You are enjoying your new samsung galaxy s3 phone. You might want to take screenshot of the Galaxy S3 screen for whatever reason like posting it on to facebook or display it on your blog. It is easy to screen capture on this new Android Phone.
Samsung Galaxy S3 runs customized Google Android Ice Cream Sandwich Version. You don’t need to download any app or root your phone to take screenshots of your android phone screen.
Palm Swipe To Capture Screen
-Go to Menu->Settings->Motion settings on your phone
-Under “Hand Motion” settings, check “Palm swipe to Capture” checkbox
You can capture screen by moving your palm from left to right or right to left. This will take screenshot of the phone screen. Screenshot should be saved under “Gallery” app.
You can also capture screenshot by pressing and holding volume down button and click on power button simultaneously for a second or two.
There is a limitation with taking screenshot on galaxy s3, it might not work on the certain applications.
Also: look at how to screen capture on Samsung Galaxy S2