Plugin System – an alternative to GetProcAddress and interfaces

Ivo Beltchev

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25 May 2007CPOL10 min read

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A powerful and extensible way of creating plugin-based applications

pluginsystem_src.zip
- defmaker.exe
- defmaker
  - defmaker.cpp
  - defmaker.dsp
  - defmaker.dsw
  - defmaker.sln
  - defmaker.vcproj
- DLL+EXE
  - BMPParser
    - BMPParser.cpp
    - BMPParser.dsp
    - BMPParser.vcproj
  - Host.dsw
  - Host.sln
  - Host
    - Host.cpp
    - Host.dsp
    - Host.h
    - Host.vcproj
    - ImageParser.cpp
    - ImageParser.h
  - HostExe.dsp
  - HostExe.vcproj
  - Main.cpp
  - Release
    - BMPParser.imp
    - Host.dll
    - HostExe.exe
    - TGAParser.imp
  - TGAParser
    - TGAParser.cpp
    - TGAParser.dsp
    - TGAParser.vcproj
- EXE
  - BMPParser
    - BMPParser.cpp
    - BMPParser.dsp
    - BMPParser.vcproj
  - Host.cpp
  - Host.dsp
  - Host.dsw
  - Host.h
  - Host.sln
  - Host.vcproj
  - ImageParser
    - ImageParser.cpp
    - ImageParser.dsp
    - ImageParser.h
    - ImageParser.vcproj
  - Release
    - BMPParser.imp
    - Host.exe
    - TGAParser.imp
  - TGAParser
    - TGAParser.cpp
    - TGAParser.dsp
    - TGAParser.vcproj
- Interface
  - BMPParser
    - BMPParser.cpp
    - BMPParser.dsp
    - BMPParser.vcproj
  - Host.cpp
  - Host.dsp
  - Host.dsw
  - Host.sln
  - Host.vcproj
  - ImageParser.h
  - Release
    - BMPParser.imp
    - Host.exe
    - TGAParser.imp
  - TGAParser
    - TGAParser.cpp
    - TGAParser.dsp
    - TGAParser.vcproj
- readme.rtf
- TestImage1.bmp
- TestImage2.tga
pluginsystem_src-noexe.zip
- readme.rtf
- TestImage1.bmp
- TestImage2.tga

// Host.h - defines the host API
//
// Part of the Plugin System tutorial
//
///////////////////////////////////////////////////////////////////////////////

#ifndef _HOST_H
#define _HOST_H

#ifdef COMPILE_HOST
#define HOSTAPI __declspec(dllexport) // when the host is compiling
#else
#define HOSTAPI __declspec(dllimport) // when the plugins are compiling
#endif

// adds the parser to the g_Parsers list
void AddParser( class CImageParser *parser );

#endif

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

Ivo Beltchev

Software Developer (Senior)

United States

Ivo started programming in 1985 on an Apple ][ clone. He graduated from Sofia University, Bulgaria with a MSCS degree. Ivo has been working as a professional programmer for over 12 years, and as a professional game programmer for over 10. He is currently employed in Pandemic Studios, a video game company in Los Angeles, California.

Plugin System – an alternative to GetProcAddress and interfaces

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