[delphi-en] stretchblt is SLOW - ideas?

[Damon Theis]

Current code is using stretchblt to grab main display dc and blit to second
monitor in reverse (for display by projector)

Method is slow and a lot of processor time.  Any better ideas?

      mydc := getdc(0);

      drawdc := getdc(flip.panel1.handle);

      setstretchbltmode(drawdc,COLORONCOLOR);

 
stretchblt(drawdc,0,flip.panel1.height-1,flip.panel1.width,-1-flip.panel1.he
ight-1,

        mydc,0,0,dx,dy,

        SRCCOPY);

      releasedc(flip.panel1.handle, drawdc);

      releasedc(editmode.handle,mydc);



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