MirOS Manual: XFreeFontInfo(3), XFreeFontNames(3), XListFonts(3), XListFontsWithInfo(3)


XListFonts(3X11)         XLIB FUNCTIONS          XListFonts(3X11)

NAME

     XListFonts, XFreeFontNames, XListFontsWithInfo, XFreeFon-
     tInfo - obtain or free font names and information

SYNTAX

     char **XListFonts(Display *display, char *pattern, int max-
          names, int *actual_count_return);

     int XFreeFontNames(char *list[]);

     char **XListFontsWithInfo(Display *display, char *pattern,
          int maxnames, int *count_return, XFontStruct
          **info_return);

     int XFreeFontInfo(char **names, XFontStruct *free_info, int
          actual_count);

ARGUMENTS

     actual_count
               Specifies the actual number of font names.

     actual_count_return
               Returns the actual number of font names.

     count_return
               Returns the actual number of matched font names.

     display   Specifies the connection to the X server.

     info_return
               Returns the font information.

     free_info Specifies the font information.

     list      Specifies the array of strings you want to free.

     maxnames  Specifies the maximum number of names to be
               returned.

     names     Specifies the list of font names.

     pattern   Specifies the null-terminated pattern string that
               can contain wildcard characters.

DESCRIPTION

     The XListFonts function returns an array of available font
     names (as controlled by the font search path; see XSet-
     FontPath) that match the string you passed to the pattern
     argument. The pattern string can contain any characters, but

XFree86                   Version 4.5.0                         1

XListFonts(3X11)         XLIB FUNCTIONS          XListFonts(3X11)

     each asterisk (*) is a wildcard for any number of charac-
     ters, and each question mark (?) is a wildcard for a single
     character. If the pattern string is not in the Host Portable
     Character Encoding, the result is implementation-dependent.
     Use of uppercase or lowercase does not matter. Each returned
     string is null-terminated. If the data returned by the
     server is in the Latin Portable Character Encoding, then the
     returned strings are in the Host Portable Character Encod-
     ing. Otherwise, the result is implementation-dependent. If
     there are no matching font names, XListFonts returns NULL.
     The client should call XFreeFontNames when finished with the
     result to free the memory.

     The XFreeFontNames function frees the array and strings
     returned by XListFonts or XListFontsWithInfo.

     The XListFontsWithInfo function returns a list of font names
     that match the specified pattern and their associated font
     information. The list of names is limited to size specified
     by maxnames. The information returned for each font is
     identical to what XLoadQueryFont would return except that
     the per-character metrics are not returned. The pattern
     string can contain any characters, but each asterisk (*) is
     a wildcard for any number of characters, and each question
     mark (?) is a wildcard for a single character. If the pat-
     tern string is not in the Host Portable Character Encoding,
     the result is implementation-dependent. Use of uppercase or
     lowercase does not matter. Each returned string is null-
     terminated. If the data returned by the server is in the
     Latin Portable Character Encoding, then the returned strings
     are in the Host Portable Character Encoding. Otherwise, the
     result is implementation-dependent. If there are no matching
     font names, XListFontsWithInfo returns NULL.

     To free only the allocated name array, the client should
     call XFreeFontNames. To free both the name array and the
     font information array or to free just the font information
     array, the client should call XFreeFontInfo.

     The XFreeFontInfo function frees a font structure or an
     array of font structures and optionally an array of font
     names. If NULL is passed for names, no font names are freed.
     If a font structure for an open font (returned by XLoad-
     QueryFont) is passed, the structure is freed, but the font
     is not closed; use XUnloadFont to close the font.

SEE ALSO

     XLoadFont(3X11), XSetFontPath(3X11)
     Xlib - C Language X Interface

XFree86                   Version 4.5.0                         2

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