What features does Windows 8 my app have access to?

For example, the travel app might use your location to help you identify interesting landmarks nearby, the photo app might use your photo gallery to create slideshows, and the instant messaging app might use a camera connected to your computer for video chat.
View the features that the app has access to:
1. On the "Start” screen, tap or click “app store” to open the Windows Store.
2. Search or browse the app and tap or click on it.
3. You can see a simplified version of this permission list on the left side of the description page, or you can read the full permission list by clicking or clicking on “Details”.
Note: After installing the app on your computer, you can see a list of permissions for the app. In this application, swipe from the right edge of the screen to the middle, click “Set" (If you use the mouse, point to the top right corner of the screen, move the mouse pointer down, then click “Set”), then Click or click "Permissions".