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XDrawString, XDrawString16
- draw text characters 
- int XDrawString(Display *display, Drawable
d, GC 
- gc, int x, int y, char *string, int length);  
- int XDrawString16(Display
*display, Drawable d, GC 
- gc, int x, int y, XChar2b *string, int length);
 
Specifies the drawable.  
Specifies the connection to the X server.
Specifies the GC. 
Specifies the number of characters in the string argument.
Specifies the character string. and define the origin of the first character
 
Specify the x and y coordinates, which are relative to the origin of the
specified drawable. 
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. For fonts defined with 2-byte matrix indexing and used with XDrawString16,
  each byte is used as a byte2 with a byte1 of zero. 
Both functions use
these GC components:  function, plane-mask, fill-style, font, subwindow-mode,
clip-x-origin,  clip-y-origin, and clip-mask. They also use these GC mode-dependent
components:  foreground, background, tile, stipple, tile-stipple-x-origin,
 and tile-stipple-y-origin. 
XDrawString   and XDrawString16   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. 
XDrawImageString(3X11)
,
XDrawText(3X11)
, XLoadFont(3X11)
Xlib - C Language X Interface 
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