wxPython: How to get a child by name?

[Franz GEIGER]

Hi Robin,

thanks for your comprehensive response!

Yet these are my first steps with wxDesigner and what you
told e was definitly what I was looking for. Though, I saw this Get button
right in front of my eyes...
Anyway, all works fine now!

Thanks a lot and best regards
Franz


"Robin Dunn" <robin at stop.spam.alldunn.com> wrote in message
news:w88w6.971$NAC.9240731 at news.randori.com...
>
> "Franz GEIGER" <fgeiger at datec.at> wrote in message
> news:99qpce$ljk$1 at newsreaderg1.core.theplanet.net...
> > I currently try to polish some of my apps with a GUI and decided to go
for
> > wxPython.
> >
> > I use wxDesigner for the layout. As it generates code after every
change,
> I
> > named all the text controls and checkboxes etc. of the dialog hosting
all
> > those controls by applying SetName() to the controls. The Dialog is
small,
> > so I do not use validators yet.
> >
> > To get a text control of the dialog I thought I could write
> > theValue = self.FindWindowByName("tcSurname").GetValue().
> > This raises an exception, because the return value is of type
wxWindowPtr
> > which does not have such a method.
>
> ...
>
> > For a "quick" hack in a MSVC project I would downcast the returned
pointer
> > of GetDlgCtrl() to be able to call the subclassed object's methods. But
> how
> > do I proceed here?
>
>
> You're on the right track, you're looking for wxPyTypeCast which takes a
> shadow object and converts the swigified pointer within it to a different
> type and wraps a new shadow object around it of the new type.  There are
> some comments about it in wx.py.  (I'm making some changes soon that will
> hopefully let me finally turn this hack into a no-op...)
>
> But since you are using wxDesigner you could have saved yourself a bunch
of
> work and let it generate some "getters" for you.  Click on the Add Python
> Source button to add a new sourcefile to your project, then double click
the
> filename under Python sources in the tree view to open the file.  Once
there
> you can add classes that create and use the specific forms you've
designed,
> and also add to the class event handlers and getters for the fields on the
> form.  I usually end up changing a lot of the code that it generates for
the
> __init__ method but that's okay since it never regenerates this file, only
> adds to it.  For the getters it makes code like this:
>
>     def GetLoginBitmap(self):
>         return wxPyTypeCast( self.FindWindowById(ID_LOGINBITMAP),
> "wxStaticBitmap" )
>
>     def GetPasswd(self):
>         return wxPyTypeCast( self.FindWindowById(ID_PASSWD),
"wxTextCtrl" )
>
>     def GetUsername(self):
>         return wxPyTypeCast( self.FindWindowById(ID_USERNAME),
> "wxTextCtrl" )
>
>     def GetURL(self):
>         return wxPyTypeCast( self.FindWindowById(ID_URL), "wxComboBox" )
>
> You just need to be sure that you give each control a unique ID name.
Once
> you have the getters like this you can write code like:
>
>     self.GetUsername().GetValue()
>
>
> --
> Robin Dunn
> Software Craftsman
> robin at AllDunn.com       Java give you jitters?
> http://wxPython.org      Relax with wxPython!
>
>
>
>