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Java Native Access Platform

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/* Copyright (c) 2014 Dr David H. Akehurst (itemis), All Rights Reserved
 *
 * The contents of this file is dual-licensed under 2
 * alternative Open Source/Free licenses: LGPL 2.1 or later and
 * Apache License 2.0. (starting with JNA version 4.0.0).
 *
 * You can freely decide which license you want to apply to
 * the project.
 *
 * You may obtain a copy of the LGPL License at:
 *
 * http://www.gnu.org/licenses/licenses.html
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "LGPL2.1".
 *
 * You may obtain a copy of the Apache License at:
 *
 * http://www.apache.org/licenses/
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "AL2.0".
 */
package com.sun.jna.platform.win32.COM;

import com.sun.jna.platform.win32.Guid.IID;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.platform.win32.WinDef.DWORDByReference;
import com.sun.jna.platform.win32.WinNT.HRESULT;
import com.sun.jna.platform.win32.WinNT;

public interface IConnectionPoint extends IUnknown {
    final static IID IID_IConnectionPoint = new IID(
            "B196B286-BAB4-101A-B69C-00AA00341D07");

    /**
     *
     *
     * @param iid
     * @return interface pointer
     */
    HRESULT GetConnectionInterface(IID iid);

    /**
     *
     * When Advise is called, the called COM object will callback 'QueryInterface' asking for a number of
     * different interfaces, for example:
     *     - {00000003-0000-0000-C000-000000000046} - IMarshal
     *  - {00000003-0000-0000-C000-000000000046}
     *  - {0000001B-0000-0000-C000-000000000046} - IdentityUnmarshal
     *  - {00000000-0000-0000-C000-000000000046} - IUnknown
     *  - {00000018-0000-0000-C000-000000000046} - IStdMarshalInfo
     *  - {00000019-0000-0000-C000-000000000046} - IExternalConnection
     *  - {4C1E39E1-E3E3-4296-AA86-EC938D896E92} - (some unknown private interface)
     *  - interface of this ConnectionPoint
     *
     *
     * {@code
     *   HRESULT Advise(
     *     [in]   IUnknown *pUnkSink,
     *     [out]  DWORD *pdwCookie
     *     );
     * }
     *
     * @param pUnkSink
     * @param pdwCookie
     * @return status
     */
    WinNT.HRESULT Advise(IUnknownCallback pUnkSink, DWORDByReference pdwCookie);

    /**
     *
     * @param dwCookie
     * @return status
     */
    HRESULT Unadvise(DWORD dwCookie);
}