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Returns the current mode of the NUM LOCK key or sets the mode of the NUM LOCK key on or off.
NUMLOCK([lExpression]) |
Parameters
- lExpression
- Turns the NUM LOCK key on or off. If lExpression is true (.T.), the NUM LOCK key is turned on; if lExpression is false (.F.), the NUM LOCK key is turned off. NUMLOCK(В ) returns a logical value corresponding to the NUM LOCK key setting before NUMLOCK(.T.) or NUMLOCK(.F.) is issued.
Return Value
Logical
Remarks
NUMLOCK(В ) returns true (.T.) if the NUM LOCK key is on (pressing a key on the numeric keypad returns a number), or false (.F.) if NUM LOCK is off (pressing a key on the numeric keypad moves the cursor).
Example
In the following example, the equal sign (=) is used to execute NUMLOCK(В ) without returning a value.
| В |  Copy Code |
|---|---|
gcOldLock = NUMLOCK( ) && Save original setting WAIT WINDOW 'Press a key to turn Num Lock on' = NUMLOCK(.T.) && Turn Num Lock on WAIT WINDOW 'Press a key to turn Num Lock off' = NUMLOCK(!NUMLOCK( )) && Toggle Num Lock to the opposite value WAIT WINDOW 'Press a key to restore original Num Lock setting' = NUMLOCK(gcOldLock) && Return to original setting | |