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Programming—Chapter 7
293700 Series Color Mobile Computer User’s Manual
Alpha (Blue) Plane
The alpha plane contains values from the keypad when the keypad has
beenplacedinalphamodebypressingthebluealphakey,suchasthefol-
lowing:
Press the Keys
Numeric Keypad Alphanumeric Keypad To Enter This
[Alpha] F
1
[Alpha]
dg
Caps
[Alpha] F
5
[Alpha]
dJ
j
[Alpha] F
9
[Alpha]
dW
w
Key Values
Key values for each plane are stored in the registry. All units ship with a
default key mapping already loaded in the registry. Applications that wish
to change the default mapping need to read the appropriate key from the
registry into an array of Words, modify the values required and then write
the updated values back into the registry. The registry access can be done
with standard Microsoft API calls, such as RegOpenKeyEx(),
RegQueryValueEx(), and RegSetValueEx().
Numeri c Keypad
For the 700 Color Numeric Keypad, the following registry keys contain
the plane mappings:
S Theunshiftedplanemappingcanbefoundintheregistryat:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD\Vkey
S The gold plane mapping can be found in the registry at:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD\VkeyGold
S Thealphaplanemappingcanbefoundintheregistryat:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD\VkeyAlpha
Alphanumeric Keypad
For the 700 Color Alphanumeric Keypad, the following registry keys con-
tain the plane mappings:
S Theunshiftedplanemappingcanbefoundintheregistryat:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD\ALPHA\Vkey
S The gold plane mapping can be found in the registry at:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD\ALPHA\VkeyGold
S Thealphaplanemappingcanbefoundintheregistryat:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD\ALPHA\VkeyAlpha