Fred vS

Yes, it is what I noted. With synchronize, for example if you begin to move the window with number "10" a certain time, the window is not refreshed and when...

> But if you run the second example (http://pastebin.com/mfsx2H9Z) Sorry but for all your link to pastebin I get error connection and cannot test it.

Just tested with a MSEgui app with thread on Windows 11 and there all ok when moving window. Now where to look, both use Windows gdi32 interface...? Any idea is...

Re-hello. > But if you run the second example (http://pastebin.com/mfsx2H9Z) You may use this issue and paste the zipped file, it is more easy for everybody.

Hum, without minimum sleep(1) I cannot close your example. Anyway, yes there is a problem when moving window and thread-synchronization. Did you try to synchronize something inside the form, like...

> Does fpGUI have paintbox? I can not find... You may try painting on the canvas of a TOtherwidget or TFPGPanel.

> Does fpGUI have paintbox? I can not find... Or simply, with a TfpgPanel, change the color and caption via the thread-synchronize.

Yeeep! https://forum.lazarus.freepascal.org/index.php/topic,58888.msg483626.html#msg483626

Bon, je resume. Lors du linkage, juste apres la compilation, toutes les methodes de la libraire libc sont assignees avec le symbole de la libraire presente sur le syteme. (...

J ai teste sur une ancienne version Debian 5 de 2009 et cela fonctionne. En fait tout fonctionne parfaitement. J'espere que les devs de fpc vont enfin piger le principe....