"Notes" How does Ubuntu Linux 12.04 get the screenshot feature?

Through the web search I found that Ubuntu can also be like QQ, press Ctrl+alt+a can.

Use two points, 1 command 2 to set keyboard shortcuts

* First we look at the parameters of the command

Open a terminal, enter: $ gnome-screenshot-h

Get the following help text

　　　　

Here we choose the-a parameter, which is to grab an area of the screen.

* Then set keyboard shortcuts

Enter System-"preferences-" keyboard shortcut added in the command input gnome-screenshot-a
Name Self-setting
And then set the shortcut key is OK. To set a button, click the custom shortcut you just added and press the key combination

Thanks to the author of http://blog.csdn.net/liu_chunhai/article/details/6595207

"Notes" How does Ubuntu Linux 12.04 get the features?