How To Take A Screenshot With Blackberry Curve 9320
Unfortunately, there is no way to natively take a screenshot on a BlackBerry Curve 9320 
However, users can download apps like Capture It or Screen Muncher to take screenshots.
How To Take A Screenshot or Screen Capture With The HTC One To take a screenshot or screen capture with the HTC One, simply: Hold down the VOLUME DOWN button and the POWER button for a few seconds. The screenshot will appear in the /screenshots folder or in the gallery....
How To Take A Screenshot or Screen Capture With The Oppo R7 To take a screenshot or screen capture with the Oppo R7 Press and hold the VOLUME DOWN and POWER buttons at the same time....
How To Take A Screenshot or Screen Capture With The Redmi 2 To take a screenshot or screen capture with the Redmi 2: Hold down the POWER button and the HOME button....
How To Take A Screenshot or Screen Capture With The Motorola Droid Razr HD: To take a screenshot or screen capture with the Motorola Droid Razr Maxx, simply: Hold down the POWER button, found at the top of the phone, and the Volume Down button found on the right side of the phone....