Metrologic Optimus R, Programming Manual

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Chapter 3 Terminal Specific Function Library 79
3.7.3 FN Key
These are applicable to the Optimus R only.
GetFuncToggle Optimus R
Purpose
To get information of the FN key state.
Syntax int GetFuncToggle (void);
Example state = GetFuncToggle();
Description This routine gets the current state of the FN (function) key.
Return
The return value can be 0 ~ 3.
See Also SetFuncToggle
SetFuncToggle Optimus R
Purpose To set the state of the FN (function) key.
Syntax void SetFuncToggle (int state);
int state: /* FN key state */
Example SetFuncToggle (0) /* set the FN key unlocked */
Description This routine sets the current state of the FN key. It is set to be "unlocked" by
default.
The value of the parameter
state
can be one of the following:
0 Unlocked (default)
1 Locked
Return
None
See Also GetFuncToggle