delphi TApplication.OnException

代码文件:

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls;

type

TForm1 = class(TForm)

Button1: TButton;

procedure Button1Click(Sender: TObject);

procedure FormCreate(Sender: TObject);

private

procedure AppException(Sender: TObject; E: Exception);

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

type

MyException = Class(Exception);

procedure TForm1.FormCreate(Sender: TObject);

begin

Application.OnException := AppException;

Button1.Caption := '激发一个异常';

end;

procedure TForm1.AppException(Sender: TObject; E: Exception);

begin

Application.ShowException(E);

Application.Terminate;

end;

procedure TForm1.Button1Click(Sender: TObject);

begin

raise MyException.Create('发生异常, 将要退出!');

end;

end.

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