[Lazarus] Thread safe

[SteveG]

> >
> > I pass the address of a WinCtrl (eg Label) to the function, then use
> > the following
> >   TLabel( CompAddress^ ).Caption := 'test';
> >
> > also a problem is 'Application.ProcessMessages' within the library
> >
> > These (and variations of) seem to fail regularly, but work fine from
> > the Laz app itself
>
> I can't say without knowing the code. Please provide an example.
>
Will do - just have to attempt to distill the relevant code  - Thanks