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100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
/////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2002 Ultr@VNC. All Rights Reserved.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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//
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// If the source code for the program is not available from the place from
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// which you received this file, check
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// http://ultravnc.sourceforge.net/
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//
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////////////////////////////////////////////////////////////////////////////
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//
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// IF YOU USE THIS GPL SOURCE CODE TO MAKE YOUR DSM PLUGIN, PLEASE ADD YOUR
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// COPYRIGHT TO THE TOP OF THIS FILE AND SHORTLY DESCRIBE/EXPLAIN THE
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// MODIFICATIONS YOU'VE MADE. THANKS.
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//
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// IF YOU DON'T USE THIS CODE AS A BASE FOR YOUR PLUGIN, THE HEADER ABOVE AND
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// ULTR@VNC COPYRIGHT SHOULDN'T BE FOUND IN YOUR PLUGIN SOURCE CODE.
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//
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////////////////////////////////////////////////////////////////////////////
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//
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// Testplugin is a sample that shows the rules that a DSM Plugin for UltraVNC
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// must follow (Fonctions to export, their signatures, design constraints...)
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//
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// WARNING: As it is still beta, some rules might change in the near future
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//
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//
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// WARNING : In order to avoid multithreading issues with your DSM Plugin, it is recommended
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// (not to say mandatory...) to use 2 distincts contexts (buffers, structs, objects, keys on so on)
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// for "Tranformation" and "Restoration" operations.
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// Actually, 2 distinct mutexes are used at DSMPlugin.cpp level (one in the TransformBuffer
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// function, and the other in the RestoreBuffer function) so Transform and Restore events
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// may occur at the same time.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifdef TESTPLUGIN_EXPORTS
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#define TESTPLUGIN_API __declspec(dllexport)
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#else
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#define TESTPLUGIN_API __declspec(dllimport)
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#endif
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#include <stdlib.h>
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#include <windows.h>
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#include <memory.h>
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#include "resource.h"
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// Plugin struct example - Of course some classes can be used instead...
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typedef struct
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{
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char szDescription[256];
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int nMode;
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int nInternalParam1;
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int nInternalParam2; // And so on.. add what you need.
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} PLUGINSTRUCT;
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//
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// Internal local functions
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//
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BOOL MyStrToken(LPSTR szToken, LPSTR lpString, int nTokenNum, char cSep);
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int GiveTransDataLen(int nDataLen);
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int GiveRestDataLen(int nDataLen);
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BYTE* CheckLocalTransBufferSize(int nBufferSize);
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BYTE* CheckLocalRestBufferSize(int nBufferSize);
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// Config procs if necessary (the plugin is allowed to have no config dialog at all)
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BOOL CALLBACK ConfigDlgProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
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int DoDialog(void);
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//
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// A DSM Plugin MUST export (extern "C" - __cdecl) all the following functions
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// (same names, same signatures)
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extern "C"
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{
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TESTPLUGIN_API char* Description(void);
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TESTPLUGIN_API int Startup(void);
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TESTPLUGIN_API int Shutdown(void);
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TESTPLUGIN_API int Reset(void);
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TESTPLUGIN_API int SetParams(HWND hVNC, char* szParams);
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TESTPLUGIN_API char* GetParams(void);
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TESTPLUGIN_API BYTE* TransformBuffer(BYTE* pDataBuffer, int nDataLen, int* pnTransformedDataLen);
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TESTPLUGIN_API BYTE* RestoreBuffer(BYTE* pTransBuffer, int nTransDataLen, int* pnRestoredDataLen);
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TESTPLUGIN_API void FreeBuffer(BYTE* pBuffer);
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}
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