NAME
XDrawImageString, XDrawImageString16 - draw image text
SYNTAX
int XDrawImageString(Display *display, Drawable d, GC gc, int x, int y,
char *string, int length);
int XDrawImageString16(Display *display, Drawable d, GC gc, int x, int
y, XChar2b *string, int length);
ARGUMENTS
d Specifies the drawable.
display Specifies the connection to the X server.
gc Specifies the GC.
length Specifies the number of characters in the string argument.
string Specifies the character string.
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.
DESCRIPTION
The XDrawImageString16 function is similar to XDrawImageString except
that it uses 2-byte or 16-bit characters. Both functions also use both
the foreground and background pixels of the GC in the destination.
The effect is first to fill a destination rectangle with the background
pixel defined in the GC and then to paint the text with the foreground
pixel. The upper-left corner of the filled rectangle is at:
[x, y - font-ascent]
The width is:
overall-width
The height is:
font-ascent + font-descent
The overall-width, font-ascent, and font-descent are as would be
returned by XQueryTextExtents using gc and string. The function and
fill-style defined in the GC are ignored for these functions. The
effective function is GXcopy, and the effective fill-style is
FillSolid.
For fonts defined with 2-byte matrix indexing and used with
XDrawImageString, each byte is used as a byte2 with a byte1 of zero.
Both functions use these GC components: plane-mask, foreground,
background, font, subwindow-mode, clip-x-origin, clip-y-origin, and
clip-mask.
XDrawImageString and XDrawImageString16 can generate BadDrawable,
BadGC, and BadMatch errors.
DIAGNOSTICS
BadDrawable
A value for a Drawable argument does not name a defined
Window or Pixmap.
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
XDrawString(3), XDrawText(3), XLoadFont(3), XTextExtents(3)
Xlib - C Language X Interface