Rendering Kivy Window as Image

[Peter Milani]

Hi All,

I'm wanting to extract the kivy window render as an image so that I can send this to a hardware specific display driver, which only accepts images.

Specifically, I want to render using an Raspberry Pi on an eInk Screen from pimoroni. They have  a driver https://github.com/pimoroni/inky which works via the SPI and I2C interfaces on the Pi to update the screen.

Is there a way to extract an image that is to be rendered from the Kivy App instance or similar function?

cheers

Peter

[elli...@cox.net]

There are 2 options that come to mind. 

1. The widget method export_to_png(), you could apply this to the root widget to get the image. https://kivy.org/doc/stable/api-kivy.uix.widget.html#kivy.uix.widget.Widget.export_to_png 
2. The Window method screenshot.  https://kivy.org/doc/stable/api-kivy.core.window.html#kivy.core.window.WindowBase.screenshot

3. 
   

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Subject: [kivy-users] Rendering Kivy Window as Image

 

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[Peter Milani]

Thanks! For some reason I didn't get this email (or it went to spam) and was going to come back and post about the Window.screenshot. But thanks for the widget method too!