Understanding Custom Marshaling Part 1

Lim Bio Liong

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18 Aug 2006CPOL31 min read

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Learn the fundamental principles of COM custom marshaling by code examples.

custommarshaling01_src.zip
- BasicSample01
  - Clients
    - VCConsoleClient01
      - ReadMe.txt
      - stdafx.cpp
      - stdafx.h
      - VCConsoleClient01.cpp
      - VCConsoleClient01.ncb
      - VCConsoleClient01.sln
      - VCConsoleClient01.vcproj
    - VCConsoleClient02
      - ReadMe.txt
      - stdafx.cpp
      - stdafx.h
      - VCConsoleClient02.cpp
      - VCConsoleClient02.ncb
      - VCConsoleClient02.sln
      - VCConsoleClient02.vcproj
    - VCConsoleClient03
      - ReadMe.txt
      - stdafx.cpp
      - stdafx.h
      - VCConsoleClient03.cpp
      - VCConsoleClient03.ncb
      - VCConsoleClient03.sln
      - VCConsoleClient03.vcproj
  - Implementations
    - BasicSample01InterfacesImpl
      - BasicSample01InterfacesImpl.aps
      - BasicSample01InterfacesImpl.cpp
      - BasicSample01InterfacesImpl.def
      - BasicSample01InterfacesImpl.h
      - BasicSample01InterfacesImpl.idl
      - BasicSample01InterfacesImpl.ncb
      - BasicSample01InterfacesImpl.rc
      - BasicSample01InterfacesImpl.rgs
      - BasicSample01InterfacesImpl.sln
      - BasicSample01InterfacesImpl.vcproj
      - BasicSample01InterfacesImpl.vcproj.vspscc
      - BasicSample01InterfacesImpl_i.c
      - BasicSample01InterfacesImpl_p.c
      - BasicSample01InterfacesImplps.def
      - BasicSample01InterfacesImplPS.vcproj
      - BasicSample01InterfacesImplPS.vcproj.vspscc
      - dlldata.c
      - ImmutableImpl.cpp
      - ImmutableImpl.h
      - ImmutableImpl.rgs
      - ImmutableObjectFactoryImpl.cpp
      - ImmutableObjectFactoryImpl.h
      - ImmutableObjectFactoryImpl.rgs
      - ReadMe.txt
      - Resource.h
      - stdafx.cpp
      - stdafx.h
  - Interfaces
    - BasicSample01Interfaces
      - BasicSample01Interfaces.aps
      - BasicSample01Interfaces.cpp
      - BasicSample01Interfaces.def
      - BasicSample01Interfaces.h
      - BasicSample01Interfaces.idl
      - BasicSample01Interfaces.ncb
      - BasicSample01Interfaces.rc
      - BasicSample01Interfaces.rgs
      - BasicSample01Interfaces.sln
      - BasicSample01Interfaces.vcproj
      - BasicSample01Interfaces.vcproj.vspscc
      - BasicSample01Interfaces_i.c
      - BasicSample01Interfaces_p.c
      - BasicSample01Interfacesps.def
      - BasicSample01InterfacesPS.vcproj
      - BasicSample01InterfacesPS.vcproj.vspscc
      - dlldata.c
      - Immutable.cpp
      - Immutable.h
      - Immutable.rgs
      - ImmutableObjectFactory.cpp
      - ImmutableObjectFactory.h
      - ImmutableObjectFactory.rgs
      - ReadMe.txt
      - Resource.h
      - stdafx.cpp
      - stdafx.h
- utilities

========================================================================
    CONSOLE APPLICATION : VCConsoleClient03 Project Overview
========================================================================

AppWizard has created this VCConsoleClient03 application for you.  
This file contains a summary of what you will find in each of the files that
make up your VCConsoleClient03 application.


VCConsoleClient03.vcproj
    This is the main project file for VC++ projects generated using an Application Wizard. 
    It contains information about the version of Visual C++ that generated the file, and 
    information about the platforms, configurations, and project features selected with the
    Application Wizard.

VCConsoleClient03.cpp
    This is the main application source file.

/////////////////////////////////////////////////////////////////////////////
Other standard files:

StdAfx.h, StdAfx.cpp
    These files are used to build a precompiled header (PCH) file
    named VCConsoleClient03.pch and a precompiled types file named StdAfx.obj.

/////////////////////////////////////////////////////////////////////////////
Other notes:

AppWizard uses "TODO:" comments to indicate parts of the source code you
should add to or customize.

/////////////////////////////////////////////////////////////////////////////

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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

Lim Bio Liong

Systems Engineer NEC

Singapore

Lim Bio Liong is a Specialist at a leading Software House in Singapore.

Bio has been in software development for over 10 years. He specialises in C/C++ programming and Windows software development.

Bio has also done device-driver development and enjoys low-level programming. Bio has recently picked up C# programming and has been researching in this area.

Understanding Custom Marshaling Part 1

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