var screenOrientation = {}; screenOrientation.setOrientation = function (orientation) { var orientationNumber; switch (orientation) { case 'landscape': orientationNumber = 5; break; case 'portrait': orientationNumber = 10; break; case 'landscape-primary': orientationNumber = 1; break; case 'landscape-secondary': orientationNumber = 4; break; case 'portrait-primary': orientationNumber = 2; break; case 'portrait-secondary': orientationNumber = 8; break; case 'unlocked': orientationNumber = 0; break; default: break; } Windows.Graphics.Display.DisplayInformation.autoRotationPreferences = orientationNumber; }; module.exports = screenOrientation;