[Solved] I want to Thread and Form work together [closed]
Button1Click is stopping the execution of the main thread for 3 seconds. During the sleep(3000) execution, no GDI message is processed, so the dialog boxes are NOT displayed immediately. In fact, TCustomThread.doProc works as expected, but the dialog box is not displayed until the GDI messages are processed. You have to change this method e.g. … Read more