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C/C++ Source or Header  |  1989-07-18  |  197 b   |  15 lines
  1. #include <dos.h>
  2.  
  3. int CheckPrn()
  4. {
  5.     union REGS regs;
  6.  
  7.     regs.h.ah = 2;
  8.     regs.x.dx = 0;
  9.     int86( 0x17, ®s, ®s );
  10.     if ( regs.h.ah == 144 )
  11.        return( 1 );
  12.     else
  13.        return( 0 );
  14. }
  15.