XDrawText16
Syntax
XDrawText16(display, d, gc, x, y, items, nitems)
Display *display;
Drawable d;
GC gc;
int x, y;
XTextItem16 *items;
int nitems;
Arguments
| display
| Specifies the connection to the X server.
|
| d
| Specifies the drawable.
|
| gc
| Specifies the GC.
|
x
y
| Specify the x and y coordinates, which are relative to the origin of the specified drawable and define the origin of the first character.
|
| items
| Specifies an array of text items.
|
| nitems
| Specifies the number of text items in the array.
|
Description
The
XDrawText16()
function is similar to
XDrawText()
except that it uses 2-byte or 16-bit characters.
Both functions allow complex spacing and font shifts between counted strings.
Each text item is processed in turn.
A font member other than
None
in an item causes the font to be stored in the GC
and used for subsequent text.
A text element delta specifies an additional change
in the position along the x axis before the string is drawn.
The delta is always added to the character origin
and is not dependent on any characteristics of the font.
Each character image, as defined by the font in the GC, is treated as an
additional mask for a fill operation on the drawable.
The drawable is modified only where the font character has a bit set to 1.
If a text item generates a
BadFont
error, the previous text items may have been drawn.
For fonts defined with linear indexing rather than 2-byte matrix indexing,
each
XChar2b
structure is interpreted as a 16-bit number with byte1 as the
most-significant byte.
The function uses these GC components:
function,
plane-mask,
fill-style,
font,
subwindow-mode,
clip-x-origin,
clip-y-origin, and
clip-mask.
It also uses these GC mode-dependent components:
foreground,
background,
tile,
stipple,
tile-stipple-x-origin,
and
tile-stipple-y-origin.
XDrawText16()
can generate
BadDrawable ,
BadFont ,
BadGC ,
and
BadMatch
errors.
Diagnostics
| BadDrawable
| A value for a Drawable argument does not name a
defined Window or Pixmap.
|
| BadFont
| A value for a font argument does not name a defined font (or, in some cases,
GContext).
|
| BadGC
| A value for a GContext
argument does not name a defined
GContext.
|
| BadMatch
| An
InputOnly
window is used as a Drawable.
|
| BadMatch
| Some argument or pair of arguments has the correct type and range but fails
to match in some other way required by the request.
|
See also
XDrawText(),
XDrawImageString(),
XLoadFont(),
XDrawString(),
"
Drawing Complex Text".
Christophe Tronche, [email protected]
