ACS ACR89U-A1, Reference Manual

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ACR89U-A1 – Reference Manual
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Example: ( Not available for preliminary API )
4.2.5.3. AS_GetKeyInput
This function enables key input on the ACR89. This can be single key input or string input depending
on the options set in the KEYPADINPUT structure. The pressed keys will be returned in the following
format:
Mode Key Value
Numeric 0 ~ 9 0 ~ 9
Alphanumeric 0 ~ 9 ASCII code
All modes
Clear 0x10h
Enter 0x0Dh
F1 0x3Dh
F2 0x3Eh
F3 0x3Fh
F4 0x0Ch
Table 3 : Keypad Input Format
Notes
:
When a function key is pressed while in string input mode, the input is cancelled and the function
code is returned instead.
In string input mode, Enter will return the keys pressed and Clear will clear the last entered key.
In string input more, when the inputted string has been cleared completely, AS_KeyInput will return
with an empty string.
The direction keys will never be returned, but are only used for navigation of the cursor on the ACR89
LCD screen.
AS_STATUS AS_DECL AS_GetKeyInput (
IN INT nDevId,
IN PKEYPADINPUT pKeypadInput,
OUT PDATABLOCK pDataBlock);
N/A