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Gentlemen: I need to work with a TLB for a finite element pre/post processor called Femap. Its API was built for Visual Basic, and it uses output arguments in many of its functions/methods. Methods with only input arguments and return values work great, but I can't get anywhere with those that have output arguments. Here's the documentation for a method 'Count' of the class 'feSelector': Count ( entityType, nSelected ) Description: This method returns the number of entities of a given type that are currently selected Input: INT4 entityType The entity type to query (node, element, etc) Output: INT4 nSelected The number of "entityType" entities that are currently selected. Return Code: None Here's the code makepy.py generated for this method: def count(self, entityTYPE=defaultNamedNotOptArg, nSelected=pythoncom.Missing): return self._ApplyTypes_(20002, 1, (3, 0), ((3, 1), (16387, 2)), 'count', None,entityTYPE , nSelected) >From all the documentation I've been able to find (including the archives of this mailing list back to September 2005), my Python call should look like this: nSel = zSelect.count(eFemTyps.FT_NODE) When I try that, I get: Traceback (most recent call last): File "<interactive input>", line 1, in <module> File "<COMObject feSelector>", line 2, in count com_error: (-2147352561, 'Parameter not optional.', None, None) I've tried supplying the extra parameter, but that results in a 'type mismatch' error, which probably doesn't surprise anyone. Can someone help? Thanks, Greg Antal -- Gregory W. Antal Senior Technical Advisor ATA Engineering, Inc. 11995 El Camino Real, Suite 200 San Diego, CA 92130 www.ata-e.com [EMAIL PROTECTED] 858-480-2072 (Phone) 858-792-8932 (Fax) |
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