[Lazarus] TProgressbar moves slowly, is there a hidden setting for faster response?

[Ondrej Pokorny]

On 15.05.2019 17:11, Bo Berglund via lazarus wrote:
> On Wed, 15 May 2019 13:38:19 +0200, Ondrej Pokorny via lazarus
> <lazarus at lists.lazarus-ide.org> wrote:
>
>> Because WinAPI developers wanted it so - the drawing of TProgressBar is
>> fully in charge of the OS.
> Strangely just discovered that the progressbar is painted "fast
> enough" if I click a position towards the lower side of the current
> position!
>
> So start and click towards the end (max) - it slowly paints the bar.
> Then click towards the start (min) - it *immediately* paints it
> correctly.
>
> There *must* be a way to enforce the latter paint method also for
> positive moves....

Try to set DoubleBuffered:=True. That should disable all possible OS 
painting animations.


> I really do not want to create a panel child to implement this
> behaviour unless I am really forced to....

That's what I would do. (But not a panel child but a TGraphicControl 
descendant.)

Ondrej