pcsoft.us.windevCopyright 2026, PC SOFT14 Jan 2016 14:11:00 Z13 Jan 2016 13:58:00 ZHi, I have some problems with the understanding of RequestUpdateUI(). I saw the Youtube Video from WXLive about these things from Andy Stapleton and he is using "RequestUpdateUI()" to request the screen update. I try to do the same thing (without classes) but the Windows procedure code "request for refreshing the display" run only one time at start and then never again. Whats wrong ?30WEBDEVen_UShttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui/read.awpmoderateur@pcsoft.fr (El moderador)webmaster@pcsoft.fr (El webmaster)guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55860/read.awp14 Jan 2016 14:11:00 ZHi Michael, It is because ParallelTaskWaitAll(). It blocks the main thread. A very simple solution is set the procedure as a …https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55860/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55860/read.awp[WD20] ParallelTask and RequestUpdateUI()guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55855/read.awp14 Jan 2016 10:22:00 Zno, doesn´t work. The window is frozen, no error message.https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55855/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55855/read.awp[WD20] ParallelTask and RequestUpdateUI()guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55854/read.awp14 Jan 2016 10:02:00 ZHi, Could it be that the RequestUpdateUI must execute on the mainthread, because it is UI ? Maybe you can try to use the E…https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55854/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55854/read.awp[WD20] ParallelTask and RequestUpdateUI()guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55853/read.awp14 Jan 2016 09:44:00 ZHi Derek, now it works. I wrote RequestUpdateUI() in the paralleltask code and this was the failure.https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55853/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55853/read.awp[WD20] ParallelTask and RequestUpdateUI()guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55849/read.awp13 Jan 2016 17:57:00 ZMichael No time to test this at the moment, may have a play this evening but my understanding is that 'RequestUpdateUI()' wil…https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55849/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55849/read.awp[WD20] ParallelTask and RequestUpdateUI()guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55846/read.awp13 Jan 2016 16:55:00 ZHi Derek, ExecuteUpdateUI() runs not in Parallel Task. I am wondering what is the difference between running RequestUpdate…https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55846/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55846/read.awp[WD20] ParallelTask and RequestUpdateUI()guestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55845/read.awp13 Jan 2016 16:36:00 ZMichael I have not tried this outside of classes but you could try ExecuteUpdateUI() instead. Also if you change the code se…https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55845/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/55840-wd20-paralleltask-and-requestupdateui-55845/read.awp[WD20] ParallelTask and RequestUpdateUI()