[Lazarus] Multiple copies of same form

[Mattias Gaertner]

On Sat, 14 Sep 2013 03:08:46 +0200
Hans-Peter Diettrich <DrDiettrich1 at aol.com> wrote:

> Timothy Groves schrieb:
> > I would like to write an app that has the following properties:
> > 
> > 1)  A main form exists, one of which is spawned at program start;
> > 2)  Additional copies of the main form may be spawned;
> > 3)  The program exits only when no copies of the main form are in 
> > existence.
> > 
> > I've tried a few things when spawning additional forms, such as 
> > form.Create, but when I close the *first* form spawned, *all* such forms 
> > are destroyed.
> 
> That's the specified behaviour: the first created form becomes 
> Application.MainForm, and the program terminates when exactly that form 
> is closed.

No. The first form created by Application.CreateForm becomes the
MainForm. Except for splash and mdi forms.

 
> >  I also tried Application.CreateForm, but that doesn't 
> > seem to do anything.  Google has failed me, as well.
> > 
> > What's my best option for this?

Create forms with
Form1:=TForm1.Create(Application);

or:
 
> I'd keep a dummy MainForm hidden, and count the instances of the other 
> forms.

Mattias