| XmbDrawText(3) | Library Functions Manual | XmbDrawText(3) | 
NAME
 XmbDrawText, XwcDrawText, Xutf8DrawText - draw text using multiple font sets
SYNTAX
void XmbDrawText(Display *display, Drawable d, GC  gc, int x, int y, XmbTextItem *items, int  nitems);
void XwcDrawText(Display *display, Drawable d, GC  gc, int x, int y, XwcTextItem *items, int  nitems);
void Xutf8DrawText(Display *display, Drawable d, GC  gc, int x, int y, XmbTextItem *items, int nitems);
 
ARGUMENTS
- 
d
- 
Specifies the drawable.
- 
display
- 
Specifies the connection to the X server.
- 
gc
- 
Specifies the GC.
- 
items
- 
Specifies an array of text items.
- 
nitems
- 
Specifies the number of text items in the array.
- 
x
- 
  
- 
y
- 
Specify the x and y coordinates.
 
DESCRIPTION
 The  
XmbDrawText,  
XwcDrawText and  
Xutf8DrawText functions allow complex spacing and font set shifts between text strings. Each text item is processed in turn, with the origin of a text element advanced in the primary draw direction by the escapement of the previous text item. A text item delta specifies an additional escapement of the text item drawing origin in the primary draw direction. A font_set member other than  
None in an item causes the font set to be used for this and subsequent text items in the text_items list. Leading text items with a font_set member set to  
None will not be drawn.
XmbDrawText,  XwcDrawText and  Xutf8DrawText do not perform any context-dependent rendering between text segments. Clients may compute the drawing metrics by passing each text segment to  XmbTextExtents,  XwcTextExtents,  Xutf8TextExtents or  XmbTextPerCharExtents,  XwcTextPerCharExtents.  Xutf8TextPerCharExtents. When the  XFontSet has missing charsets, each unavailable character is drawn with the default string returned by  XCreateFontSet. The behavior for an invalid codepoint is undefined.
The function  Xutf8DrawText is an extension introduced by The XFree86 Project, Inc. in their 4.0.2 release. Its presence is indicated by the macro  X_HAVE_UTF8_STRING.
 
STRUCTURES
 The  
XmbTextItem structure contains:
typedef struct {
        char *chars;    /* pointer to string */
        int nchars;     /* number of bytes */
        int delta;      /* pixel delta between strings */
        XFontSet font_set;      /* fonts, None means don't change */
} XmbTextItem;
 
The  
XwcTextItem structure contains:
typedef struct {
        wchar_t *chars; /* pointer to wide char string */
        int nchars;     /* number of wide characters */
        int delta;      /* pixel delta between strings */
        XFontSet font_set;      /* fonts, None means don't change */
} XwcTextItem;
 
 
SEE ALSO
 XDrawImageString(3), XDrawString(3), XDrawText(3), XmbDrawImageString(3), XmbDrawString(3)
 
Xlib - C Language X Interface