Delphi execute procedure in thread

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August undefined, 2024

Web{ Make a call to this procedure in your project source immediately before the first call to CreateForm. That should ensure it is after the Application.Title assignment that can muck up the logic. If you haven't set an application title yet, then do so to ensure this works } procedure EnsureSingleInstance (MyGUID : string) ; implementation uses WebMar 26, 2013 · Create the thread in a suspended state, then set the OnTerminate and finally Resume the thread.. In your test class, define a private boolean field FThreadDone which is initialized with false and set to true by the OnTerminate Eventhandler.. Also, your constructor logic is a bit dirty, as you should not initialize field prior to calling the inherited …

delphi - Run function inside a thread and get result - Stack Overflow

WebJan 19, 2024 · The Delphi programming language provides a quick way to write, compile, package, and deploy applications cross-platform. Although Delphi creates a graphical user interface, there are bound to be times … fritz box mit wlan 6

System.Classes.TThread.Execute - docwiki.embarcadero.com

WebSep 9, 2024 · Execute action after form is shown. Lazarus doesn't support something like form OnShown/OnShowAfter event where custom code can be executed after form was shown. This is useful mainly to do run custom code after main form is shown. It would serve as kind of one time OnApplicationStart event. In would be useful for example for loading … WebFeb 23, 2015 · See above: The answer is yes. However, this second question simply does not make sense since it assumes that Sleep () is always and by necessity never the proper way which, as is explained in the answer to #1 above, is not necessarily the case. Sleep () may not be the best or most appropriate way to program a delay in all scenarios, but … WebJan 28, 2024 · Why did I do it? consider this test case where I need to terminate the thread if some condition in the Timer event (note I switch to FreeOnTerminate := True and let it auto free): procedure TForm1.FormShow (Sender: TObject); begin FTimerThread := TTimerThread.Create; FTimerThread.Interval := 5000; FTimerThread.OnTimerEvent := … fcntl c言語使い方

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multithreading - Delphi 7: How to implement multi-threading?

WebOct 28, 2024 · Description. Provides an abstract or pure virtual method to contain the code which executes when the thread is run. Override Execute and insert the code that … WebFeb 12, 2024 · 7. With the code like this. procedure TSearchThread.Execute; begin inherited; Synchronize (DoSearch); end; you don't use a worker thread at all - all work is done in the main thread via Synchronize call. That is an example how one should not use threads. In short, your Execute code may look like this: fritzbox mobiles internethttp://wedelphi.com/t/272514/ fritzbox mobiles wlan

"WebFeb 28, 2015 · Run function inside a thread and get result. I have 2 functions that can tell me if a file is in use by checking if the size of the file grows.In order to work I need to use a delay of 5000ms between each size gathered from the same file.This is OK but it blocks my main thread so I have to put the functions inside a thread. Here are the ... " - Delphi execute procedure in thread

Delphi execute procedure in thread

Execute and Run Applications and Files From Delphi Code - ThoughtCo

WebApr 7, 2024 · Viewed 141 times. 1. Basically, what I need to do is this: Show the user a "Please wait ..." form (lets call it waitForm) on top of the main form, execute http methods (get and post), and close the waitForm after I get the http response. Since the http post method communicates with a physical device, it takes a while for the response to return ... WebSep 13, 2024 · Not sure if this is what you are looking for, but if you are on a recent Delphi version these Postpone methods may come in handy. They execute AProc in the main thread after applying an optional non-blocking delay.. uses System.Threading, System.Classes; procedure Postpone(AProc: TThreadProcedure; ADelayMS: Cardinal …

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WebMar 23, 2015 · If you just want to wait until it is finished, you can call WaitFor (or WaitForSingleObject). This is possible, because the handle for the thread is already created in its constructor, so you can call it right away. Also, I set FreeOnTerminate to true on these threads. Just let them run and free themselves. WebDec 17, 2024 · procedure TMyThread.Execute; begin while not Terminated do PerformSomeTask; end; Handling exceptions in the thread function. The Execute …

WebDec 4, 2024 · We don't need to process more requests at once, but I must use the libraries and DB connection from the main thread. The Delphi version is Seattle, the Indy version is 10 (internal). As I know the IdHTTPServer uses threads for connections - as formerly. WebDec 7, 1999 · Delphi/C++Builder. VCL components; Database/SQL; ... Files, drives, network; OLE/Interop; Visual controls; Multimedia, images; Java The next procedure …

WebJun 18, 2024 · Execute (procedure (i: integer) begin CreateThumbs (JPGList [i]); end); Everything works OK, except for I cannot get the status bar to display the progress. I use a global variable for the count of the produced thumbnails that is incremented (TInterlocked.Increment) in "CreateThumbs". WebMar 2, 2024 · avoid sharing data 1 between threads (including main thread); if you must share data ensure your threads co-ordinate 1 their access to avoid race conditions (too big a topic to go into detail). Then the following is the minimum needed: Define your thread. Implement your main processing in the Execute() method. Create and start your thread.

WebApr 6, 2013 · 8. To execute code in the main thread, without access to a TThread instance, call the class methods TThread.Synchronize or TThread.Queue. If you happen to be using an old Delphi compiler that does not have those methods, then SendMessage or PostMessage with a user defined message are the simplest solution. Share.

WebJun 11, 2024 · When anonymous thread Execute method starts, it will first attempt to increase the count. If it cannot do that, it means countdown event is already signaled and thread will just terminate without calling its anonymous method, otherwise anonymous method will run and after it finishes count will be decreased. fcntl.fd_cloexecWebDec 13, 2024 · The simplest way is using timer. Let you create DelayTimer with needed period set and Enabled = False on the form in design time (you can also create it dynamically). Assign event handler for it: procedure TFormXX.DelayTimerTimer (Sender: TObject); begin DelayTimer.Enabled := False; // works only once StartLoop; end; fcntl blockWebSep 15, 2015 · There are two options: while the OnTimer event of a TTimer is executed in the thread which has created the timer, you may consider to create the instance outside the main thread; you may consider to use a TThread class instance; The following applies to the #2. Using a TEvent in the Execute procedure of your thread you can wait for an … fcntl fcntl64WebDec 17, 2024 · The Execute method is your thread function. You can think of it as a program that is launched by your application, except that it shares the same process. Delphi Power . Marketing ... Yes, you can call a function inside the synchronize procedure of the Thread class in Delphi. The method you use to do this will depend on the type of … fcntl fd f_setlkw \\u0026lockWebMar 10, 2012 · Delphi 7: How to implement multi-threading? I have a TButton in the main TForm. When user click the button, it will execute the below process: begin Process_done := FALSE; Process_Result.Clear; cmdProcess.CommandLine := #34+AppPath+'getdata.exe"'; cmdProcess.Run; Repeat Application.ProcessMessages; … fritz box monitor trafficWeb1 day ago · 1. New contributor. 1. Make sure you are building in debug configuration. Also go to Project > Options > Delphi Compiler > Compiling > Debugging and make sure there is a checkbox next to "Use debug .dcus". – Andreas Rejbrand. 27 secs ago. Add a … fritzbox monitoring prtgWebMar 7, 2012 · Set the thread's FreeOnTerminate property to True, so that there is no need to free the thread when it finishes. The Execute procedure must be overridden in the … fritz box modem oder router