Interoperability Warnings

Interoperability warnings support interacting with COM clients.

In This Section

• Auto layout types should not be COM visible

• Avoid Int64 arguments for Visual Basic 6 clients

• Avoid non-public fields in COM visible value types

• Avoid overloads in COM visible interfaces

• Avoid static members in COM visible types

• Call GetLastError immediately after P/Invoke

• COM registration methods should be matched

• COM registration methods should not be visible

• COM visible type base types should be COM visible

• Com visible types should be creatable

• Declare P/Invokes correctly

• Do not use AutoDual ClassInterfaceType

• Mark boolean P/Invoke arguments with MarshalAs

• Mark ComSource interfaces as IDispatch

• P/Invoke entry points should exist

• P/Invokes should not be visible