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  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 193
  • Last Modified:

Why can't I catch the exception?

The following is my program. I would like to catch the exception from Test:=StrToInt('ss'). It still shows an EConvertError, Why can't I catch it?

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    procedure MyExceptionHandler(Sender : TObject; E : Exception );
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
     { begin new code }
     Application.OnException:=MyExceptionHandler;
     { end new code }
end;

procedure TForm1.MyExceptionHandler(Sender : TObject; E : Exception );
var
     wRetVal : Word;
begin
     wRetVal := MessageDlg('ERROR: ' + E.Message, mtError, mbAbortRetryIgnore, 0 );
     case wRetVal of
         mrAbort: begin
             { handle "Abort" here... }
         end;
         mrRetry: begin
             { handle "Retry" here... }
         end;
         mrIgnore: begin
             { handle "Ignore" here... }
         end;
         else
         begin
             { handle "other" action here...}
         end;
     end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var Test:integer;
begin
   Test:=StrToInt('ss');
end;

end.
0
adamy
Asked:
adamy
1 Solution
 
LRHGuyCommented:
I tried it, and it seems to catch it for me...but while in the DELPHI IDE, the debugger catches it first. When I turned off the integrated debugging (in options) it worked as expected...

Larry
0
 
adamyAuthor Commented:
Thanks a lot
0

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