XDrawImageString(display, d, gc, x, y, string, length)
      Display *display;
      Drawable d;
      GC gc;
      int x, y;
      char *string;
      int length; 
| 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. | 
| string | Specifies the character string. | 
| length | Specifies the number of characters in the string argument. | 
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.
The function uses these GC components: plane-mask, foreground, background, font, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask.
XDrawImageString() can generate BadDrawable , BadGC , and BadMatch errors.
| 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. |