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I have two Keyboards connected to a single computer (both with USB cable).
I want two Users to work with one Computer with two Keyboards, one works just with my application, with one specific Keyboard and another user, can use the other Keyboard while working with the other software. Keyboard ports never changes.
is it possible friends ? and how can i do that?
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Check for hardware problems Verify the keyboard is plugged in securely. Disconnect the keyboard from the computer and reconnect it to the same port. If you have a USB keyboard, you may also want to try a different USB port to isolate the issue.
Power management settings in your computer may be disrupting your USB ports. USB Selective Suspend can deactivate a USB port when not in use in order to save battery life, but can also sometimes disable the port when you're trying to use it. When this happens, you can go into Power Options and turn off the setting.
http://www.codeproject.com/Articles/17123/Using-Raw-Input-from-C-to-handle-multiple-keyboard
I used this for a project a while back, this should do it.
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