---
name: "XFontSetExtents"
section: "3x"
platform: "linux"
package: "libx11-dev"
version: "4.3.0.dfsg.1-14sarge7"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/XFontSetExtents/3x"
---

# XFontSetExtents(3x)

XFontSetExtents structure

## NAME

XFontSetExtents - XFontSetExtents structure

## STRUCTURES

The *XFontSetExtents* structure contains:

```
typedef struct {
	XRectangle max_ink_extent;
	XRectangle max_logical_extent;
} XFontSetExtents;

```

The  *XRectangle* structures used to return font set metrics are the usual Xlib screen-oriented  rectangles with x, y giving the upper left corner, and width and height always positive.

The max\_ink\_extent member gives the maximum extent, over all drawable characters, of the rectangles that bound the character glyph image drawn in the foreground color, relative to a constant origin. See  *XmbTextExtents* and *XwcTextExtents* for detailed semantics.

The max\_logical\_extent member gives the maximum extent, over all drawable characters, of the rectangles  that specify minimum spacing to other graphical features, relative to a constant origin. Other graphical features drawn by the client, for example, a border surrounding the text, should not intersect this rectangle. The max\_logical\_extent member should be used to compute minimum  interline spacing and the minimum area that must be allowed in a text field to draw a given number of arbitrary characters.

Due to context-dependent rendering, appending a given character to a string may change  the string's extent by an amount other than that character's individual extent.

## SEE ALSO

XCreateFontSet(3X11), XExtentsOfFontSet(3X11), XFontsOfFontSet(3X11)\
 *Xlib - C Language X Interface*