[Lazarus] How to fix slow screen refresh of TListbox?
Vojtěch Čihák
vojtech.cihak at atlas.cz
Mon Nov 21 00:03:09 CET 2022
It wouldn't be that hard to write custom component based on TGraphicControl + TBitmap with built-in bitmap font. Copying bitmap letters will be faster than rendering from ttf.
V.
______________________________________________________________
> Od: "Bo Berglund via lazarus" <lazarus at lists.lazarus-ide.org>
> Komu: lazarus at lists.lazarus-ide.org
> Datum: 11.11.2022 16:29
> Předmět: [Lazarus] How to fix slow screen refresh of TListbox?
>
Now I wonder if there is some way to do as I did when I worked in Delphi with
TListView objects, where I could use the BeginUpdate and EndUpdate calls to make
all screen updates wait until it was all put in place.
This was MUCH faster!
But I can not find a BeginUpdate on the TListBox object, only BeginUpdateBounds,
which does not tell me much....
Any suggestions?
--
Bo Berglund
Developer in Sweden
--
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