Keyboard input, more then 6 keys?

I have made a simple two player game, that uses the GetAsyncKeyState API to get keyboard input.
But when more then 6 keys are pressed simultaneously, the speaker beeps, and the program freezes for half a second.

Also, when UP, LEFT, R and G are pressed only R orG are detected (I use RDFG for player 2 controls)

This seems to apply not only in my game, is it a limitation/bug of Windows?
Does anyone know what to do about this?

I do not know, but I have noticed the same thing in the past.

It is actually a limitation of your keyboard. It is only possible to press a small number of keys at one time before it stops working. It is the same for all operating systems (as far as I know).

Z.

Hi, it sounds like your KB buffer may be full. I am not exactly
sure how to correct that (assuming it can be corrected) without
re-writing the KB driver; however, as far as detecting which
keys are depressed and such, you may have better results
by implementing a WH_GETMESSAGE hook and keeping track
of key states yourself rather than relying on the API to do it.

-CC