const invariant = require("invariant"); const React = require("react-native"); const { NativeModules: { UIManager } } = React; const {GLCanvas} = UIManager; invariant(GLCanvas, `gl-react-native: the native module is not available. Make sure you have properly configured it. See README install instructions. React.NativeModules.UIManager.GLCanvas is %s`, GLCanvas); const {Commands} = GLCanvas; module.exports = handle => UIManager.dispatchViewManagerCommand(handle, Commands.captureFrame, []);