Parameters, Comment, Sample vb-syntax – BECKHOFF CP9090-S100 User Manual
Page 44: Onchangeinimage, Twin cat
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44
TWIN
CAT
OnChangeInImage
Occurs once when the process input image changes.
HRESULT OnChangeInImage(
[in] long PhysOffset
);
Parameters
PhysOffset
Byte-Offset of input image of CP9030 (0x0000 … 0x01FF) which changed
Comment
To avoid unnecessary cyclic polling of e.g. SKey-status, you can implement event-driven code in this event.
Sample VB-Syntax
Sub CP9030W9x1_OnChangeInImage(ByVal PhysOffset as Long)
' add code here
End Sub
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