delphi - 终止delphi应用程序的正确方法是什么？

Question

我想终止 Delphi 应用程序而不执行任何其他代码行，我想知道哪种方法是执行此操作的正确方法。此外，我想知道我现在实际做的事情是否有问题。基本上，我的代码如下所示:

//Freeing all objects (Obj1.Free, etc..)
Application.Terminate;
Halt;

这是停止 Delphi 应用程序的正确方法还是应该以其他方式完成？

Answer 1

Application.Terminate() 中断 TApplication.Run() 和 TForm.ShowModal() 中的消息循环，从而允许主线程正常退出，执行必要的清理等。

Vcl.Forms.TApplication.Terminate

Ends application execution.

Call Terminate to end the application programmatically. By calling Terminate rather than freeing the application object, you allow the application to shut down in an orderly fashion.

Terminate calls the Windows API PostQuitMessage function to perform an orderly shutdown of the application. Terminate is not immediate. Terminate is called automatically on a WM_QUIT message and when the main form closes.

另一方面，

Halt() 是立即异常终止。基本上，将进程从内存中删除。仅在没有其他选项可用的极端情况下才使用它。

System.Halt

Initiates the abnormal termination of a program.

Halt performs an abnormal termination of a program and returns to the operating system.

To perform a normal termination of a Delphi application, call the Terminate method on the global Application object. If the application does not use a unit that provides an Application object, call the Exit procedure from the main Program block.