Click here to Skip to main content
11,641,087 members (59,019 online)
Click here to Skip to main content
Add your own
alternative version

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

, 23 Jun 2002 117.1K 1.9K 57
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.
system_tray_demo.zip
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
system_tray_src.zip
// SystemTrayDemo.cpp : Implementation of DLL Exports.


// Note: Proxy/Stub Information
//      To merge the proxy/stub code into the object DLL, add the file 
//      dlldatax.c to the project.  Make sure precompiled headers 
//      are turned off for this file, and add _MERGE_PROXYSTUB to the 
//      defines for the project.  
//
//      If you are not running WinNT4.0 or Win95 with DCOM, then you
//      need to remove the following define from dlldatax.c
//      #define _WIN32_WINNT 0x0400
//
//      Further, if you are running MIDL without /Oicf switch, you also 
//      need to remove the following define from dlldatax.c.
//      #define USE_STUBLESS_PROXY
//
//      Modify the custom build rule for SystemTrayDemo.idl by adding the following 
//      files to the Outputs.
//          SystemTrayDemo_p.c
//          dlldata.c
//      To build a separate proxy/stub DLL, 
//      run nmake -f SystemTrayDemops.mk in the project directory.

#include "stdafx.h"
#include "resource.h"
#include <initguid.h>
#include "SystemTrayDemo.h"
#include "dlldatax.h"

#include "SystemTrayDemo_i.c"
#include "MyServer.h"

#ifdef _MERGE_PROXYSTUB
extern "C" HINSTANCE hProxyDll;
#endif

CComModule _Module;

BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_MyServer, CMyServer)
END_OBJECT_MAP()

/////////////////////////////////////////////////////////////////////////////
// DLL Entry Point

extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
    lpReserved;
#ifdef _MERGE_PROXYSTUB
    if (!PrxDllMain(hInstance, dwReason, lpReserved))
        return FALSE;
#endif
    if (dwReason == DLL_PROCESS_ATTACH)
    {
        _Module.Init(ObjectMap, hInstance, &LIBID_SYSTEMTRAYDEMOLib);
        DisableThreadLibraryCalls(hInstance);
    }
    else if (dwReason == DLL_PROCESS_DETACH)
        _Module.Term();
    return TRUE;    // ok
}

/////////////////////////////////////////////////////////////////////////////
// Used to determine whether the DLL can be unloaded by OLE

STDAPI DllCanUnloadNow(void)
{
#ifdef _MERGE_PROXYSTUB
    if (PrxDllCanUnloadNow() != S_OK)
        return S_FALSE;
#endif
    return (_Module.GetLockCount()==0) ? S_OK : S_FALSE;
}

/////////////////////////////////////////////////////////////////////////////
// Returns a class factory to create an object of the requested type

STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
#ifdef _MERGE_PROXYSTUB
    if (PrxDllGetClassObject(rclsid, riid, ppv) == S_OK)
        return S_OK;
#endif
    return _Module.GetClassObject(rclsid, riid, ppv);
}

/////////////////////////////////////////////////////////////////////////////
// DllRegisterServer - Adds entries to the system registry

STDAPI DllRegisterServer(void)
{
#ifdef _MERGE_PROXYSTUB
    HRESULT hRes = PrxDllRegisterServer();
    if (FAILED(hRes))
        return hRes;
#endif
    // registers object, typelib and all interfaces in typelib
    return _Module.RegisterServer(TRUE);
}

/////////////////////////////////////////////////////////////////////////////
// DllUnregisterServer - Removes entries from the system registry

STDAPI DllUnregisterServer(void)
{
#ifdef _MERGE_PROXYSTUB
    PrxDllUnregisterServer();
#endif
    return _Module.UnregisterServer(TRUE);
}


By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

Share

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!

You may also be interested in...

| Advertise | Privacy | Terms of Use | Mobile
Web03 | 2.8.150731.1 | Last Updated 24 Jun 2002
Article Copyright 2002 by Jon Taylor
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid