graphics.hlp (Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
_setwritemode
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  Include:   <graph.h>
 
  Syntax:    short _setwritemode( short action );
 
  Returns:   the previous write mode, or -1 if an error occurs.
 
  See also:  _getwritemode, _lineto, _putimage, _rectangle, _setcolor,
             _setlinestyle
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