Manual Pages for UNIX Operating System command usage for man XContextDependentDrawing

XLIB FUNCTIONS                              XFontsOfFontSet(3x11)



NAME
     XFontsOfFontSet, XBaseFontNameListOfFontSet, XLocaleOf-
     FontSet, XContextDependentDrawing, XContextualDrawing,
     XDirectionalDependentDrawing - obtain fontset information

SYNTAX
     cc [ flag... ] file... -lX11 [ library... ]

     int XFontsOfFontSet(XFontSet font_set, XFontStruct
          ***font_struct_list_return, char
          ***font_name_list_return);

     char *XBaseFontNameListOfFontSet(XFontSet font_set);

     char *XLocaleOfFontSet(XFontSet font_set);

     Bool XContextDependentDrawing(XFontSet font_set);

     Bool XContextualDrawing(XFontSet font_set);

     Bool XDirectionalDependentDrawing(XFontSet font_set);

ARGUMENTS
     font_set  Specifies the font set.

     font_name_list_return
               Returns the list of font names.

     font_struct_list_return
               Returns the list of font structs.

DESCRIPTION
     The XFontsOfFontSet function returns a list of one or more
     XFontStructs and font names for the fonts used by the Xmb
     and Xwc layers for the given font set.  A list of pointers
     to the XFontStruct structures is returned to
     font_struct_list_return.  A list of pointers to null-
     terminated, fully specified font name strings in the locale
     of the font set is returned to font_name_list_return.  The
     font_name_list order corresponds to the font_struct_list
     order.  The number of XFontStruct structures and font names
     is returned as the value of the function.

     Because it is not guaranteed that a given character will be
     imaged using a single font glyph, there is no provision for
     mapping a character or default string to the font proper-
     ties, font ID, or direction hint for the font for the char-
     acter.  The client may access the XFontStruct list to obtain
     these values for all the fonts currently in use.

     Xlib does not guarantee that fonts are loaded from the
     server at the creation of an XFontSet.  Xlib may choose to



X Version 11        Last change: libX11 1.3.5                   1






XLIB FUNCTIONS                              XFontsOfFontSet(3x11)



     cache font data, loading it only as needed to draw text or
     compute text dimensions.  Therefore, existence of the
     per_char metrics in the XFontStruct structures in the
     XFontStructSet is undefined.  Also, note that all properties
     in the XFontStruct structures are in the STRING encoding.

     The XFontStruct and font name lists are owned by Xlib and
     should not be modified or freed by the client.  They will be
     freed by a call to XFreeFontSet with the associated
     XFontSet.  Until freed, their contents will not be modified
     by Xlib.

     The XBaseFontNameListOfFontSet function returns the original
     base font name list supplied by the client when the XFontSet
     was created.  A null-terminated string containing a list of
     comma-separated font names is returned as the value of the
     function.  White space may appear immediately on either side
     of separating commas.

     If XCreateFontSet obtained an XLFD name from the font pro-
     perties for the font specified by a non-XLFD base name, the
     XBaseFontNameListOfFontSet function will return the XLFD
     name instead of the non-XLFD base name.

     The base font name list is owned by Xlib and should not be
     modified or freed by the client.  It will be freed by a call
     to XFreeFontSet with the associated XFontSet.  Until freed,
     its contents will not be modified by Xlib.

     The XLocaleOfFontSet function returns the name of the locale
     bound to the specified XFontSet, as a null-terminated
     string.

     The returned locale name string is owned by Xlib and should
     not be modified or freed by the client.  It may be freed by
     a call to XFreeFontSet with the associated XFontSet.  Until
     freed, it will not be modified by Xlib.

     The XContextDependentDrawing function returns True if the
     drawing functions implement implicit text directionality or
     if text drawn with the font_set might include context-
     dependent drawing; otherwise, it returns False.

     The XContextualDrawing function returns True if text drawn
     with the font set might include context-dependent drawing;
     otherwise, it returns False.

     The XDirectionalDependentDrawing function returns True if
     the drawing functions implement implicit text directional-
     ity; otherwise, it returns False.





X Version 11        Last change: libX11 1.3.5                   2






XLIB FUNCTIONS                              XFontsOfFontSet(3x11)



SEE ALSO
     XCreateFontSet(3x11), XCreateOM(3x11), XCreateOC(3x11),
     XExtentsOfFontSet(3x11), XFontSetExtents(3x11)
     Xlib - C Language X Interface


ATTRIBUTES
     See attributes(5) for descriptions of the following attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | x11/library/libx11          |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | See XInitThreads(3X11)      |
    |_____________________________|_____________________________|




































X Version 11        Last change: libX11 1.3.5                   3