Passing COM Interface Pointers

To pass a COM interface pointer, you must generate a Java/COM interface class using a tool such as jactivex.exe. You can then pass or receive COM interfaces by declaring a parameter to be of that interface type.

For example, the system class com.ms.com.IStream is a Java/COM interface that represents the Structured Storage IStream* interface. The OLE32 function CreateStreamOnHGlobal could be declared as follows:

import com.ms.com.*;
/** @dll.import("OLE32", ole) */
public static native IStream CreateStreamOnHGlobal(int hGlobal,
                                     boolean fDeleteOnRelease);