I’m trying to use a .net plugin in a delphi 2010 host application. I have created 3 interfaces in .net library and then imported them into delphi project. Everything compiles, but during run-time the plugin gets loaded and starts, but when I query for my own interface the result is always nil. The interface is derived from IHYCrossPlatformInterface and the import also looks fine.
If I make it a standard interface (in .net) and then use delphi .net component importer, everything works. Hydra version is 4.0.75.1101.
Looks like the problem is with the importer:
C# function: void AddParam(int aValue);
delphi import: procedure AddParam(const aValue: LongInt); // during runtime, interface not supported
Then I tried changing it manually to this (in delphi): procedure AddParam(aValue: LongInt); // works as expected
If I change C# function to this it imports with the “const” and works as expected: void AddParam([In] int aValue);