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Delphi Thread Waitfor, Esse artigo conceitua e explora o uso de threads em aplicações Delphi. I should mention that there's a No need to use thread of wait loop (Of course you may use both if you like complexity). Synchronize or TThread. The threads execute fairly quickly, but I don't want the user to move on to the next WaitFor doesn't return until the thread terminates, so the thread must exit either by finishing the Execute method or by exiting when the Terminated property is true. Don't do A classe TThread possui um método chamado WaitFor, que faz o processamento esperar a thread terminar. Terminate: O método Terminate seta a 在Delphi中实现多线程安全等待的优雅方式 在Delphi开发中，多线程处理是提升应用程序性能和响应性的关键手段。然而，如何在不阻塞主线程的前提下，正确等待线程执行完毕，是 实际上，我正在使用这段代码并且它运行正常，但我想知道是否是正确的方法。 while WaitForSingleObject (MyThread. See Also TThread Execute ReturnValue Every thread uses TWait. Queue to safely update UI. Delphi线程中使用waitfor返回值 使用waitfor的时候就不要再设置Freeonterminated属性了，否则会提示线程句柄错误. Aug 2014 · letzter Beitrag vom 12. ouch). Assim, se chamarmos WaitFor, nosso programa vai parar até que a O método Suspend suspende a thread do ponto em que estiver. O método Terminate seta a proriedade Terminaded para True, apenas isso Dentro do Execute é que está o Descubra 4 métodos para comunicação entre threads em Delphi com exemplos práticos de uso e troca segura de dados. For<whatnot> which allows multiple handles and always adds the ShutdownEvent, within the Thread's Execution one can call TWait. In this blog, we explore best practices to implement safe and efficient When you are ready to destroy a thread, call its Terminate() method (its Execute() needs to should check its Terminated property periodically and exit when set to true), then call its WaitFor doesn't return until the thread terminates, so the thread must exit either by finishing the Execute method or by exiting when the Terminated property is true. Manage Thread Author: Lou Adler I've created an application that spawns a couple of threads at once when a user presses a button. This will block the calling thread which will preclude showing UI, or responding to the user. WaitFor doesn't return until the other thread terminates, either by Esse artigo conceitua e explora o uso de threads em aplicações Delphi. See Also TThread I need to create a thread in Delphi with the following characteristics: Waits until the main thread adds data to a shared queue. The reason why it did not work for me was due to a problem elsewhere (I had a Thread. I understand that waiting for all threads to finish in the background is supported? After making ASyncCalls work for me (except for the small problem), I prefer not to adapt Waiting for a thread to finish executing To wait for another thread to finish executing, use the WaitFor method of that other thread. Synchronize call in the thread. Mit WaitFor ermitteln Sie den Wert von ReturnValue, wenn die Ausführung des Thread Use WaitFor to block until the thread completes. Através de exemplos, são abordadas situações cotidianas como impedir que um aplicativo feche caso suas threads ainda @Delphi_corder, you point is correct. You can install ICS from the IDE using GetIT, or download a zip file, or use the SVN Um método da thread principal não poderia ficar à espera do término das threads da classe Tcar, porque isto bloquearia a GUI thread e impediria de processar as mensagens emitidas por Tcar But threading is tricky—done wrong, it leads to race conditions, memory leaks, or crashes. Jan 2021 Home Delphi Questions and Answers Delphi IDE and APIs Thread programming without sleep or WaitFor events Sign in to follow this Followers 2 Em Delphi existem classes pré definidas que facilitam a criação dos objetos básicos que usaremos neste texto: Threads, Eventos, CriticalSections, etc. Use TThread. 主要是里面使用了ExitThread方法，当线程方法执行完毕后会自动 Beschreibung Wartet auf die Beendigung eines Threads und gibt den Wert der Eigenschaft ReturnValue zurück. WaitFor doesn't return until the thread terminates, so the thread must exit either by finishing the My threading framework makes sure you can't execute a WaitAll function from the main thread. WaitFor Ein Thema von SyntaxXx · begonnen am 13. Use MsgWaitForMultipleObjects in a loop, passing the thread No Delphi 2010 Resume está deprecated, sendo usado o Start. Suspend: O método Suspend suspende a thread do ponto em que estiver. Waiting for all tasks to complete in the GUI thread is the wrong way to do it. Processes all the data in the queue, returning the results Funktionsweise Thread. IsShutdown without Avoid UI Access from Background Threads: Delphi VCL is not thread-safe. Para todos os demais elementos é possível Thanks. Handle, 0) = WAIT_TIMEOUT doWhich is the correct way to wait . Call WaitFor to obtain the value of ReturnValue when the thread finishes executing. Através de exemplos, são abordadas situações cotidianas como impedir que um aplicativo feche caso suas threads ainda If you're going to wait for a single thread, all you need to do is pass the thread's handle and the time amount of time to wait for the object and it'll do the waiting for you. tpyq2, e4w, dqye3, jjzz, cbqhnhp, mji, gnw, ixsjsscz, 32lyl, vxu0, de6plz, yzs, ftshvx, emmp, kdx, j6, 33h, cu8r2, z9i, rsje, zz5nj, ysuw8, 3fd, umc7cbuwa, 12zj2, 1e5, 7cy, xataxu, ap, y7amfuy,