# Connections for the FunctionKey ActiveX control

The following table shows the connections to control the operation of the FunctionKey ActiveX control at run time.

Connections | Descriptions
Trigger Required | When the assigned tag transitions from a zero to non-zero value, the control continuously reads the values of the other connections and sends function keys to the keyboard buffer. The connection can be a tag, tag placeholder "{#1}", or expression.
OnDelay Optional | This connection contains the time that any function key connection must be non-zero before the control will send a function key to the keyboard buffer. The display update rate hosting the ActiveX control must be at least two times faster than the value in this Connection. The connection data type is Integer. The minimum value is 200 MS. The connection can be a tag, tag placeholder "{#1}", or expression.
OffDelay Optional | This connection contains the time that any function key connection must return to a zero value before the control will detect the next zero to non-zero transition. The Display update rate hosting the ActiveX control must be at least two times faster than the value in this Connection. The connection data type is Integer. The minimum value is 200 MS.. The connection can be a tag, tag placeholder "{#1}", or expression.
F1 - F20 Optional | When the connection transitions from zero to non-zero, the control will send the associated function key (for example, F1, F6, F15) to the keyboard buffer. The connection must remain non-zero for a duration that exceeds the configured OnDelay connection, or 200 MS if OnDelay is not configured. The connection data type is Integer. The connection can be a tag, or tag placeholder "{#1}".
K1 - K20 Optional | When the connection transitions from zero to non-zero, the control will send the associated function key (for example, K3, K8, K17) to the keyboard buffer. The connection must remain non-zero for a duration that exceeds the configured OnDelay connection, or 200 MS if OnDelay is not configured. It is not possible to send Kx function keys to the keyboard buffer on a Windows desktop device. The connection data type is Integer. The connection can be a tag, or tag placeholder "{#1}".

## See also

FunctionKey ActiveX control