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I certainly understand how a webpage is composited. Do you think that browsers can currently "get access to the content" being displayed by plugins like Flash

• shmerl 13y ago
  If browsers don't, your window managers surely do. So you can capture the screen with ease. In order to avoid that, Windows created a whole chain of DRM which prevents user from accessing it. This will never be possible on free software systems.
• pyalot2 13y ago
  Yes. The embedd API defines a way for the browser to pass a framebuffer for flash to draw in (a framebuffer is just a buffer of pixels). It uses this 60x a second to composit with the page.