XDrawImageString(3) XLIB FUNCTIONS XDrawImageString(3)
XDrawImageString, XDrawImageString16 - draw image text
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);
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.
y Specify the x and y coordinates, which are relative to the
origin of the specified drawable and define the origin of the
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:
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 Fill-
For fonts defined with 2-byte matrix indexing and used with XDrawIm-
ageString, each byte is used as a byte2 with a byte1 of zero.
Both functions use these GC components: plane-mask, foreground, back-
ground, font, subwindow-mode, clip-x-origin, clip-y-origin, and clip-
XDrawImageString and XDrawImageString16 can generate BadDrawable,
BadGC, and BadMatch errors.
A value for a Drawable argument does not name a defined Win-
dow or Pixmap.
BadGC A value for a GContext argument does not name a defined GCon-
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
XDrawString(3X11), XDrawText(3X11), XLoadFont(3X11), XTextExtents(3X11)
Xlib - C Language X Interface
X Version 11 libX11 1.1.5 XDrawImageString(3)