Dear all, I have a plugin system in my app based on interfaces (classes with only pure virtual functions). The app is compiled with mingw-w64 4.9.2 and works well with plugin dlls compiled with the same compiler.
Now I am trying to support MSVC compiled plugins. This works partially : the app can call the methods from interface objects provided by the DLL. However, if I pass a pointer on an interface class to one of the DLL methods, it does a segmentation fault. After debugging, I have seen this: *A is a pointer to an object deriving from InterfaceA , and created by the app. *B is a pointer to an object deriving from InterfaceB, and created by the dll >From the app, I call B->someMethod(A); and someMethod calls A->someOtherMethod() When I debug inside someOtherMethod (which is an app side method), "this" should point on *A, but it points on *B. Which causes the segmentation fault afterwards. Can this be an ABI issue? Thanks!
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