Source code of Windows XP (NT5)
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//+-------------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (C) Microsoft Corporation, 1999 - 1999
//
// File: mmcshext.cpp
//
//--------------------------------------------------------------------------
// mmcshext.cpp : Implementation of DLL Exports.
// Note: Proxy/Stub Information
// To build a separate proxy/stub DLL,
// run nmake -f mmcshextps.mk in the project directory.
#include "stdafx.h"
#include "resource.h"
#include <initguid.h>
#include <shlobj.h>
#include <shlguid.h>
#include "Extract.h"
#include "hhcwrap.h"
#include "picon.h"
#include "modulepath.h"
#include <atlimpl.cpp>
CComModule _Module;
static void RemovePathFromInProcServerEntry (REFCLSID rclsid);
BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_ExtractIcon, CExtractIcon)
OBJECT_ENTRY(CLSID_HHCollectionWrapper, CHHCollectionWrapper)
END_OBJECT_MAP()
/////////////////////////////////////////////////////////////////////////////
// DLL Entry Point
extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
_Module.Init(ObjectMap, hInstance);
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)
{
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)
{
return _Module.GetClassObject(rclsid, riid, ppv);
}
/////////////////////////////////////////////////////////////////////////////
// DllRegisterServer - Adds entries to the system registry
STDAPI DllRegisterServer(void)
{
// registers object, typelib and all interfaces in typelib
HRESULT hr = _Module.RegisterServer(FALSE);
if (hr == S_OK)
{
// remove full module path that ATL adds by default
RemovePathFromInProcServerEntry(CLSID_ExtractIcon);
RemovePathFromInProcServerEntry(CLSID_HHCollectionWrapper);
}
return hr;
}
/////////////////////////////////////////////////////////////////////////////
// DllUnregisterServer - Removes entries from the system registry
STDAPI DllUnregisterServer(void)
{
return _Module.UnregisterServer();
}
static void RemovePathFromInProcServerEntry (REFCLSID rclsid)
{
// Convert the CLSID to a string
USES_CONVERSION;
LPOLESTR lpOleStr;
HRESULT hr = StringFromCLSID (rclsid, &lpOleStr);
if (FAILED(hr))
return;
if (lpOleStr != NULL)
{
// Re-register the InProcServer key without the path
TCHAR szSubKey[MAX_PATH];
_tcscpy (szSubKey, _T("CLSID\\"));
_tcscat (szSubKey, OLE2T(lpOleStr));
_tcscat (szSubKey, _T("\\InprocServer32"));
CoTaskMemFree(lpOleStr);
::ATL::CRegKey regkey;
long lRes = regkey.Open(HKEY_CLASSES_ROOT, szSubKey);
ASSERT(lRes == ERROR_SUCCESS);
if (lRes == ERROR_SUCCESS)
{
CStr strPath = _T("mmcshext.dll");
// try to get absolute path value
CStr strAbsolute = CModulePath::MakeAbsoluteModulePath( strPath );
if ( strAbsolute.GetLength() > 0 )
strPath = strAbsolute;
// see what type of value we need to put
DWORD dwValueType = CModulePath::PlatformSupports_REG_EXPAND_SZ_Values() ?
REG_EXPAND_SZ : REG_SZ;
lRes = RegSetValueEx( regkey, NULL, 0, dwValueType,
(CONST BYTE *)((LPCTSTR)strPath),
(strPath.GetLength() + 1) * sizeof(TCHAR) );
ASSERT(lRes == ERROR_SUCCESS);
}
}
}