Hello Martin,
I didn't try the scrool update fix you requested in another mail, however I tried the the redraw-all-lines, this will probably help better, I am currently playing with it.
Thank again for help.
Dňa 9. 10. 2017 o 18:20 Martin Frb via Lazarus napísal(a):
About scrolling due to caret moves.

Not sure if my suggestion in the other mail (7 Oct 15:12 SynNewScrollBarUpdate) helped?

If not, I can think of 2 causes.

1) The scrollbar change is not noted. If that is the case, I have no idea (SynNewScrollBarUpdate does affect this)

2) SynEdit does not redraw all lines, but uses ScrollWindowEx to move its canvas. This is very common. I would not expect this to be an issue. Anyway you can force it to redraw all lines (slower, and more battery if on a laptop) Go to components\synedit\synedit.pp line 4653 inside procedure TCustomSynEdit.ScrollAfterTopLineChanged.
the line is currently
      if ScrollWindowEx(Handle, 0, LineHeight * Delta, @srect, @srect, 0, nil, SW_INVALIDATE)
replace it with
       if false


On 07/10/2017 09:01, Lubos Pintes via Lazarus wrote:
but there is probably another change, because the NVDA is unable to show me lines after I scrool with a down arrow to try to read the contents. But that may be a NVDA problem.



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