> I try to talk with Python to a LabVIEW-Application called
> "cbt" via ActiveX.
>
> Now I´m running into problem calling the "Call" method.
>
> Here´s the code:
> ------------
> import win32com.client
> oLv = win32com.client.Dispatch("cbt.Application")
Try either
oLv = win32com.client.gencache.EnsureDispatch("cbt.Application")
or:
> strVi = oLv.ApplicationDirectory + "\\cbt.exe\\" + "cdcAxLogPrint.vi"
>
> # retrieving the reference to the VI to be called via "Call"
> oViLogPrint = oLv.GetVIReference(strVi,"",True)
>
> arIn = ["strEntry","Error"]
> arOut = ["Hello World",True]
>
obViLogPrint._FlagAsMethod("Call")
> oViLogPrint.Call(arIn,arOut)
> ------------
> The resulting error message:
> oViLogPrint.Call(arIn,arOut)
> TypeError: 'NoneType' object is not callable
The problem is that .Call is being interpreted as a property reference
rather than a method call. The former should trigger early-binding, which
should avoid the problem. If that doesn't work, the latter is still using
late-binding, but offering a hint to win32com that Call is a method rather
than a property.
Mark
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