If you want the get a screenshot on your Android mobile you can do that simply by holding down the power + volume down button for one second.
In Eclipse to capturing an image from your Android device or simulator go to the DDMS perspective. In Eclipse go to the menu Window -> Open Perspective -> Other… -> DDMS -> OK.
Locate the Devices window. Default position is on the left side.
Select your mobile or emulator on the list, depending on how many devices you have connected select the one you want to take a screen dump from. Afterwards hit the camera icon on the top right corner of the devices window. A new window will open and look something like this:
Now if it’s the desired image press save. Now you can navigate to the desired image on your phone, hit refresh in the device screen capture and save the new image.