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Altera_Forum's avatar
Altera_Forum
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20 years ago

break loop with 'q'

Hello, this may be a very beginner question, but I cannot get ahead. I have a loop wich should be performed until the user presses 'q'. I tried with getchar() but it seems that getcha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Thank you very much, works fine now.

My code: 

int32 KeyPressed( void )
{
  int32 key = -1;
  int32 flags;
  
  /* save flags */
  flags = fcntl( fileno(stdin), F_GETFL );
  
  /* set non blocking */
  if( ! fcntl( fileno(stdin), F_SETFL, flags | O_NONBLOCK ) );
  {
    key = getchar();
  }
  
  /* restore flags */
  fcntl( fileno(stdin), F_SETFL, flags );
  
  return( key );
}