hxdllaccess.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxdllaccess.h,v 1.3.2.4 2004/07/09 01:45:08 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _HXDLLACCESS_H_
- #define _HXDLLACCESS_H_
- /****************************************************************************
- * Defines:
- */
- /****************************************************************************
- * DLL types:
- */
- #define HXDLLTYPE_NOT_DEFINED 0 // Arbitrary DLLs (no predefined path used)
- #define HXDLLTYPE_PLUGIN 1 // Plug-ins
- #define HXDLLTYPE_CODEC 2 // Codecs
- #define HXDLLTYPE_ENCSDK 3 // Encoder SDK DLLs
- #define HXDLLTYPE_COMMON 4 // Common libraries
- #define HXDLLTYPE_UPDATE 5 // Setup/Upgrade libraries
- // HXDLLTYPEs 5-10 are reserved for backward compatibility reasons
- /****************************************************************************
- * Service specific error codes:
- */
- #define HXDLL_OK 0
- #define HXDLL_NO_LOAD 1
- #define HXDLL_BAD_SYMBOL 2
- #define HXDLL_OUT_OF_MEMORY 3
- /****************************************************************************
- * Dll default version key
- */
- #define HXDLL_DFLT_VERSION 0xFFFFFFFF
- /****************************************************************************
- *
- * Interface:
- *
- * IHXDllAccess
- *
- * Purpose:
- *
- * Interface for DLL Access
- *
- * IID_IHXDllAccess
- *
- * {D5A71AA1-A6ED-479f-9FC6-F06B99142691}
- *
- */
- DEFINE_GUID(IID_IHXDllAccess,
- 0xd5a71aa1, 0xa6ed, 0x479f, 0x9f, 0xc6, 0xf0, 0x6b, 0x99, 0x14, 0x26, 0x91);
- #define CLSID_IHXDllAccess IID_IHXDllAccess
- #undef INTERFACE
- #define INTERFACE IHXDllAccess
- DECLARE_INTERFACE_(IHXDllAccess, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /*
- * IHXDllAccess methods
- */
- /************************************************************************
- * Method:
- * IHXDllAccess::Open()
- * Purpose:
- * Open a Dll of the specified name and type.
- */
- STDMETHOD(Open) (THIS_
- const char* pDllName,
- UINT16 uLibType
- ) PURE;
- /************************************************************************
- * Method:
- * IHXDllAccess::Close()
- * Purpose:
- * Close opened Dll.
- */
- STDMETHOD(Close) (THIS) PURE;
- /************************************************************************
- * Method:
- * IHXDllAccess::GetSymbol()
- * Purpose:
- * Obtain pointer to symbol in opened Dll.
- */
- STDMETHOD_(void*, GetSymbol) (THIS_
- const char* pSymbolName
- ) PURE;
- /************************************************************************
- * Method:
- * IHXDllAccess::GetError()
- * Purpose:
- * Get service specific error code (0 = no error).
- */
- STDMETHOD_(ULONG32,GetError) (THIS) PURE;
- /************************************************************************
- * Method:
- * IHXDllAccess::GetErrorString()
- * Purpose:
- * Get last error string.
- */
- STDMETHOD_(const char*, GetErrorString) (THIS) PURE;
- /************************************************************************
- * Method:
- * IHXDllAccess::GetDllName()
- * Purpose:
- * Get opened Dll name
- */
- STDMETHOD_(const char*, GetDllName) (THIS) PURE;
- /************************************************************************
- * Method:
- * IHXDllAccess::GetDllVersion()
- * Purpose:
- * Get opened Dll vesion
- */
- STDMETHOD_(const char*, GetDllVersion) (THIS) PURE;
-
- /************************************************************************
- * Method:
- * IHXDllAccess::IsOpen()
- * Purpose:
- * Tells if Dll is opened:
- * TRUE = dll is opened
- * FALSE = dll is not opened
- */
- STDMETHOD_(BOOL,IsOpen) (THIS) PURE;
- };
- #include "hxtsmartpointer.h"
- HXT_MAKE_SMART_PTR(IHXDllAccess)
- #endif // _HXDLLACCESS_H_