How can i capture events fired by ACtiveX control. i am using RegEventCallback vi, but that controls user driven events. i have an activeX control that fires events at unspecified time, now i want to know how to handle such events in LabView.
Using the Register Event Callback VI is the correct method to capture events generated by an ActiveX control. Register Event Callback registers a VI to be called when the event occurs. I suggest checking out the LabVIEW Help articles Using ActiveX with LabVIEW and Register Event Callback as well as the following examples. I hope this helps!
Examples (all found in NI Example Finder):
ActiveX Event Callback for Excel VI: labview\examples\comm\axevent.llb
ActiveX Event Callback for IE VI: labview\examples\comm\axevent.llb
NET Event Callback for Calendar Control VI: labview\examples\comm\dotnet\Events.llb
NET Event Callback for DataWatcher VI: labview\examples\comm\dotnet\Events.llb
