Just thought I'd put this out there ... if you want to replace gnome-screenshot's default bindings for the PrtScr button, cause shutter is preferable ... then do the following:
- open System Settings - keyboard - shortcuts - System - Screenshots
- click "Take a screenshot of an area" and then in the keyboard bindings section select the existing binding and click <backspace> to remove the binding
- click "Take a screenshot" and then in the keyboard bindings section select the existing binding and click <backspace> to remove the binding
- click "Take a screenshot of a window" and then in the keyboard bindings section select the existing binding and click <backspace> to remove the binding
Now I will assume that you've already installed Shutter.
- open System Settings - keyboard - shortcuts - Custom Shortcuts
- click "Add custom shortcut" and Name it something like "Area Screenshot" and the command is "shutter -s"
- click on the first bindings slot and press <shift>+<print> at the same time
- click "Add custom shortcut" and Name it something like "Full Screenshot" and the command is "shutter -f"
- click on the first bindings slot and press <print>
- click "Add custom shortcut" and Name it something like "Window Screenshot" and the command is "shutter -w"
- click on the first bindings slot and press <alt>+<print> at the same time ... for me this binding would NOT work. No matter how i tried to press the key combination. Just couldn't get the binding to stick. So therefore I closed up the Keyboard applet/window/popup/whatever-u-wanna-call-it and i did the ol' <ALT>+F2 and ran the "r" command to restart cinnamon. then I opened the dconf-editor and went to org.cinnamon.desktop.keybindings.custom-keybindings and therein i saw my 2 new entries. I then selected the entry that coincided with "Window Screenshot" and entered the following as my binding (i.e. typed by hand) ['<Alt>Print']
Voila! Gold!