XmbDrawText(3) XLIB FUNCTIONS 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

X Version 11 libX11 1.8.10 XmbDrawText(3)