CentOS7 system with screenshots of the tool, very convenient, you can choose to intercept the entire screen, or to intercept the current window, or selected areas, but the default shortcut keys are not my usual, have to change.
1, screenshot tool Location: Application (applications)-Tools (Utilities)-screenshot (screenshot)
2. Location of shortcut key settings: Application (applications)-System Tools-Setup (Settings)-Keyboard (keyboard)
3, switch to the shortcut key tab: Shortcut key (shortcuts), find screenshots (screenshots), click on the right to set the item, press the shortcut you want to set (no input)
For example: I often use the screenshot of the selected area (Save a screenshot of the "an" to Pictures), and I used more shortcuts is the QQ screenshot shortcut keys (ctrl+alt+a)
4, the screenshot will automatically deposit to the current user's picture folder (Pictures) under the default