On Fri, 20 Oct 2006, Alex Smirnov wrote:
> *Hello, colleagues.*
>
> I have cerated a library (a clone of GLScene lib). It works both in Win32 and
> Linux/GTK. So, inside of the code I have some testing - for example, I try to
> open a file and if it is not exist - I should raise an Exception.
>
> So - this is the question. I have such a code:
>
> /if Not FileExists(FFileName) then Begin Raise Exception.Create('File
> '+FFileName+' is not found'); Exit; End;/
>
> The problem is that this exception window will not be visible. Program will
> not stop on it and will break with "Access violation exception". I can only
> see an exception window if I try to debug my program.
>
> So - what is wrong? This behavior is quite different from Delphi and Sibyl -
> they both will stop the program on such exception, showing the window with my
> massage.
The message is shown on the console. The SysUtils unit is cross platform,
so it does not 'know' how to display a dialog box, even on Windows.
If you run your program on the console (command-prompt)
(and it is compiled on as a console app, the default) then you will
see the message printed on the console.
Inside the IDE, the debugger catches the exception and shows the window.
Michael.
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