XFontSetExtents(3)

1XFontSetExtents(3)              XLIB FUNCTIONS              XFontSetExtents(3)
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NAME

6       XFontSetExtents - XFontSetExtents structure
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STRUCTURES

9       The XFontSetExtents structure contains:
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11       typedef struct {
12               XRectangle max_ink_extent;      /* over all drawable characters */
13               XRectangle max_logical_extent;  /* over all drawable characters */
14       } XFontSetExtents;
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16       The XRectangle structures used to return font set metrics are the usual
17       Xlib screen-oriented rectangles with x, y giving the upper left corner,
18       and width and height always positive.
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20       The max_ink_extent member gives the maximum extent, over all drawable
21       characters, of the rectangles that bound the character glyph image
22       drawn in the foreground color, relative to a constant origin.  See Xmb‐
23       TextExtents and XwcTextExtents for detailed semantics.
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25       The max_logical_extent member gives the maximum extent, over all draw‐
26       able characters, of the rectangles that specify minimum spacing to
27       other graphical features, relative to a constant origin.  Other graphi‐
28       cal features drawn by the client, for example, a border surrounding the
29       text, should not intersect this rectangle.  The max_logical_extent mem‐
30       ber should be used to compute minimum interline spacing and the minimum
31       area that must be allowed in a text field to draw a given number of
32       arbitrary characters.
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34       Due to context-dependent rendering, appending a given character to a
35       string may change the string's extent by an amount other than that
36       character's individual extent.
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NAME

STRUCTURES

SEE ALSO