doctorpi wrote: What kind of country do you use to live? Nepal? The US, and despite having used keyboards since the ASR33 Teletype was considered state of the art, I've never seen a sun or moon key on any of them. But since you've clarified the meaning of your original post, such functionality is implemented in the keyboard driver software that is installed with the device. You could write a new driver for your keyboard, but it may be possible to write an application to intercept keycodes before Windows processes them and execute your own custom instructions for specific codes. A simple keyboard input scanner will help you to determine which keycodes to look for. Boredom, Bull$^%&, Baggage, Bar - all start with 'B'
Coincidence?