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

/*********************************************************
   DllData file -- generated by MIDL compiler 

        DO NOT ALTER THIS FILE

   This file is regenerated by MIDL on every IDL file compile.

   To completely reconstruct this file, delete it and rerun MIDL
   on all the IDL files in this DLL, specifying this file for the
   /dlldata command line option

*********************************************************/

#define PROXY_DELEGATION

#include <rpcproxy.h>

#ifdef __cplusplus
extern "C"   {
#endif

EXTERN_PROXY_FILE( BasicSample01InterfacesImpl )


PROXYFILE_LIST_START
/* Start of list */
  REFERENCE_PROXY_FILE( BasicSample01InterfacesImpl ),
/* End of list */
PROXYFILE_LIST_END


DLLDATA_ROUTINES( aProxyFileList, GET_DLL_CLSID )

#ifdef __cplusplus
}  /*extern "C" */
#endif

/* end of generated dlldata file */

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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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