XFontSetExtents(3) XLIB FUNCTIONS XFontSetExtents(3)

# [NAME](#NAME)

XFontSetExtents - XFontSetExtents structure

# [STRUCTURES](#STRUCTURES)

The **XFontSetExtents** structure contains:

```
typedef struct {


        XRectangle max_ink_extent;      /* over all drawable characters */


        XRectangle max_logical_extent;  /* over all drawable characters */
} 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](#SEE_ALSO)

[**XCreateFontSet**(3)](/man/os/libx11/XCreateFontSet.3), [**XExtentsOfFontSet**(3)](/man/os/libx11/XExtentsOfFontSet.3), [**XFontsOfFontSet**(3)](/man/os/libx11/XFontsOfFontSet.3)  
*Xlib - C Language X Interface*

libX11 1.8.14 X Version 11

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Document: XFontSetExtents(3) from libx11 1.8.14-r4 (Chainguard OS)
Source: https://gitlab.freedesktop.org/xorg/lib/libx11.git