[lazarus] New Bug Entered - Arithmetic overflow

[James Mills]

On Sat, Dec 27, 2003 at 02:26:07PM +0100, Mattias Gaertner wrote:
> On Sat, 27 Dec 2003 07:38:17 -0500 (EST)  bugtracker at miraclec.com wrote:
> 
> > 
> > Title: Arithmetic overflow
> > 
> > Entered by: James Mills
> > 
> > When you try to scroll (using a scroll mouse) in a listbox without the
> > listbox being selected, an Arithmetic overflow occurs forcing Lazarus to
> > be killed.
> > 
> > This happens in:
> > Environment -> Editor Options -> Key Mappings
> 
> This is a TTreeView, not a TListBox.
> 
> I'm not able to reproduce the error. 
> But that there is a (fpc) bug with floats, which results in exceptions in
> the scroll routine. I don't know, why only there. The code itself seems to
> be ok.

Try the following (with a scroll mouse):

1: Click Environment
2: Click Editor Options
3: Click Key Mappings
4: Scroll with the mouse

I think there's a problem in the code somewhere when it recieves a
scroll event without the TTreeView component being selected first.

cheers
James

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