XContextualDrawing man page on BSDi

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XFontsOfFontSet(3X11)	XLIB FUNCTIONS	  XFontsOfFontSet(3X11)

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

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

       char *XBaseFontNameListOfFontSet(font_set)
	     XFontSet font_set;

       char *XLocaleOfFontSet(font_set)
	     XFontSet font_set;

       Bool XContextDependentDrawing(font_set)
	     XFontSet font_set;

       Bool XContextualDrawing(font_set)
	     XFontSet font_set;

       Bool XDirectionalDependentDrawing(font_set)
	     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-ter-
       minated, 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
       properties, font ID, or direction hint for the font for
       the character.  The client may access the XFontStruct list
       to obtain these values for all the fonts currently in use.

X Version 11		Release 6.4				1

XFontsOfFontSet(3X11)	XLIB FUNCTIONS	  XFontsOfFontSet(3X11)

       Xlib does not guarantee that fonts are loaded from the
       server at the creation of an XFontSet.  Xlib may choose to
       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 proper-
       ties 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 modi-
       fied by Xlib.

       The XBaseFontNameListOfFontSet function returns the origi-
       nal 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
       properties 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-termi-
       nated 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		Release 6.4				2

XFontsOfFontSet(3X11)	XLIB FUNCTIONS	  XFontsOfFontSet(3X11)

SEE ALSO
       XCreateFontSet(3X11), XCreateOM(3X11), XCreateOC(3X11),
       XExtentsOfFontSet(3X11), XFontSetExtents(3X11)
       Xlib - C Language X Interface

X Version 11		Release 6.4				3

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