//==============================================================; // // This source code is only intended as a supplement to existing Microsoft documentation. // // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY // KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR // PURPOSE. // // Copyright (C) 1999 Microsoft Corporation. All Rights Reserved. //==============================================================; #include "stdafx.h" #include "ExtSnap.h" #include "ClassExtSnap.h" #include "Comp.h" #include "DataObj.h" #include "globals.h" #include "resource.h" #include "node1.h" ///////////////////////////////////////////////////////////////////////////// // CClassExtSnap //Here are the definitions for the clipboard formats that the //CClassExtSnap needs to be aware of for extending Computer Management #define _T_CCF_SNAPIN_CLASSID _T("CCF_SNAPIN_CLASSID") #define _T_MMC_SNAPIN_MACHINE_NAME _T("MMC_SNAPIN_MACHINE_NAME") #define _T_CCF_NODETYPE _T("CCF_NODETYPE") UINT CClassExtSnap::s_cfSnapInCLSID = RegisterClipboardFormat(_T_CCF_SNAPIN_CLASSID); UINT CClassExtSnap::s_cfMachineName = RegisterClipboardFormat (_T_MMC_SNAPIN_MACHINE_NAME); UINT CClassExtSnap::s_cfNodeType = RegisterClipboardFormat(_T_CCF_NODETYPE); const GUID CClassExtSnap::structuuidNodetypeServerApps = { 0x476e6449, 0xaaff, 0x11d0, { 0xb9, 0x44, 0x0, 0xc0, 0x4f, 0xd8, 0xd5, 0xb0 } }; HBITMAP CClassExtSnap::m_pBMapSm = NULL; HBITMAP CClassExtSnap::m_pBMapLg = NULL; CClassExtSnap::CClassExtSnap() : m_cref(0), bExpanded(FALSE), m_ipConsoleNameSpace2(NULL), m_ipConsole2(NULL) { if (NULL == m_pBMapSm || NULL == m_pBMapLg) LoadBitmaps(); } CClassExtSnap::~CClassExtSnap() { } /////////////////////////////// // Interface IComponentData /////////////////////////////// HRESULT CClassExtSnap::Initialize( /* [in] */ LPUNKNOWN pUnknown) { HRESULT hr; // // Get pointer to name space interface // hr = pUnknown->QueryInterface(IID_IConsoleNameSpace2, (void **)&m_ipConsoleNameSpace2); _ASSERT( S_OK == hr ); // // Get pointer to console interface // hr = pUnknown->QueryInterface(IID_IConsole2, (void **)&m_ipConsole2); _ASSERT( S_OK == hr ); IImageList *pImageList; m_ipConsole2->QueryScopeImageList(&pImageList); _ASSERT( S_OK == hr ); hr = pImageList->ImageListSetStrip( (long *)m_pBMapSm, // pointer to a handle (long *)m_pBMapLg, // pointer to a handle 0, // index of the first image in the strip RGB(0, 128, 128) // color of the icon mask ); _ASSERT( S_OK == hr ); pImageList->Release(); _ASSERT( S_OK == hr ); return hr; } HRESULT CClassExtSnap::CreateComponent( /* [out] */ LPCOMPONENT __RPC_FAR *ppComponent) { *ppComponent = NULL; CComponent *pComponent = new CComponent(this); if (NULL == pComponent) return E_OUTOFMEMORY; return pComponent->QueryInterface(IID_IComponent, (void **)ppComponent); } HRESULT CClassExtSnap::Notify( /* [in] */ LPDATAOBJECT lpDataObject, /* [in] */ MMC_NOTIFY_TYPE event, /* [in] */ LPARAM arg, /* [in] */ LPARAM param) { MMCN_Crack(TRUE, lpDataObject, this, NULL, event, arg, param); HRESULT hr = S_FALSE; if (NULL == lpDataObject) return hr; switch (event) { case MMCN_EXPAND: { _TCHAR szMachineName[MAX_PATH]; //Current machine name. //Your child scope items should cache this GUID myGuid; // extract GUID of the the currently selected node type from the data object hr = ExtractObjectTypeGUID(lpDataObject, &myGuid); _ASSERT( S_OK == hr ); // compare node type GUIDs of currently selected node and the node type // we want to extend. If they are are equal, currently selected node // is the type we want to extend, so we add our items underneath it if (IsEqualGUID(myGuid, getPrimaryNodeType())) { //Get the current targeted machine's name using the MMC_SNAPIN_MACHINE_NAME //clipboard format. //Note that each time the user retargets Computer Management, MMC will //send the MMCN_EXPAND notification to the SAME IComponentData instance. //Therefore, szMachineName always hold the current machine name. hr = ExtractString(lpDataObject, s_cfMachineName, szMachineName, (MAX_PATH+1)*sizeof(WCHAR) ); hr = CreateChildNode(m_ipConsoleNameSpace2, m_ipConsole2, (HSCOPEITEM)param, szMachineName); } else // currently selected node is one of ours instead { CDelegationBase *base = GetOurDataObject(lpDataObject)->GetBaseNodeObject(); hr = base->OnExpand(m_ipConsoleNameSpace2, m_ipConsole2, (HSCOPEITEM)param); } break; } case MMCN_REMOVE_CHILDREN: for (int n = 0; n < NUMBER_OF_CHILDREN; n++) if (children[n]) { delete children[n]; children[n] = NULL; } hr = S_OK; break; } return hr; } HRESULT CClassExtSnap::Destroy( void) { // Free interfaces if (m_ipConsoleNameSpace2) { m_ipConsoleNameSpace2->Release(); m_ipConsoleNameSpace2 = NULL; } if (m_ipConsole2) { m_ipConsole2->Release(); m_ipConsole2 = NULL; } return S_OK; } HRESULT CClassExtSnap::QueryDataObject( /* [in] */ MMC_COOKIE cookie, /* [in] */ DATA_OBJECT_TYPES type, /* [out] */ LPDATAOBJECT *ppDataObject) { CDataObject *pObj = NULL; //cookie always != 0 for namespace extensions) //if (cookie == 0) //static node // pObj = new CDataObject((MMC_COOKIE)this, type); //else pObj = new CDataObject(cookie, type); if (!pObj) return E_OUTOFMEMORY; pObj->QueryInterface(IID_IDataObject, (void **)ppDataObject); return S_OK; } HRESULT CClassExtSnap::GetDisplayInfo( /* [out][in] */ SCOPEDATAITEM *pScopeDataItem) { LPOLESTR pszW = NULL; HRESULT hr = S_FALSE; // if they are asking for the SDI_STR we have one of those to give if (pScopeDataItem->lParam) { CDelegationBase *base = (CDelegationBase *)pScopeDataItem->lParam; if (pScopeDataItem->mask & SDI_STR) { LPCTSTR pszT = base->GetDisplayName(); AllocOleStr(&pszW, (LPTSTR)pszT); pScopeDataItem->displayname = pszW; } if (pScopeDataItem->mask & SDI_IMAGE) { pScopeDataItem->nImage = base->GetBitmapIndex(); } hr = S_OK; } return hr; } HRESULT CClassExtSnap::CompareObjects( /* [in] */ LPDATAOBJECT lpDataObjectA, /* [in] */ LPDATAOBJECT lpDataObjectB) { return S_FALSE; } /////////////////////////////// // CClassExtSnap::CreateChildNode /////////////////////////////// HRESULT CClassExtSnap::CreateChildNode(IConsoleNameSpace *pConsoleNameSpace, IConsole *pConsole, HSCOPEITEM parent, _TCHAR *pszMachineName) { _ASSERT(NULL != pszMachineName); if (!bExpanded) { //first create the CNode1 objects, one for each inserted item for (int i = 0; i < NUMBER_OF_CHILDREN; i++) { children[i] = new CNode1(i + 1, pszMachineName); } //now fill an SCOPEDATAITEM for each item and then insert it SCOPEDATAITEM sdi; // create the child nodes, then expand them for (int n = 0; n < NUMBER_OF_CHILDREN; n++) { ZeroMemory(&sdi, sizeof(SCOPEDATAITEM) ); sdi.mask = SDI_STR | // Displayname is valid SDI_PARAM | // lParam is valid SDI_IMAGE | // nImage is valid SDI_OPENIMAGE | // nOpenImage is valid SDI_PARENT | // relativeID is valid SDI_CHILDREN; // cChildren is valid sdi.relativeID = (HSCOPEITEM)parent; sdi.nImage = children[n]->GetBitmapIndex(); sdi.nOpenImage = INDEX_OPENFOLDER; sdi.displayname = MMC_CALLBACK; sdi.lParam = (LPARAM)children[n]; // The cookie sdi.cChildren = 0; HRESULT hr = pConsoleNameSpace->InsertItem( &sdi ); _ASSERT( SUCCEEDED(hr) ); } } return S_OK; } HRESULT CClassExtSnap::ExtractData( IDataObject* piDataObject, CLIPFORMAT cfClipFormat, BYTE* pbData, DWORD cbData ) { HRESULT hr = S_OK; FORMATETC formatetc = {cfClipFormat, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL}; STGMEDIUM stgmedium = {TYMED_HGLOBAL, NULL}; stgmedium.hGlobal = ::GlobalAlloc(GPTR, cbData); do // false loop { if (NULL == stgmedium.hGlobal) { hr = E_OUTOFMEMORY; break; } hr = piDataObject->GetDataHere( &formatetc, &stgmedium ); if ( FAILED(hr) ) { break; } BYTE* pbNewData = reinterpret_cast(stgmedium.hGlobal); if (NULL == pbNewData) { hr = E_UNEXPECTED; break; } ::memcpy( pbData, pbNewData, cbData ); } while (FALSE); // false loop if (NULL != stgmedium.hGlobal) { ::GlobalFree(stgmedium.hGlobal); } return hr; } // ExtractData() HRESULT CClassExtSnap::ExtractString( IDataObject *piDataObject, CLIPFORMAT cfClipFormat, _TCHAR *pstr, DWORD cchMaxLength) { return ExtractData( piDataObject, cfClipFormat, (PBYTE)pstr, cchMaxLength ); } HRESULT CClassExtSnap::ExtractSnapInCLSID( IDataObject* piDataObject, CLSID* pclsidSnapin ) { return ExtractData( piDataObject, s_cfSnapInCLSID, (PBYTE)pclsidSnapin, sizeof(CLSID) ); } HRESULT CClassExtSnap::ExtractObjectTypeGUID( IDataObject* piDataObject, GUID* pguidObjectType ) { return ExtractData( piDataObject, s_cfNodeType, (PBYTE)pguidObjectType, sizeof(GUID) ); }