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XDrawImageString(3)


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



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