A4Tech G9 Mouse acts like two USB devices are connected. One is the mouse and the other one is the keyboard. For more information open the terminal and run:
egrep "Name|Handlers" /proc/bus/input/devices
For all buttons and scroll it works like a mouse...
But when you click the Hot Key, the mouse acts like a keyboard.
Here is what it does:
- It checks something (I don't know how, HID does not have too many things to check, maybe by using KeymapNotify Event)
- Then it sends keyboard instruction - super_L + r (win + r) - Enter - www.win2.cn/g9 - Enter
xev to display contents of X events in the terminal I have found so far.
Maybe, that the button try to run a pop-up application, and the mouse sends a keyboard [1-9] set for the gesture.