Re: opening a child window

[Andy Gilman <amgilman myfairpoint net>]

On Wed, 24 Apr 2013 10:14:04 +0200
Murray Cumming <murrayc murrayc com> wrote:

> On Tue, 2013-04-23 at 16:44 -0400, Andy Gilman wrote:
> [snip]
> > Thank you for these quick and helpful responses.  I am still a bit
> > perplexed, and in the interests of brevity and clarity I may have
> > omitted relevant info.  If I put the "some_window.show() function in
> > the Main file (where the primary window is called through "return
> > app->run(primary_window), it works fine.  But I was hoping to call
> > the "some_window" from a button click in the primary_window.  I
> > have set up such a button and it is functional.  I do not get any
> > error messages, but I also do not get any child window.  Perhaps
> > the pattern I am attempting is not desirable programming? 
> [snip]
>
> I suspect that you are doing this:
>
> void somemethod()
> {
>   Gtk::Window mywindow
>   mywindow.show();
> } //mywindow is now deleted because it is out of scope
>
> rather than this:
>
> void somemethod()
> {
>   m_mywindow = new Gtk::Window(); 
>   mywindow->show();
> }
>
> But if you show some simple code then people can tell you what you are
> doing wrong. This is rather simple stuff.
Next time I will send along the code.  However, this time, your
suspicion (both about the code and the simplicity of the problem) were
accurate.  Thank you for this help.

Andy