XmbDrawText(3X11) XLIB FUNCTIONS XmbDrawText(3X11)NAME
XmbDrawText, XwcDrawText, Xutf8DrawText - draw text using
multiple font sets
SYNTAX
void XmbDrawText(display, d, gc, x, y, items, nitems)
Display *display;
Drawable d;
GC gc;
int x, y;
XmbTextItem *items;
int nitems;
void XwcDrawText(display, d, gc, x, y, items, nitems)
Display *display;
Drawable d;
GC gc;
int x, y;
XwcTextItem *items;
int nitems;
void Xutf8DrawText(display, d, gc, x, y, items, nitems)
Display *display;
Drawable d;
GC gc;
int x, 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
X Version 11 Release 6.4 1
XmbDrawText(3X11) XLIB FUNCTIONS XmbDrawText(3X11)
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, Xutf8Tex-
tExtents 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 XFree86 extension intro-
duced in XFree86 4.0.2. 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 ALSOXDrawImageString(3X11), XDrawString(3X11), XDraw-
Text(3X11), XmbDrawImageString(3X11), XmbDrawString(3X11)
Xlib - C Language X Interface
X Version 11 Release 6.4 2