hxdllaccess.h
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:6k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 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
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (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.
- *
- * 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;
- };
- #endif // _HXDLLACCESS_H_