Re: [wxperl-users] Problem using Wx::DataObjectComposite

[Mattia B. <mat...@li...>]

On Thu, 24 Aug 2006 13:54:44 +0200
"Mark Wardell" <ma...@ne...> wrote:

  Hi,

> A problem seems to have crept into wxPerl in the latest builds (2.7) code
> that used to work now causes an application exception in my DropTarget when
> I call ::GetData. The code that causes problems is:
>  
>  # create the composite data object
> my $DataObject = Wx::DataObjectComposite->new;
> $DataObject->Add( Wx::TextDataObject->new( $TextData ) );    # simple scalar
> $DataObject->Add( Wx::Perl::DataObject->new( $PerlData ));    # hash ref
> $DropSource->SetData( $DataObject );
> 
> If I change this to the code below I get no problems.
>  
> my $DataObject = Wx::Perl::DataObject->new( $PerlData );    # hash ref
> $DropSource->SetData( $DataObject );

  I used the patch for wxDemo you sent separately to reproduce the issue.
The problem lies in Wx::PlDataObjectSimple. I patched it, but it caused
a warning under threads; so the problem is gone for now, but might
need a more complex fix.

> So it seems that the problem has been caused by changes that have affected
> Wx::DataObjectComposite. Is this possible?
> There have been plenty of changes to wxPerl in the last few weeks so I
> thought I would pose the question.

Thanks!
Mattia