nmoerchen Posted November 11, 2005 Report Share Posted November 11, 2005 Dear LVers, I am seaching for a way to implement a ActiveX dll with structures in LabVIEW. When I try to call a method with the Invoke Node functionality in LabVIEW the function name is visible (grayed) but not selectable ... I know, we could write a wrapper, but I hope there is any other solution. Greetings from Germany Norbert Quote Link to comment
Rolf Kalbermatter Posted November 18, 2005 Report Share Posted November 18, 2005 Dear LVers,I am seaching for a way to implement a ActiveX dll with structures in LabVIEW. When I try to call a method with the Invoke Node functionality in LabVIEW the function name is visible (grayed) but not selectable ... I know, we could write a wrapper, but I hope there is any other solution. I'm afraid not. ActiveX does not support marshalling arbitrary structure data. Since LabVIEW does completely rely on the COM infrastructure to setup and configure ActiveX nodes correctly according to the information in the type library it can't create the correct type mapping due to lack of support for defining structure types in the underlaying COM architecture. .Net seems to have support for structure definitions but that is of little help here. Rolf Kalbermatter Quote Link to comment
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