DISK.CPP
/////////////////////////////////////////////////////////////////////////////
// disk.cpp : Implementation of DLL Exports.
//
// This is a part of the MMC SDK.
// Copyright (C) 1997 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// MMC SDK Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// MMC Library product.
//
// Note: Proxy/Stub Information
//To build a separate proxy/stub DLL,
//run nmake -f diskps.mk in the project directory.
#include "stdafx.h"
#include "resource.h"
#include "initguid.h"
#include "disk.h"
#include "disk_i.c"
#include "globals.h"
#include "compdata.h"
CComModule _Module;
BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_ComponentData, CComponentData)
END_OBJECT_MAP()
/////////////////////////////////////////////////////////////////////////////
// DLL Entry Point
extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
{
if ( DLL_PROCESS_ATTACH == dwReason )
{
g_hinst = hInstance; // Store global instance handle
_Module.Init(ObjectMap, hInstance);
DisableThreadLibraryCalls(hInstance);
}
else if ( DLL_PROCESS_DETACH == dwReason )
_Module.Term();
return TRUE; // OK
} // end DllMain()
/////////////////////////////////////////////////////////////////////////////
// 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
// If we don't get these things into the registry, then MMC will not see us
// and we will not appear in the "Add Snapin" dialog.
// We error check every return value in both DllRegisterServer() and
// DllUnRegisterServer(). You may want to do this only in your debug
// version to reduce code size, at the expense of making troubleshooting
// more difficult
//
STDAPI DllRegisterServer(void)
{
HKEY hMmcParentKey = NULL;
HKEY hDiskParentKey = NULL;
HKEY hStandAloneKey = NULL;
HKEY hNodeTypesKey = NULL;
HKEY hTempNodeKey = NULL;
LONG nErr = 0;
//DebugBreak(); // Uncomment this to step through registration
// Open the MMC Parent key
nErr = RegOpenKey( HKEY_LOCAL_MACHINE,
L"Software\\Microsoft\\MMC\\SnapIns",
&hMmcParentKey
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Open MMC Parent Key Failed" );
// Create the ID for our ICompnentData Interface
// The ID was generated for us, because we used a Wizard to create the app.
// Take the ID for IComponentData in the IDL file.
//
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// Make sure you change this if you use this code as a starting point!
// Change other IDs as well below!
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
nErr = RegCreateKey( hMmcParentKey,
L"{CF8CC7EF-0CFE-11D1-8F07-000000000000}",
&hDiskParentKey
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Open Disk Parent Key Failed" );
nErr = RegSetValueEx( hDiskParentKey,
L"NameString",
0,
REG_SZ,
(LPBYTE)L"Disk Sample",
sizeof(L"Disk Sample")
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Set NameString Failed" );
nErr = RegSetValueEx( hDiskParentKey,
L"NodeType",
0,
REG_SZ,
(LPBYTE)L"{570F713A-0F57-11D1-A194-00C04FC3092F}",
sizeof(L"{570F713A-0F57-11D1-A194-00C04FC3092F}")
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Set NodeType Failed" );
// We are a stand alone snapin, so set the key for this
nErr = RegCreateKey( hDiskParentKey, L"StandAlone", &hStandAloneKey);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Create StandAlone Key Failed" );
// StandAlone has no children, so close it
nErr = RegCloseKey( hStandAloneKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close StandAlone Failed" );
// Set the node types that appear in our snapin
nErr = RegCreateKey( hDiskParentKey, L"NodeTypes", &hNodeTypesKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Create NodeTypes Key Failed" );
// Here is our root node. Used uuidgen to get it
nErr = RegCreateKey( hNodeTypesKey,
L"{570F713A-0F57-11D1-A194-00C04FC3092F}",
&hTempNodeKey
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Create RootNode Key Failed" );
nErr = RegSetValueEx( hTempNodeKey,
NULL,
0,
REG_SZ,
(LPBYTE)L"Root Node",
sizeof(L"Root Node")
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Set Root Node String Failed" );
nErr = RegCloseKey( hTempNodeKey ); // Close it so we can reuse handle
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close RootNode Failed" );
// Here is our child node under the root node. Used uuidgen to get it
nErr = RegCreateKey( hNodeTypesKey,
L"{50C4FBDC-1F02-11D1-A1AE-00C04FC3092F}",
&hTempNodeKey
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Create Child Node Key Failed" );
nErr = RegSetValueEx( hTempNodeKey,
NULL,
0,
REG_SZ,
(LPBYTE)L"Child Under Root Node",
sizeof(L"Child Under Root Node")
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Set Child Node String Failed" );
nErr = RegCloseKey( hTempNodeKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close Child Node Key Failed" );
nErr = RegCloseKey( hNodeTypesKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close Node Types Key Failed" );
nErr = RegCloseKey( hDiskParentKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close Disk Parent Key Failed" );
nErr = RegCloseKey( hMmcParentKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close MMC Parent Key Failed" );
// Registers object, typelib and all interfaces in typelib
return _Module.RegisterServer(TRUE);
} // end DllRegisterServer()
//---------------------------------------------------------------------------
// DllUnregisterServer: Since we are a good citizen, delete all the keys
// we added to the MMC keys in the registry as well as
// the normal unregistering of our com objects.
//
STDAPI DllUnregisterServer(void)
{
HKEY hMmcParentKey = NULL; // MMC parent key
HKEY hDiskParentKey = NULL; // Our Snap-In key - has children
HKEY hNodeTypesKey = NULL; // Our NodeType key - has children
LONG nErr = 0;
// DebugBreak(); // Uncomment this to step through UnRegister
// Open the MMC parent key
nErr = RegOpenKey( HKEY_LOCAL_MACHINE,
L"Software\\Microsoft\\MMC\\SnapIns",
&hMmcParentKey
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Open MMC Parent Key Failed" );
// Open our Parent key
nErr = RegOpenKey( hMmcParentKey,
L"{CF8CC7EF-0CFE-11D1-8F07-000000000000}",
&hDiskParentKey
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Open Disk Parent Key Failed" );
// Now open the NodeTypes key
nErr = RegOpenKey( hDiskParentKey, // Handle of parent key
L"NodeTypes", // Name of key to open
&hNodeTypesKey // Handle to newly opened key
);
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Open NodeTypes Key Failed" );
// Delete the root node key
nErr = RegDeleteKey( hNodeTypesKey, L"{570F713A-0F57-11D1-A194-00C04FC3092F}" );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Delete Root Node Key Failed" );
// Delete the child node key
nErr = RegDeleteKey( hNodeTypesKey, L"{50C4FBDC-1F02-11D1-A1AE-00C04FC3092F}" );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Delete Child Node Key Failed" );
// Close the node type key so we can delete it
nErr = RegCloseKey( hNodeTypesKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close NodeTypes Key failed" );
// Delete the NodeTypes key
nErr = RegDeleteKey( hDiskParentKey, L"NodeTypes" );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Delete NodeTypes Key failed" );
// StandAlone key has no children so we can delete it now
nErr = RegDeleteKey( hDiskParentKey, L"StandAlone" );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Delete StandAlone Key Failed" );
// Close our Parent Key
nErr = RegCloseKey( hDiskParentKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close Disk Parent Key Failed" );
// Now we can delete our Snap-In key since the children are gone
nErr = RegDeleteKey( hMmcParentKey, L"{CF8CC7EF-0CFE-11D1-8F07-000000000000}" );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Delete Disk Parent Key Failed" );
nErr = RegCloseKey( hMmcParentKey );
if( ERROR_SUCCESS != nErr )
DisplayError( GetLastError(), L"Close MMC Parent Key Failed" );
// UnRegisters object, typelib and all interfaces in typelib
return _Module.UnregisterServer();
} // end DllUnregisterServer()