3-14 Chapter 3: Programming
NCR USB Keyboard Control Parameterization Registry Values
Program Parameterization Registry values appear under the registry
key:
[HKEY_LOCAL_MACHINE\SOFTWARE\NCR\USBKeyboard\PID_0320\]
Table 3: Key-Value Definitions
Keyword
1
Value (Decimal numbers) Default Registry
KeyClick\frequency
2
A frequency between
27Hz and 42192 Hz
1760 DWORD
KeyClick\volume
2
A value between 0
and 15
15 DWORD
KeyClick\duration
2
A number of
milliseconds (0 - 1023)
the sound should be
produced
23 DWORD
KeyMatrix\keynumber
3
A single keyboard
usage to be installed
for keynumber
per key
matrix
section for
PID_0320
DWORD
1
Keywords are not case sensitive.
2
The Keywords frequency, volume, and duration and their values as sent
to the keyboard tone device are written to the registry. This enables a
systems management program to determine current keyclick settings.
3
The keynumber value name is a decimal number that must be one of
the possible key numbers for the designated product. For example,
“SetKeyboardKeyEntry(0320)” requires the registry contain a key
named
HKLM\Software\NCR\USBKeyboard\PID_0320\KeyMatrix, and
under this key there must be one or more values with names “1”
through “128” that correspond to the key numbers.
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