I have a main class and its two child classes. I want to dynamycally load the class, depending on what is set in the ini file. The product is a lvlibp, where I add the two child classes as Always included - so they are in the lvlibp but which is loaded, will be decided in run-time. For loading the class I use get LV CLass Default Value.vi. One of the child class uses a third party dll, the other class not. So I expect in run time, when the class without the dll is loaded, the dll must not be on the PC, as the class is not used. But it doesn't work, because if the dll is missing, the lvlibp won't work too, an error 1003 will be thrown. Is there any hints I am not aware?

LabVIEW

Factory pattern with dll in child class

Dynamic was actually an unfortunate word choice. The solution Builder lets you build a whole bunch of lvlibs into individual lvlibps and will take care about determining the dependency tree and start building from the most basic lvlib to the most dependent one and on also relink the dependencies too.

It’s a build tool not a magic on the fly edit and relink tool! And there is no way anyone could relink classes in lvlibps to other parent's at runtime. That step has to be performed before building the lvlibp. A lvlibp is for all purposes and intents strictly read only!

Rolf Kalbermatter
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