAME

**XmCreateErrorDialog** — The MessageBox ErrorDialog convenience creation function

## SYNOPSIS

```
#include <Xm/MessageB.h>
Widget XmCreateErrorDialog(
Widget parent,
String name,
ArgList arglist,
Cardinal argcount);
```

## DESCRIPTION

**XmCreateErrorDialog** is a convenience creation function that creates a DialogShell and an unmanaged MessageBox child of the DialogShell. An ErrorDialog warns the user of an invalid or potentially dangerous condition. It includes a symbol, a message, and three buttons. The default symbol is an octagon with a diagonal slash. The default button labels are **OK**, **Cancel**, and **Help**.

Use **XtManageChild** to pop up the ErrorDialog (passing the MessageBox as the widget parameter); use **XtUnmanageChild** to pop it down.

**XmCreateErrorDialog** forces the value of the Shell resource **XmNallowShellResize** to True.

- *parent*

  Specifies the parent widget ID

- *name*

  Specifies the name of the created widget

- *arglist*

  Specifies the argument list

- *argcount*

  Specifies the number of attribute/value pairs in the argument list (*arglist*)

For a complete definition of MessageBox and its associated resources, see [**XmMessageBox**(3)](/XmMessageBox/3.md).

## RETURN

Returns the MessageBox widget ID.

## RELATED

[**XmMessageBox**(3)](/XmMessageBox/3.md).