Re: [PythonCE] PPYGUI - parent window and closing it

[Adam Walley]

That's perfect! Thanks for your suggestions. I have adjusted the registry to
allow for .pyw files without the shell (CeRegEditor did the job). Now when I
run my code and press the 'X' in the top right corner, the whole thing exits
smoothly and fully - Great!

I didn't want to use tMan because that would mean that my users would need
to use/install it too. Binding the close signal to the app works very nicely
with the emulator without tMan, but not on my WM5 device (as you had
explained).

Thanks again for the assistance.

Adam.

2008/7/10 Alexandre Delattre [EMAIL PROTECTED]:

 Hello, Alexandre.


  I have begun testing some ideas using the PPYGUI and find it very easy to
 work with. However, I would like to ask if there is a way to know when the
 user has pressed the 'X' button in the top right of the window to close
 the
 app? The reason I ask, is that when I run some ppygui code a blank Python
 window opens, then the ppygui app window opens on top of it. When I close
 the app using the top right 'X' I am returned to the blank Python window.
 This is very similar to the situation on the desktop version of Python,
 where a terminal window opens unless your Python file is run with the .pyw
 extension.


  I can implement a 'close' button that executes the sys.exit() command, and
 this successfully closes the app and the blank Python terminal window
 together. Nevertheless that top right 'X' is still there, and I would
 prefer
 the users of my app to have something consistent and which behaves as
 expected (i.e when you press 'X' the app exits or at least is hidden
 fully).


  How do it detect this 'close' event for the main app?


  Adam


 Currently the best option is to install the tMan task manager 
 http://pda.jasnapaka.com/tman/ or others,
 which allow to close program when clicking 'X' instead of the default
 minimize behaviour which is problematic
 with PythonCE (other PythonCE gui toolkits have the same problem regarding
 this).

 PPygui has already some inner logic, which makes the 'app.run()'
 line returns when the main frame is closed (with tMan), so it'll work well
 with it.

 Unfortunately the .pyw extension is buggy on PythonCE due to a mis-written
 registry key,
 You can fix it with a registry editor of your choice, by setting the key:
 HKEY_CLASSES_ROOT/Python.File.NoShell/Shell/Open/Command/Default =
 \Program Files\Python25\python.exe /nopcceshell %1


 You can also intercept the 'close' event at application level (but still
 need tMan to work)

 import ppygui as gui
 class MainFrame(gui.CeFrame):
  def __init__(self):
   gui.CeFrame.__init__(self, title='Hello')
   self.bind(close=self.on_close)

  def on_close(self, ev):
   if gui.Message.yesno('Confirmation','Do you want
 to quit','question', self) == 'yes':
 ev.skip() # If user say yes, let the close event be further processed
 by the default implementation which will close the window for good


 Hope this helps,
 Alexandre


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Re: [PythonCE] PPYGUI - parent window and closing it

[Alexandre Delattre]

Adam, there's one downside to not use tMan: even if the window disappear it is 
still running background and the only way to really close it is in the Memory 
app of the control panel.

But rejoice, following this discussion I've been able to modify ppygui so that 
windows are really closed even without tMan :)

Now, even a .py file will see it's terminal closed when the gui main frame is 
closed, without using tMan.

Expect to see the code in svn in a few hours.

Alexandre___
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Re: [PythonCE] PPYGUI - parent window and closing it

[Adam Walley]

Alexandre,

Thank you for this news. I will update things tomorrow and see if it works.
Just to be clear, when I originally tested my app, the Python shell launches
and the ppygui app opens on top of it. I was able to go into
settings/system/memory and close the Python shell without affecting the
normal operation of the ppygui. Also, when I exited my ppygui app using my
sys.exit() button everything closes correctly and is no longer resident - I
checked this in settings/system/memory. When I used the 'X' then both the
shell and the app would remain resident until I terminated them manually.
This also prevented me from running another app until I had done this.

Using the registry tweak, the Python shell is not visible and it does not
even appear in the list under settings/system/memory; only my app's name
appears. When I exit, everything is closed normally whether I use my own
sys.exit() button or the 'X' in the corner, and nothing remains in memory
(unless it somehow stays there without appearing in the system's list).

These are my experiences specific to my iPAQ1950 running WM5 and PythonCE
2.5, so other systems may not behave exactly this way (though PythonCE does
seem to be quite consistent).

Anyhow, I think this problem has been resolved, so thanks again.

Adam

On 10/07/2008, Alexandre Delattre [EMAIL PROTECTED]
wrote:

 Adam, there's one downside to not use tMan: even if the window disappear it
 is still running background and the only way to really close it is in the
 Memory app of the control panel.

 But rejoice, following this discussion I've been able to modify ppygui so
 that windows are really closed even without tMan :)

 Now, even a .py file will see it's terminal closed when the gui main frame
 is closed, without using tMan.

 Expect to see the code in svn in a few hours.

 Alexandre

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