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Placing an icon in the system tray from an ATL COM server - with minimum hassle

, 23 Jun 2002
This article describes a helper class that assists with placing an icon in the shell (aka "system tray"), and changing the tip text. You can get this functionality by simply deriving your ATL object from the helper class.
Icon1.ico
icon2.ico
icon3.ico
icon4.ico
MyServer.rgs
SystemTrayDemo.def
SystemTrayDemo.dsp
SystemTrayDemo.dsw
SystemTrayDemo.opt
SystemTrayDemops.def
SystemTrayDemops.mk
ShellTest.vbw
ShellTest.exe
ShellTest.frm
ShellTest.vbp
MSSCCPRJ.SCC
/* this ALWAYS GENERATED file contains the proxy stub code */


/* File created by MIDL compiler version 5.01.0164 */
/* at Thu Jun 20 11:24:35 2002
 */
/* Compiler settings for C:\jon\SystemTrayDemo\SystemTrayDemo.idl:
    Oicf (OptLev=i2), W1, Zp8, env=Win32, ms_ext, c_ext
    error checks: allocation ref bounds_check enum stub_data 
*/
//@@MIDL_FILE_HEADING(  )

#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__ 440
#endif


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


#include "SystemTrayDemo.h"

#define TYPE_FORMAT_STRING_SIZE   37                                
#define PROC_FORMAT_STRING_SIZE   91                                

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;


extern const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;
extern const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;


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


/* Object interface: IDispatch, ver. 0.0,
   GUID={0x00020400,0x0000,0x0000,{0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46}} */


/* Object interface: IMyServer, ver. 0.0,
   GUID={0x838B9A00,0x5C66,0x45E6,{0x8A,0x8F,0x00,0x1D,0x82,0xEC,0x42,0xDC}} */


extern const MIDL_STUB_DESC Object_StubDesc;


extern const MIDL_SERVER_INFO IMyServer_ServerInfo;

#pragma code_seg(".orpc")
extern const USER_MARSHAL_ROUTINE_QUADRUPLE UserMarshalRoutines[1];

static const MIDL_STUB_DESC Object_StubDesc = 
    {
    0,
    NdrOleAllocate,
    NdrOleFree,
    0,
    0,
    0,
    0,
    0,
    __MIDL_TypeFormatString.Format,
    1, /* -error bounds_check flag */
    0x20000, /* Ndr library version */
    0,
    0x50100a4, /* MIDL Version 5.1.164 */
    0,
    UserMarshalRoutines,
    0,  /* notify & notify_flag routine table */
    1,  /* Flags */
    0,  /* Reserved3 */
    0,  /* Reserved4 */
    0   /* Reserved5 */
    };

static const unsigned short IMyServer_FormatStringOffsetTable[] = 
    {
    (unsigned short) -1,
    (unsigned short) -1,
    (unsigned short) -1,
    (unsigned short) -1,
    0,
    28,
    62
    };

static const MIDL_SERVER_INFO IMyServer_ServerInfo = 
    {
    &Object_StubDesc,
    0,
    __MIDL_ProcFormatString.Format,
    &IMyServer_FormatStringOffsetTable[-3],
    0,
    0,
    0,
    0
    };

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

CINTERFACE_PROXY_VTABLE(10) _IMyServerProxyVtbl = 
{
    &IMyServer_ProxyInfo,
    &IID_IMyServer,
    IUnknown_QueryInterface_Proxy,
    IUnknown_AddRef_Proxy,
    IUnknown_Release_Proxy ,
    0 /* (void *)-1 /* IDispatch::GetTypeInfoCount */ ,
    0 /* (void *)-1 /* IDispatch::GetTypeInfo */ ,
    0 /* (void *)-1 /* IDispatch::GetIDsOfNames */ ,
    0 /* IDispatch_Invoke_Proxy */ ,
    (void *)-1 /* IMyServer::SetText */ ,
    (void *)-1 /* IMyServer::Animate */ ,
    (void *)-1 /* IMyServer::Visible */
};


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

CInterfaceStubVtbl _IMyServerStubVtbl =
{
    &IID_IMyServer,
    &IMyServer_ServerInfo,
    10,
    &IMyServer_table[-3],
    CStdStubBuffer_DELEGATING_METHODS
};

#pragma data_seg(".rdata")

static const USER_MARSHAL_ROUTINE_QUADRUPLE UserMarshalRoutines[1] = 
        {
            
            {
            BSTR_UserSize
            ,BSTR_UserMarshal
            ,BSTR_UserUnmarshal
            ,BSTR_UserFree
            }

        };


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

#if !(TARGET_IS_NT40_OR_LATER)
#error You need a Windows NT 4.0 or later to run this stub because it uses these features:
#error   -Oif or -Oicf, [wire_marshal] or [user_marshal] attribute, more than 32 methods in the interface.
#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 SetText */

			0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/*  2 */	NdrFcLong( 0x0 ),	/* 0 */
/*  6 */	NdrFcShort( 0x7 ),	/* 7 */
#ifndef _ALPHA_
/*  8 */	NdrFcShort( 0xc ),	/* x86, MIPS, PPC Stack size/offset = 12 */
#else
			NdrFcShort( 0x18 ),	/* Alpha Stack size/offset = 24 */
#endif
/* 10 */	NdrFcShort( 0x0 ),	/* 0 */
/* 12 */	NdrFcShort( 0x8 ),	/* 8 */
/* 14 */	0x6,		/* Oi2 Flags:  clt must size, has return, */
			0x2,		/* 2 */

	/* Parameter Text */

/* 16 */	NdrFcShort( 0x8b ),	/* Flags:  must size, must free, in, by val, */
#ifndef _ALPHA_
/* 18 */	NdrFcShort( 0x4 ),	/* x86, MIPS, PPC Stack size/offset = 4 */
#else
			NdrFcShort( 0x8 ),	/* Alpha Stack size/offset = 8 */
#endif
/* 20 */	NdrFcShort( 0x1a ),	/* Type Offset=26 */

	/* Return value */

/* 22 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
#ifndef _ALPHA_
/* 24 */	NdrFcShort( 0x8 ),	/* x86, MIPS, PPC Stack size/offset = 8 */
#else
			NdrFcShort( 0x10 ),	/* Alpha Stack size/offset = 16 */
#endif
/* 26 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Procedure Animate */

/* 28 */	0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/* 30 */	NdrFcLong( 0x0 ),	/* 0 */
/* 34 */	NdrFcShort( 0x8 ),	/* 8 */
#ifndef _ALPHA_
/* 36 */	NdrFcShort( 0x10 ),	/* x86, MIPS, PPC Stack size/offset = 16 */
#else
			NdrFcShort( 0x20 ),	/* Alpha Stack size/offset = 32 */
#endif
/* 38 */	NdrFcShort( 0xe ),	/* 14 */
/* 40 */	NdrFcShort( 0x8 ),	/* 8 */
/* 42 */	0x4,		/* Oi2 Flags:  has return, */
			0x3,		/* 3 */

	/* Parameter Animate */

/* 44 */	NdrFcShort( 0x48 ),	/* Flags:  in, base type, */
#ifndef _ALPHA_
/* 46 */	NdrFcShort( 0x4 ),	/* x86, MIPS, PPC Stack size/offset = 4 */
#else
			NdrFcShort( 0x8 ),	/* Alpha Stack size/offset = 8 */
#endif
/* 48 */	0x6,		/* FC_SHORT */
			0x0,		/* 0 */

	/* Parameter Duration */

/* 50 */	NdrFcShort( 0x48 ),	/* Flags:  in, base type, */
#ifndef _ALPHA_
/* 52 */	NdrFcShort( 0x8 ),	/* x86, MIPS, PPC Stack size/offset = 8 */
#else
			NdrFcShort( 0x10 ),	/* Alpha Stack size/offset = 16 */
#endif
/* 54 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Return value */

/* 56 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
#ifndef _ALPHA_
/* 58 */	NdrFcShort( 0xc ),	/* x86, MIPS, PPC Stack size/offset = 12 */
#else
			NdrFcShort( 0x18 ),	/* Alpha Stack size/offset = 24 */
#endif
/* 60 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

	/* Procedure Visible */

/* 62 */	0x33,		/* FC_AUTO_HANDLE */
			0x6c,		/* Old Flags:  object, Oi2 */
/* 64 */	NdrFcLong( 0x0 ),	/* 0 */
/* 68 */	NdrFcShort( 0x9 ),	/* 9 */
#ifndef _ALPHA_
/* 70 */	NdrFcShort( 0xc ),	/* x86, MIPS, PPC Stack size/offset = 12 */
#else
			NdrFcShort( 0x18 ),	/* Alpha Stack size/offset = 24 */
#endif
/* 72 */	NdrFcShort( 0x6 ),	/* 6 */
/* 74 */	NdrFcShort( 0x8 ),	/* 8 */
/* 76 */	0x4,		/* Oi2 Flags:  has return, */
			0x2,		/* 2 */

	/* Parameter Visible */

/* 78 */	NdrFcShort( 0x48 ),	/* Flags:  in, base type, */
#ifndef _ALPHA_
/* 80 */	NdrFcShort( 0x4 ),	/* x86, MIPS, PPC Stack size/offset = 4 */
#else
			NdrFcShort( 0x8 ),	/* Alpha Stack size/offset = 8 */
#endif
/* 82 */	0x6,		/* FC_SHORT */
			0x0,		/* 0 */

	/* Return value */

/* 84 */	NdrFcShort( 0x70 ),	/* Flags:  out, return, base type, */
#ifndef _ALPHA_
/* 86 */	NdrFcShort( 0x8 ),	/* x86, MIPS, PPC Stack size/offset = 8 */
#else
			NdrFcShort( 0x10 ),	/* Alpha Stack size/offset = 16 */
#endif
/* 88 */	0x8,		/* FC_LONG */
			0x0,		/* 0 */

			0x0
        }
    };

static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString =
    {
        0,
        {
			NdrFcShort( 0x0 ),	/* 0 */
/*  2 */	
			0x12, 0x0,	/* FC_UP */
/*  4 */	NdrFcShort( 0xc ),	/* Offset= 12 (16) */
/*  6 */	
			0x1b,		/* FC_CARRAY */
			0x1,		/* 1 */
/*  8 */	NdrFcShort( 0x2 ),	/* 2 */
/* 10 */	0x9,		/* Corr desc: FC_ULONG */
			0x0,		/*  */
/* 12 */	NdrFcShort( 0xfffc ),	/* -4 */
/* 14 */	0x6,		/* FC_SHORT */
			0x5b,		/* FC_END */
/* 16 */	
			0x17,		/* FC_CSTRUCT */
			0x3,		/* 3 */
/* 18 */	NdrFcShort( 0x8 ),	/* 8 */
/* 20 */	NdrFcShort( 0xfffffff2 ),	/* Offset= -14 (6) */
/* 22 */	0x8,		/* FC_LONG */
			0x8,		/* FC_LONG */
/* 24 */	0x5c,		/* FC_PAD */
			0x5b,		/* FC_END */
/* 26 */	0xb4,		/* FC_USER_MARSHAL */
			0x83,		/* 131 */
/* 28 */	NdrFcShort( 0x0 ),	/* 0 */
/* 30 */	NdrFcShort( 0x4 ),	/* 4 */
/* 32 */	NdrFcShort( 0x0 ),	/* 0 */
/* 34 */	NdrFcShort( 0xffffffe0 ),	/* Offset= -32 (2) */

			0x0
        }
    };

const CInterfaceProxyVtbl * _SystemTrayDemo_ProxyVtblList[] = 
{
    ( CInterfaceProxyVtbl *) &_IMyServerProxyVtbl,
    0
};

const CInterfaceStubVtbl * _SystemTrayDemo_StubVtblList[] = 
{
    ( CInterfaceStubVtbl *) &_IMyServerStubVtbl,
    0
};

PCInterfaceName const _SystemTrayDemo_InterfaceNamesList[] = 
{
    "IMyServer",
    0
};

const IID *  _SystemTrayDemo_BaseIIDList[] = 
{
    &IID_IDispatch,
    0
};


#define _SystemTrayDemo_CHECK_IID(n)	IID_GENERIC_CHECK_IID( _SystemTrayDemo, pIID, n)

int __stdcall _SystemTrayDemo_IID_Lookup( const IID * pIID, int * pIndex )
{
    
    if(!_SystemTrayDemo_CHECK_IID(0))
        {
        *pIndex = 0;
        return 1;
        }

    return 0;
}

const ExtendedProxyFileInfo SystemTrayDemo_ProxyFileInfo = 
{
    (PCInterfaceProxyVtblList *) & _SystemTrayDemo_ProxyVtblList,
    (PCInterfaceStubVtblList *) & _SystemTrayDemo_StubVtblList,
    (const PCInterfaceName * ) & _SystemTrayDemo_InterfaceNamesList,
    (const IID ** ) & _SystemTrayDemo_BaseIIDList,
    & _SystemTrayDemo_IID_Lookup, 
    1,
    2,
    0, /* table of [async_uuid] interfaces */
    0, /* Filler1 */
    0, /* Filler2 */
    0  /* Filler3 */
};

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About the Author

Jon Taylor
Web Developer
United Kingdom United Kingdom
I first started tinkering with a ZX81 back in 1981 and it's lovely blocky graphics, teaching myself Z80 assembler and BASIC. I come from a hardware background and electronics - I started out in embedded software for avionics but soon moved onto PC platforms.

Java and C++ are my prefered language but also dabble in VB and .NET.

I'm a team leader with Nokia developing Series 40 features - it's a cool place to work!

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Article Copyright 2002 by Jon Taylor
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