Actxcontrol - data transfer to an instrument
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Hello,
I need a help regarding a format for a variable to transfer input data to my instrument.
I am trying to communicate via ActiveX with my instrument (Raman microspectroscope). When I enter
LabSpec = actxcontrol('NFACTIVEX.NFActiveXCtrl.1', [15 15 410 390]);
LabSpec.invoke
It says
PutValue(handle, int32, ustring, Variant(Pointer))
Given this, when I enter
PutValue(LabSpec, 0, 'ShutterMode', 1)
It says
Error using COM.NFACTIVEX_NFActiveXCtrl_1/PutValue
Error: Type mismatch, argument 3
I think the last argument was incorrectly inserted. If I need to give "1" (for the argument 3) to the instrument, what type of variable should I use for "Variant(Pointer)"?
Anyone has a good suggestion?
Thanks!
Kang
回答 (1 件)
Pratheek Punchathody
2021 年 2 月 16 日
As a workaround to this, If the control does not have UI interaction involved, you can load the control using 'actxserver' in invisible mode and call its properties and methods on your demand. The difference between 'actxcontrol' and 'actxserver' is there will be no figure window. But you are still able to get a handle of control in MATLAB. For more details with 'actxserver',
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