# vispy.app.backends package

## Subpackages

- vispy.app.backends.tests package
  - Submodules
    - vispy.app.backends.tests.test_offscreen_util module
    - vispy.app.backends.tests.test_rfb module
  - Module contents

## Module contents

vispy.app.backends

The backend modules are dynamically imported when needed. This module defines a small description of each supported backend, so that for instance we can test whether the GUI toolkit for a backend is already imported. This stuff is mostly used in the Application.use method.

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