Struggling with swAddMateError_e Enumeration in Python

SOLIDWORKS API
1

Greetings all,

I got a wild hair to apply my rudimentary python skills to write macros for SolidWorks.

I’m making good progress. Some interesting gyrations to jump through, but I’m establishing a good book of knowledge to use in the future.

But I’m hamstrung on the longstatus parameter used in AddMate3 https://help.solidworks.com/2015/english/api/sldworksapi/SOLIDWORKS.Interop.sldworks~SOLIDWORKS.Interop.sldworks.IAssemblyDoc~AddMate3.html

In the VBA script that I’m using as a go-by, longstatus is defined as:

Dim longstatus as SwConst.swAddMateError_e

I’ve created a python class with the swAddMateError_e enum, to use in defining longstatus, but every variation I use gets kicked back.

I’ve tried to set longstatus to 0, which technically should work, but get a type mismatch.

Help!

Bently

2

If I understand correctly, this is relatively common with solidworks constants. If you convert them to an integer wherever you use them, they should work.

This example is with c# but any constants need to be cast to an integer. Any variables that are returned by solidworks functions, such as the errors and warnings, are defined as integers.
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3

Thanks.

Well with the untyped nature of python, you have to assign a value to longstatus prior to usage.

I’ve tried casting longstatus to an int using int(), but I get the following:

pywintypes.com_error:(-2147352571, ‘Type mismatch.’, None, 13)

I’ve looked around and can’t find any reference to this… :frowning:

thanks

Bently

4

Argh…

Playing with the VBA code that I’m translating, if I replace longstatus with 0, it works just fine.

Need a pulling hair out emoji…

5

Got it…

Thanks to http://joshuaredstone.blogspot.com/2015/

longstatus = win32com.client.VARIANT(pythoncom.VT_BYREF | prythoncom.VT_I4, 1)

jeebus…

6

That’s an interesting workaround. Glad you found the answer!