Parameters, Remark, Example in vb syntax – BECKHOFF CP9090-S100 User Manual

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TWIN

CAT

TriggerCheckOnChange

With this method you can trigger cyclic checking of the status of the SKeys or of the process data image (e.g.
with a multimedia timer).

HRESULT TriggerCheckOnChange();

Parameters

None

Remark

Every time the trigger method is called, then if the status of the process data input image or of the SKeys has
changed, the corresponding event - SKeyDown, SkeyPress or SKeyUp - is called.

Example in VB syntax

Private Sub Timer1_Timer()

Call BkCp9030W9x1.TriggerCheckOnChange

End Sub