[rtl] keyboard scan

[Reg Dunlop <dunlopgr@mech.canterbury.ac.nz>]

Hi,

Does anyone have some code for scanning the keyboard so that I can 
read what key is pressed (held down) without having to also enter 
"enter". 

The application is jogging the position of a robot so we want the 
response while a key (eg the up arrow key) is held down. Having to 
continually press the key, and then press enter is problematic.

Any assistance would be greatly apreciated. 

Thanks

Reg Dunlop
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