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

# XmTabSetValue(3)

A convenience function that sets a tab stop

## NAME

**XmTabSetValue** — A convenience function that sets a tab stop

## SYNOPSIS

```
#include <Xm/Xm.h>
void XmTabSetValue(
XmTab tab,
float value);
```

## DESCRIPTION

**XmTabSetValue** sets the *value* field of the **XmTab** structure associated with *tab*.

- *tab*

  Specifies the tab to set the value of.

- *value*

  Specifies the floating point number which represents the distance that the rendering of the **XmString** segment associated with *tab* will be offset. The offset is from either the beginning of the rendering or from the previous tab stop, depending on the setting for the *offset* model. The distance depends on the tab's unit type. Note that negative values are not permitted, and that if a tab stop would cause text to overlap, the x position for the segment is set immediately after the end of the previous segment.

## RELATED

See also the *Motif Programmer's Guide* for more information about tabs and tab lists. [**XmTab**(3)](/XmTab/3.md).