Christopher Cave wrote: > There has been a problem with reading pixels using this trap for ever or > at least since display modes became richer. I asked about it in this > group a year or two back but this attracted no interest at the time. I > was trying to write a flood facility into my CAD program but ended up > having to read pixels from the screen in my code - is this something that > should be done in atomic mode so all is done and dusted before another > program intervenes?
IOW.XTOP is the way to go in this case. > Anyway, I found out the hard way that the code has to allow for > different display modes! As George said, I could see a need for a mode independent trap that's reading a pixel value back. The scanning... not so much. Marcel _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
