Capturing screen while Incoming Call on iPhone

Is it possible to capture screen (take screenshot) on iPhone (Using for example: UIGraphic开发者_运维技巧sBeginImageContext) while incoming call is in process or while the iPhone rings?

tnx.

---

Your app won't have access to the screen when the call is ringing.

• Press power and home buttons together to do a system screenshot?
• Use the screenshots section in the Xcode Organizer to capture the screen while tethered?

When a call is in progress you can press Home and re-open your app.

At that point you could use UIGraphicsBeginImageContext but it probably won't include the statusbar or green 'in progress' bar.