How does my keyboard recognize which PC it connect(windows or MAC)

Question

Dear Nordic Engineers 
 How can keyboard recognize which PC it connect(windows or MAC)? 
 If the PC is a window, left bottom key are "alt" or "win" and other 
 If the PC is a MAC ,left bottom key are "cmd" or "option" and other 
 Best regards 
 Ted

ovrebekk · Accepted Answer

Hi Ted 
 I don't think there is any way to get information about the host over USB, unless you add some driver or program on the PC side that writes a custom packet over USB with information about the host. Then you would need to implement a driver for Windows and a different one for Mac to set up the keyboard accordingly. 
 As an example Logitech provides a small software utility with their keyboard/mouse products in order to provide more configuration options. 
 When using ESB I assume you have a USB receiver dongle connected to the PC/Mac? Then the limitation is the same as with USB. With ESB you can always send some custom data back to the keyboard if you want to, the question is how to get this information over the USB interface to the dongle. 
 According to this article it should be possible to use Windows keyboards on a Mac, but it does seem like you have to do a bit of configuration work on the Mac side for the best experience. 
 I would like to discuss this topic a bit more with some of my colleagues, and I will try to get back to you with more information later in the week. 
 Best regards Torbjørn

How does my keyboard recognize which PC it connect(windows or MAC)

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