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How to Use IMessageFilter: the complete edition

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19 Feb 20066 min read 51.3K   536   23  
This article shows you exactly how to create a COM object that uses IMessageFilter - both in client and server sides.
 

/* this ALWAYS GENERATED file contains the proxy stub code */


 /* File created by MIDL compiler version 6.00.0361 */
/* at Tue Feb 14 10:13:18 2006
 */
/* Compiler settings for .\MessageFilterServer.idl:
    Oicf, W1, Zp8, env=Win32 (32b run)
    protocol : dce , ms_ext, c_ext, robust
    error checks: allocation ref bounds_check enum stub_data 
    VC __declspec() decoration level: 
         __declspec(uuid()), __declspec(selectany), __declspec(novtable)
         DECLSPEC_UUID(), MIDL_INTERFACE()
*/
//@@MIDL_FILE_HEADING(  )

#if !defined(_M_IA64) && !defined(_M_AMD64)


#pragma warning( disable: 4049 )  /* more than 64k source lines */
#if _MSC_VER >= 1200
#pragma warning(push)
#endif
#pragma warning( disable: 4100 ) /* unreferenced arguments in x86 call */
#pragma warning( disable: 4211 )  /* redefine extent to static */
#pragma warning( disable: 4232 )  /* dllimport identity*/
#define USE_STUBLESS_PROXY


/* verify that the <rpcproxy.h> version is high enough to compile this file*/
#ifndef __REDQ_RPCPROXY_H_VERSION__
#define __REQUIRED_RPCPROXY_H_VERSION__ 475
#endif


#include "rpcproxy.h"
#ifndef __RPCPROXY_H_VERSION__
#error this stub requires an updated version of <rpcproxy.h>
#endif // __RPCPROXY_H_VERSION__


#include "MessageFilterServer.h"

#define TYPE_FORMAT_STRING_SIZE   3                                 
#define PROC_FORMAT_STRING_SIZE   151                               
#define TRANSMIT_AS_TABLE_SIZE    0            
#define WIRE_MARSHAL_TABLE_SIZE   0            

typedef struct _MIDL_TYPE_FORMAT_STRING
    {
    short          Pad;
    unsigned char  Format[ TYPE_FORMAT_STRING_SIZE ];
    } MIDL_TYPE_FORMAT_STRING;

typedef struct _MIDL_PROC_FORMAT_STRING
    {
    short          Pad;
    unsigned char  Format[ PROC_FORMAT_STRING_SIZE ];
    } MIDL_PROC_FORMAT_STRING;


static RPC_SYNTAX_IDENTIFIER  _RpcTransferSyntax = 
{{0x8A885D04,0x1CEB,0x11C9,{0x9F,0xE8,0x08,0x00,0x2B,0x10,0x48,0x60}},{2,0}};


extern const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;
extern const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;


extern const MIDL_STUB_DESC Object_StubDesc;


extern const MIDL_SERVER_INFO IMyMessageFilter_ServerInfo;
extern const MIDL_STUBLESS_PROXY_INFO IMyMessageFilter_ProxyInfo;


extern const MIDL_STUB_DESC Object_StubDesc;


extern const MIDL_SERVER_INFO IServer_ServerInfo;
extern const MIDL_STUBLESS_PROXY_INFO IServer_ProxyInfo;



#if !defined(__RPC_WIN32__)
#error  Invalid build platform for this stub.
#endif

#if !(TARGET_IS_NT50_OR_LATER)
#error You need a Windows 2000 or later to run this stub because it uses these features:
#error   /robust command line switch.
#error However, your C/C++ compilation flags indicate you intend to run this app on earlier systems.
#error This app will die there with the RPC_X_WRONG_STUB_VERSION error.
#endif


static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString =
    {
        0,
        {

	/* Procedure block */

			0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/*  2 */	NdrFcLong( 0x0 ),	/* 0 */
/*  6 */	NdrFcShort( 0x6 ),	/* 6 */
/*  8 */	NdrFcShort( 0x8 ),	/* x86 Stack size/offset = 8 */
/* 10 */	NdrFcShort( 0x0 ),	/* 0 */
/* 12 */	NdrFcShort( 0x8 ),	/* 8 */
/* 14 */	0x44,		/* Oi2 Flags:  has return, has ext, */
			0x1,		/* 1 */
/* 16 */	0x8,		/* 8 */
			0x1,		/* Ext Flags:  new corr desc, */
/* 18 */	NdrFcShort( 0x0 ),	/* 0 */
/* 20 */	NdrFcShort( 0x0 ),	/* 0 */
/* 22 */	NdrFcShort( 0x0 ),	/* 0 */

	/* Return value */

/* 24 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
/* 26 */	NdrFcShort( 0x4 ),	/* x86 Stack size/offset = 4 */
/* 28 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Procedure unblock */

/* 30 */	0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/* 32 */	NdrFcLong( 0x0 ),	/* 0 */
/* 36 */	NdrFcShort( 0x7 ),	/* 7 */
/* 38 */	NdrFcShort( 0x8 ),	/* x86 Stack size/offset = 8 */
/* 40 */	NdrFcShort( 0x0 ),	/* 0 */
/* 42 */	NdrFcShort( 0x8 ),	/* 8 */
/* 44 */	0x44,		/* Oi2 Flags:  has return, has ext, */
			0x1,		/* 1 */
/* 46 */	0x8,		/* 8 */
			0x1,		/* Ext Flags:  new corr desc, */
/* 48 */	NdrFcShort( 0x0 ),	/* 0 */
/* 50 */	NdrFcShort( 0x0 ),	/* 0 */
/* 52 */	NdrFcShort( 0x0 ),	/* 0 */

	/* Return value */

/* 54 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
/* 56 */	NdrFcShort( 0x4 ),	/* x86 Stack size/offset = 4 */
/* 58 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Procedure registerMessageFilter */

/* 60 */	0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/* 62 */	NdrFcLong( 0x0 ),	/* 0 */
/* 66 */	NdrFcShort( 0x8 ),	/* 8 */
/* 68 */	NdrFcShort( 0x8 ),	/* x86 Stack size/offset = 8 */
/* 70 */	NdrFcShort( 0x0 ),	/* 0 */
/* 72 */	NdrFcShort( 0x8 ),	/* 8 */
/* 74 */	0x44,		/* Oi2 Flags:  has return, has ext, */
			0x1,		/* 1 */
/* 76 */	0x8,		/* 8 */
			0x1,		/* Ext Flags:  new corr desc, */
/* 78 */	NdrFcShort( 0x0 ),	/* 0 */
/* 80 */	NdrFcShort( 0x0 ),	/* 0 */
/* 82 */	NdrFcShort( 0x0 ),	/* 0 */

	/* Return value */

/* 84 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
/* 86 */	NdrFcShort( 0x4 ),	/* x86 Stack size/offset = 4 */
/* 88 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Procedure unregisterMessageFilter */

/* 90 */	0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/* 92 */	NdrFcLong( 0x0 ),	/* 0 */
/* 96 */	NdrFcShort( 0x9 ),	/* 9 */
/* 98 */	NdrFcShort( 0x8 ),	/* x86 Stack size/offset = 8 */
/* 100 */	NdrFcShort( 0x0 ),	/* 0 */
/* 102 */	NdrFcShort( 0x8 ),	/* 8 */
/* 104 */	0x44,		/* Oi2 Flags:  has return, has ext, */
			0x1,		/* 1 */
/* 106 */	0x8,		/* 8 */
			0x1,		/* Ext Flags:  new corr desc, */
/* 108 */	NdrFcShort( 0x0 ),	/* 0 */
/* 110 */	NdrFcShort( 0x0 ),	/* 0 */
/* 112 */	NdrFcShort( 0x0 ),	/* 0 */

	/* Return value */

/* 114 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
/* 116 */	NdrFcShort( 0x4 ),	/* x86 Stack size/offset = 4 */
/* 118 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Procedure Foo */

/* 120 */	0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/* 122 */	NdrFcLong( 0x0 ),	/* 0 */
/* 126 */	NdrFcShort( 0x3 ),	/* 3 */
/* 128 */	NdrFcShort( 0x8 ),	/* x86 Stack size/offset = 8 */
/* 130 */	NdrFcShort( 0x0 ),	/* 0 */
/* 132 */	NdrFcShort( 0x8 ),	/* 8 */
/* 134 */	0x44,		/* Oi2 Flags:  has return, has ext, */
			0x1,		/* 1 */
/* 136 */	0x8,		/* 8 */
			0x1,		/* Ext Flags:  new corr desc, */
/* 138 */	NdrFcShort( 0x0 ),	/* 0 */
/* 140 */	NdrFcShort( 0x0 ),	/* 0 */
/* 142 */	NdrFcShort( 0x0 ),	/* 0 */

	/* Return value */

/* 144 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
/* 146 */	NdrFcShort( 0x4 ),	/* x86 Stack size/offset = 4 */
/* 148 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

			0x0
        }
    };

static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString =
    {
        0,
        {
			NdrFcShort( 0x0 ),	/* 0 */

			0x0
        }
    };


/* Object interface: IUnknown, ver. 0.0,
   GUID={0x00000000,0x0000,0x0000,{0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46}} */


/* Object interface: IMessageFilter, ver. 0.0,
   GUID={0x00000016,0x0000,0x0000,{0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46}} */


/* Object interface: IMyMessageFilter, ver. 0.0,
   GUID={0x6190E283,0x415D,0x4143,{0xBA,0x29,0x54,0xAC,0xC5,0x80,0xF4,0xA3}} */

#pragma code_seg(".orpc")
static const unsigned short IMyMessageFilter_FormatStringOffsetTable[] =
    {
    (unsigned short) -1,
    (unsigned short) -1,
    (unsigned short) -1,
    0,
    30,
    60,
    90
    };

static const MIDL_STUBLESS_PROXY_INFO IMyMessageFilter_ProxyInfo =
    {
    &Object_StubDesc,
    __MIDL_ProcFormatString.Format,
    &IMyMessageFilter_FormatStringOffsetTable[-3],
    0,
    0,
    0
    };


static const MIDL_SERVER_INFO IMyMessageFilter_ServerInfo = 
    {
    &Object_StubDesc,
    0,
    __MIDL_ProcFormatString.Format,
    &IMyMessageFilter_FormatStringOffsetTable[-3],
    0,
    0,
    0,
    0};
CINTERFACE_PROXY_VTABLE(10) _IMyMessageFilterProxyVtbl = 
{
    &IMyMessageFilter_ProxyInfo,
    &IID_IMyMessageFilter,
    IUnknown_QueryInterface_Proxy,
    IUnknown_AddRef_Proxy,
    IUnknown_Release_Proxy ,
    0 /* (void *) (INT_PTR) -1 /* IMessageFilter::HandleInComingCall */ ,
    0 /* (void *) (INT_PTR) -1 /* IMessageFilter::RetryRejectedCall */ ,
    0 /* (void *) (INT_PTR) -1 /* IMessageFilter::MessagePending */ ,
    (void *) (INT_PTR) -1 /* IMyMessageFilter::block */ ,
    (void *) (INT_PTR) -1 /* IMyMessageFilter::unblock */ ,
    (void *) (INT_PTR) -1 /* IMyMessageFilter::registerMessageFilter */ ,
    (void *) (INT_PTR) -1 /* IMyMessageFilter::unregisterMessageFilter */
};


static const PRPC_STUB_FUNCTION IMyMessageFilter_table[] =
{
    STUB_FORWARDING_FUNCTION,
    STUB_FORWARDING_FUNCTION,
    STUB_FORWARDING_FUNCTION,
    NdrStubCall2,
    NdrStubCall2,
    NdrStubCall2,
    NdrStubCall2
};

CInterfaceStubVtbl _IMyMessageFilterStubVtbl =
{
    &IID_IMyMessageFilter,
    &IMyMessageFilter_ServerInfo,
    10,
    &IMyMessageFilter_table[-3],
    CStdStubBuffer_DELEGATING_METHODS
};


/* Object interface: IServer, ver. 0.0,
   GUID={0x64695A63,0xA3C0,0x44B8,{0x82,0xF6,0xFC,0xB5,0xEE,0xE0,0xEC,0x21}} */

#pragma code_seg(".orpc")
static const unsigned short IServer_FormatStringOffsetTable[] =
    {
    120
    };

static const MIDL_STUBLESS_PROXY_INFO IServer_ProxyInfo =
    {
    &Object_StubDesc,
    __MIDL_ProcFormatString.Format,
    &IServer_FormatStringOffsetTable[-3],
    0,
    0,
    0
    };


static const MIDL_SERVER_INFO IServer_ServerInfo = 
    {
    &Object_StubDesc,
    0,
    __MIDL_ProcFormatString.Format,
    &IServer_FormatStringOffsetTable[-3],
    0,
    0,
    0,
    0};
CINTERFACE_PROXY_VTABLE(4) _IServerProxyVtbl = 
{
    &IServer_ProxyInfo,
    &IID_IServer,
    IUnknown_QueryInterface_Proxy,
    IUnknown_AddRef_Proxy,
    IUnknown_Release_Proxy ,
    (void *) (INT_PTR) -1 /* IServer::Foo */
};

const CInterfaceStubVtbl _IServerStubVtbl =
{
    &IID_IServer,
    &IServer_ServerInfo,
    4,
    0, /* pure interpreted */
    CStdStubBuffer_METHODS
};

static const MIDL_STUB_DESC Object_StubDesc = 
    {
    0,
    NdrOleAllocate,
    NdrOleFree,
    0,
    0,
    0,
    0,
    0,
    __MIDL_TypeFormatString.Format,
    1, /* -error bounds_check flag */
    0x50002, /* Ndr library version */
    0,
    0x6000169, /* MIDL Version 6.0.361 */
    0,
    0,
    0,  /* notify & notify_flag routine table */
    0x1, /* MIDL flag */
    0, /* cs routines */
    0,   /* proxy/server info */
    0   /* Reserved5 */
    };

const CInterfaceProxyVtbl * _MessageFilterServer_ProxyVtblList[] = 
{
    ( CInterfaceProxyVtbl *) &_IServerProxyVtbl,
    ( CInterfaceProxyVtbl *) &_IMyMessageFilterProxyVtbl,
    0
};

const CInterfaceStubVtbl * _MessageFilterServer_StubVtblList[] = 
{
    ( CInterfaceStubVtbl *) &_IServerStubVtbl,
    ( CInterfaceStubVtbl *) &_IMyMessageFilterStubVtbl,
    0
};

PCInterfaceName const _MessageFilterServer_InterfaceNamesList[] = 
{
    "IServer",
    "IMyMessageFilter",
    0
};

const IID *  _MessageFilterServer_BaseIIDList[] = 
{
    0,
    &IID_IMessageFilter,
    0
};


#define _MessageFilterServer_CHECK_IID(n)	IID_GENERIC_CHECK_IID( _MessageFilterServer, pIID, n)

int __stdcall _MessageFilterServer_IID_Lookup( const IID * pIID, int * pIndex )
{
    IID_BS_LOOKUP_SETUP

    IID_BS_LOOKUP_INITIAL_TEST( _MessageFilterServer, 2, 1 )
    IID_BS_LOOKUP_RETURN_RESULT( _MessageFilterServer, 2, *pIndex )
    
}

const ExtendedProxyFileInfo MessageFilterServer_ProxyFileInfo = 
{
    (PCInterfaceProxyVtblList *) & _MessageFilterServer_ProxyVtblList,
    (PCInterfaceStubVtblList *) & _MessageFilterServer_StubVtblList,
    (const PCInterfaceName * ) & _MessageFilterServer_InterfaceNamesList,
    (const IID ** ) & _MessageFilterServer_BaseIIDList,
    & _MessageFilterServer_IID_Lookup, 
    2,
    2,
    0, /* table of [async_uuid] interfaces */
    0, /* Filler1 */
    0, /* Filler2 */
    0  /* Filler3 */
};
#if _MSC_VER >= 1200
#pragma warning(pop)
#endif


#endif /* !defined(_M_IA64) && !defined(_M_AMD64)*/

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Written By
Ohad Redlich
Israel Israel
working for Intel

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Posted 12 Feb 2006

Article Copyright 2006 by Ohad Redlich
Everything else Copyright © CodeProject, 1999-2024

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