How To Take A Screenshot or Screen Capture With The BlackBerry Curve
Unfortunately, there is no way to natively take a screenshot on a BlackBerry Curve 
However, users can use apps like Capture It or Screen Muncher to take screenshots.
How To Take A Screenshot or Screen Capture With The Redmi Note To take a screenshot or screen capture with the Redmi Note: Hold down the POWER button and the VOLUME DOWN button....
HTC ONE X+ (HTC One X PLUS) To take a screenshot or screen capture on the HTC One X+, simply: Hold down the POWER and VOLUME DOWN buttons simultaneously. An alternative method is to hold down the POWER and HOME buttons. The image will appear in the SCREENSHOT folder in the GALLERY app....
How To Take A Screenshot or Screen Capture With The Motorola Moto X To take a screenshot or screen capture with the Motorola Moto X: Hold down the POWER and VOLUME DOWN key at the same time. You will hear a shutter sound if the screenshot has been taken successfully. The screenshot will appear in Apps>Gallery>Screenshots ...
How To Take A Screenshot or Screen Capture With The Alcatel One Touch Magic To take a screenshot or screen capture with the Alcatel One Touch Press and hold the VOLUME DOWN and POWER buttons at the same time....