Custom Marshaling 

A custom marshaler enables you to precisely control the way in which a managed type is exposed to COM or an unmanaged type is exposed to the .NET Framework. You use a custom marshaler instead of the interop marshaler, which the common language runtime provides by default.

In This Section

• Custom Marshaling Overview
  Describes the custom marshalers at a high level.

• Defining the Marshaling Type
  Describes how to prepare the interfaces involved in setting up a custom marshaler.

• Implementing the ICustomMarshaler Interface
  Describes the options in preparing a custom marshaler.

• Using a Substitute Marshaler
  Describes how to use the MarshalAsAttribute attribute to insert a custom marshaler.

Related Sections

• Interop Marshaling
  Describes marshaling for COM interop and platform invoke.