There are many ways to achieve the screenshot on pcDuino, but here we mainly recommend a very simple operation:
Open LXterminal, input:
sudo apt-get install gnome-screenshot
Then you can see the program installed. Run the Screenshot program then a screenshot window will pop up.
Here, you can choose separately, the entire desktop screenshot, interception of the current window and choose region screenshot. When screenshot completed you can heard a clicking sound, and automatically saved in the picture folder under your home directory.