How to start an App with the window Maximized

[happ...@gmail.com]

Hi everyone,

Can I ask help with this please? I'm figuring out a way to start the screen maximized in a desktop. I'm thinking that the user might get tired of always having to press the maximum window button. One of the solutions in code that I've found is:

from kivy.config import Config

Config.set('graphics', 'width', '1920')

Config.set('graphics', 'height', '1080')

However, this assumes you know the resolution, and even for lower resolution screens the app fills the screen. However with this, if the user clicks the maximize button on a screen with a smaller resolution than 1920x1080 the display will be too large.

Is there a way around this? Maybe:

1. A way in kivy to set the window to maximize? I can't find any, help!

2. In python get the current monitor's resolution? (this can be done by wxpython i think [http://stackoverflow.com/questions/3129322/how-do-i-get-monitor-resolution-in-python])

Thank you very much for any help!

Bernard

[Akshay Arora]

http://kivy.org/docs/api-kivy.config.html#available-configuration-tokens scroll down to  ->graphics ->fullscreen.

Best Regards

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[happ...@gmail.com]

Thanks! It works for a fullscreen view, is it possible though if I just want it maximized? I.e. the close, minimize, maximize buttons are still there?

[Niko Skrypnik]

I faced same problem. This works for me:

try: # this is only for pygame window if pygame is avaliable

    import pygame

    pygame.display.init()

    info = pygame.display.Info()

    width, height = info.current_w, info.current_h

    import ipdb; ipdb.set_trace()

    Config.set('graphics', 'width', str(width))

    Config.set('graphics', 'height', str(height))

except:

    pass

But it's very tricky. I hope that there are some more proper way to do it.

понедельник, 18 февраля 2013 г., 11:35:43 UTC+2 пользователь happybeej написал:

[Niko Skrypnik]

Oops, of course using ipdb is not necessary :-)

четверг, 25 апреля 2013 г., 13:04:30 UTC+3 пользователь Niko Skrypnik написал:

[Akshay Arora]

from kivy.app import App

from kivy.config import Config

Config.set('graphics', 'width', str(width))

Config.set('graphics', 'height', str(height))

# doing this before anything else makes sure the window width/height is set

import rest ...

Best Regards

[Aaron M. Bond]

For anyone else landing here, the new proper way to to do this is to use the Config setting graphics.window_state.

Per the documentation (https://kivy.org/doc/stable/api-kivy.config.html), any top level application settings should be set before other imports (this breaks PEP 8, so you may see some lint issues, depending on your editor or linter).

At the top of your file containing your __main__function, add this:

from kivy.config import COnfig

Config.set('graphics', 'window_state', 'maximized')

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[Bekhruz Otaev]

Love this response. Thank you very much. 

A small problem arose when kivy starts window minimized, it consoles out error when you close the screen:

 Traceback (most recent call last):

   File "C:\Users\behru\Desktop\hitaimen2\main_app\main.py", line 501, in <module>        

     mainApp.run()

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\app.py", line 950, in run

     runTouchApp()

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\base.py", line 584, in runTouchApp

     stopTouchApp()

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\base.py", line 625, in stopTouchApp

     EventLoop.close()

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\base.py", line 186, in close

     self.stop()

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\base.py", line 198, in stop

     provider.stop()

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\input\providers\wm_pen.py", line 114, in stop

     SetWindowLong_WndProc_wrapper(self.hwnd, self.old_windProc)

   File "C:\Users\behru\Desktop\hitaimen2\main_app\.env\lib\site-packages\kivy\input\providers\wm_common.py", line 112, in _closure

     oldAddr = func(hWnd, GWL_WNDPROC, cast(wndProc, c_void_p).value)

 ctypes.ArgumentError: argument 3: <class 'TypeError'>: wrong type

Does anyone know why?

[Bekhruz Otaev]

Here is the relevant question on stackoverflow: https://stackoverflow.com/q/68028136/13772586

[Elliot Garbus]

Looks like you found a bug.

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[ElliotG]

Here is a workaround.  I noticed if the Window is allowed to open in its default size, and is then minimized.  There is no error.  This example minimizes the WIndow after it is opened.  You could add a second or 2 and display some info, like a splash screen - and then minimize the window. 

from kivy.app import App

from kivy.uix.button import Button

from kivy.core.window import Window

from kivy.clock import Clock

class TestApp(App):

    def build(self):

        return Button(text='Hello World')

    def on_start(self):

        Clock.schedule_once(self.win_min, 0)  # increase time to create a splash screen effect...

    def win_min(self, dt):

        Window.minimize()

TestApp().run()