🚀 go-pugleaf

"Pere Mateu" <pmateu@siam.es> wrote in message
news:40fbfe0c$1@newsgroups.borland.com...
> Hi,
>
> I'm trying to embed some VCL components in a DLL. I want to show these
> components in the main form of my app by -after succesfully getting a
> pointer to the VCL component- changing the Parent property from the form
in
> the DLL to the form in the main EXE. But this is not working. I get
> assignment errors like 'Can not assign a TFont to a TFont'.
>
> What am I doing wrong?
> Thanks very much.
> Pere

You can do one of two things:

1) Use a package instead of a DLL, or
2) Set the DLL's 'Application->Handle' to the EXE's main form handle:

In the DLL:

namespace MyDLL
{
  void __stdcall InitAppData( HWND handle )
  {
    Application->Handle = handle;
  }
}

In the EXE:

MyDLL::InitAppData( Application->MainForm->Handle );

And of course, appropriately export the function from the DLL.

- Dennis