fading of two pictures (blend one picture into the other)
It's best to work in pixels when you're doing this, not twips.
If for some reason you /have/ to work in twips, then check the
value of Screen.TwipsPerPixelX and index accordingly:
intStep = Screen.TwipsPerPixelX
For x = 0 to intControlWidth Step intStep
...
You do /not/ want to do this every twip, as you've found out!
It's slow enough as it is! ;-)
--
--------------------------------
"For every action, there is an equal and opposite criticism."
Quote:
> On Tue, 14 Dec 1999 09:31:17 +0100, "Peter Quick"
> >Lewis,
> >Nice job,
> >to speed it up use
> > SetPixel Picture1(2).hdc, x, y,
GetPixel(Picture1(0).hdc, x, y)
Quote:
> > ...
> Sorry, I've been pretty busy.
> I tried your suggested modification. Managed to get it working
> eventually, too, once I realised that I needed to set my
scalemode
> back to 0 - twips. Unfortunately, it is now EXTREMELY slow,
since it
> has to do about 9.8 million comparisons and moves, compared to
about
> 44,000 in my original version.
> Am I doing something wrong?
