On 23.03.2018 1:25, Werner Pamler via Lazarus wrote:
Looking at the demo of the mbColorLib again after some time I see now
a terrible flicker on Windows. Ondrej, I fear your change in
double-buffering killed a majority of third-party components. It may
take some time until all authors will fix this (and most of them left
their babies...).
Why killed? You can still set the DoubleBuffered property to True.
In 1.8 the DoubleBuffered property was ignored on Windows for all
controls. Instead DoubleBuffered=True was forced without the chance to
disable it. I.e. the property was absolutely useless since it is not
used on Linux/OSX either.
I just disabled the forced DoubleBuffered=True - the same what Delphi
does. The only thing LCL misses is ParentDoubleBuffered that makes
things easier.
If you don't like the Delphi way but like the Lazarus 1.8 way - it's a
valid scenario as well, but then the DoubleBuffered property should be
deprecated/removed and DoubleBuffered should be handled automatically
with protected methods to override the default behavior.
If you want to discuss it, it will be better to open a new thread.
Ondrej
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