帮助：MS虚拟磁盘服务访问本地计算机上的卷和光盘【JAVA教程】

概述帮助：MS虚拟磁盘服务访问本地计算机上的卷和光盘

这里是我的代码，我成功地初始化VDS服务，并获得包，但当我调用IVdsPack对象上的queryVolumes，我能够获得IEnumVdsObjects但无法通过IEnumVdsObject :: Next方法获得IUnkNown *数组，它会重新S_FALSE与IUnkown * = NulL。 所以这个IUnkNown *不能被用于IVdsVolume的queryInterface

以下是我的代码

HRESulT hResult; IVdsService* pService = NulL; IVdsServiceLoader *pLoader = NulL; //Launch the VDS Service hResult = CoInitialize(NulL); if( SUCCEEDED(hResult) ) { hResult = CoCreateInstance( CLSID_VdsLoader,NulL,CLSCTX_LOCAL_SERVER,IID_IVdsServiceLoader,(voID**) &pLoader ); //if succeeded load VDS on local machine if( SUCCEEDED(hResult) ) pLoader->LoadService(NulL,&pService); //Done with Loader Now release VDS Loader interface _SafeRelease(pLoader); if( SUCCEEDED(hResult) ) { hResult = pService->WaitForServiceReady(); if ( SUCCEEDED(hResult) ) { AfxMessageBox(L\”VDS Service Loaded\”); IEnumVdsObject* pEnumVdsObject = NulL; hResult = pService->queryProvIDers(VDS_query_SOFTWARE_PROVIDERS,&pEnumVdsObject); IUnkNown* ppObjUnk ; IVdsSwProvIDer* pVdsSwProvIDer = NulL; IVdsPack* pVdsPack = NulL; IVdsVolume* pVdsVolume = NulL; ulONG ulFetched = 0; hResult = E_INVALIDARG; while(!SUCCEEDED(hResult)) { hResult = pEnumVdsObject->Next(1,&ppObjUnk,&ulFetched); hResult = ppObjUnk->queryInterface(IID_IVdsSwProvIDer,(voID**)&pVdsSwProvIDer); if(!SUCCEEDED(hResult)) _SafeRelease(ppObjUnk); } _SafeRelease(pEnumVdsObject); _SafeRelease(ppObjUnk); hResult = pVdsSwProvIDer->queryPacks(&pEnumVdsObject); hResult = E_INVALIDARG; while(!SUCCEEDED(hResult)) { hResult = pEnumVdsObject->Next(1,&ulFetched); hResult = ppObjUnk->queryInterface(IID_IVdsPack,(voID**)&pVdsPack); if(!SUCCEEDED(hResult)) _SafeRelease(ppObjUnk); } _SafeRelease(pEnumVdsObject); _SafeRelease(ppObjUnk); hResult = pVdsPack->queryVolumes(&pEnumVdsObject); pEnumVdsObject->reset(); hResult = E_INVALIDARG; ulFetched = 0; BOol bDone = FALSE; while(!SUCCEEDED(hResult)) { hResult = pEnumVdsObject->Next(1,&ulFetched); //hResult = ppObjUnk->queryInterface(IID_IVdsVolume,(voID**)&pVdsVolume); if(!SUCCEEDED(hResult)) _SafeRelease(ppObjUnk); } _SafeRelease(pEnumVdsObject); _SafeRelease(ppObjUnk); _SafeRelease(pVdsPack); _SafeRelease(pVdsSwProvIDer); // hResult = pVdsVolume->AddAccesspath(TEXT(\”G:\\\”)); if(SUCCEEDED(hResult)) AfxMessageBox(L\”Add Access Path Successfully\”); else AfxMessageBox(L\”Unable to Add access path\”); //UUID of IVdsVolumeMF {EE2D5DED-6236-4169-931D-B9778CE03DC6} static const GUID GUID_IVdsVolumeMF = {0xEE2D5DED,0x6236,4169,{0x93,0x1D,0xB9,0x77,0x8C,0xE0,0x3D,0XC6} }; hResult = pService->Getobject(GUID_IVdsVolumeMF,VDS_OT_VolUME,&ppObjUnk); if(hResult == VDS_E_OBJECT_NOT_FOUND) AfxMessageBox(L\”Object Not found\”); if(hResult == VDS_E_INITIAliZED_Failed) AfxMessageBox(L\”Initialization Failed\”); // pVdsVolume = reinterpret_cast<IVdsVolumeMF*>(ppObjUnk); if(SUCCEEDED(hResult)) { // hResult = pVdsVolume->AddAccesspath(TEXT(\”G:\\\”)); if(SUCCEEDED(hResult)) { IVdsAsync* ppVdsSync; AfxMessageBox(L\”Formatting is about to Start……\”); // hResult = pVdsVolume->Format(VDS_FST_UDF,TEXT(\”UDF_FORMAT_TEST\”),2048,TRUE,FALSE,&ppVdsSync); if(SUCCEEDED(hResult)) AfxMessageBox(L\”Formatting Started…….\”); else AfxMessageBox(L\”Formatting Failed\”); } else AfxMessageBox(L\”Unable to Add Access Path\”); } _SafeRelease(pVdsVolume); } else { AfxMessageBox(L\”VDS Service Cannot be Loaded\”); } } } _SafeRelease(pService);

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你需要在你的while循环里面枚举你的IVdsSwProvIDers。

我修改你的代码是为了我自己的目的。 你必须小心，因为我把它扔在一起进行测试，因此不关心内存泄漏和释放COM对象。 我也有很多调试打印：

#include \”stdafx.h\” #include \”initguID.h\” #include <vds.h> #include <stdio.h> #pragma comment( lib,\”ole32.lib\” ) #pragma comment( lib,\”rpcrt4.lib\” ) #define _SafeRelease(x) {if (NulL != x) { x->Release(); x = NulL; } } voID Enumeratedisks(IVdsPack* pPack) { HRESulT hResult; ulONG ulFetched = 0; IUnkNown* ppObjUnk ; IEnumVdsObject* pEnumVdsObject = NulL; IVdsdisk* pVdsdisk = NulL; IVdsdisk2* pVdsdisk2 = NulL; IVdsAdvanceddisk* pVdsAdvanceddisk = NulL; if (pPack == 0) return; hResult = pPack->querydisks(&pEnumVdsObject); if (pEnumVdsObject == 0) return; while( true) { if (!pEnumVdsObject) break; hResult = pEnumVdsObject->Next(1,&ulFetched); if (ulFetched == 0) break; hResult = ppObjUnk->queryInterface(IID_IVdsdisk,(voID**)&pVdsdisk); VDS_disK_PROP diskProp; pVdsdisk->GetPropertIEs(&diskProp); printf(\”—————————————-n\”); wprintf(L\”disk: %dn\”,diskProp.status); wprintf(L\”disk: %sn\”,diskProp.pwszAdaptorname); wprintf(L\”disk: %sn\”,diskProp.pwszDevicePath); wprintf(L\”disk: %sn\”,diskProp.pwszFrIEndlyname); wprintf(L\”disk: %sn\”,diskProp.pwszname); wprintf(L\”disk: %dn\”,diskProp.DWDeviceType); wprintf(L\”disk: %dn\”,diskProp.DWMediaType); wprintf(L\”disk: %dn\”,diskProp.DWSignature); wprintf(L\”disk: %dn\”,diskProp.PartitionStyle); wprintf(L\”disk: %dn\”,diskProp.ReserveMode); wprintf(L\”disk: %dn\”,diskProp.ulFlags); VDS_PARTITION_PROP * pPropArray = NulL; LONG pNumberOfPartitions = 0; hResult = ppObjUnk->queryInterface(IID_IVdsAdvanceddisk,(voID**)&pVdsAdvanceddisk); pVdsAdvanceddisk->queryPartitions(&pPropArray,&pNumberOfPartitions); VDS_PARTITION_PROP * tmp = pPropArray; for (int i = 0; i < pNumberOfPartitions; ++i) { printf(\”Number: %dn\”,tmp->ulPartitionNumber); printf(\”Style : %dn\”,tmp->PartitionStyle); printf(\”Flags : %dn\”,tmp->ulFlags); printf(\”Offset: %ulln\”,tmp->ullOffset); printf(\”Size: %ulln\”,tmp->ullSize); printf(\”MBR type: %dn\”,tmp->Mbr.partitionType); printf(\”MBR type: %dn\”,tmp->Mbr.bootIndicator); printf(\”MBR type: %dn\”,tmp->Mbr.recognizedPartition); printf(\”MBR type: %dn\”,tmp->Mbr.hIDdenSectors); ++tmp; } CoTaskMemFree(pPropArray); } } voID EnumerateVolumes(IVdsPack* pPack) { HRESulT hResult; ulONG ulFetched = 0; IUnkNown* ppObjUnk ; IEnumVdsObject* pEnumVdsObject = NulL; IVdsVolume* pVdsVolume = NulL; if (pPack == 0) return; hResult = pPack->queryVolumes(&pEnumVdsObject); if (pEnumVdsObject == 0) return; while( true) { hResult = pEnumVdsObject->Next(1,&ulFetched); if (ulFetched == 0) break; hResult = ppObjUnk->queryInterface(IID_IVdsVolume,(voID**)&pVdsVolume); VDS_VolUME_PROP volProp; pVdsVolume->GetPropertIEs(&volProp); printf(\”Vol name : %sn\”,volProp.pwszname); printf(\”Vol health: %dn\”,volProp.health); } } voID EnumeratePacks(IVdsSwProvIDer* pProvIDer) { HRESulT hResult; ulONG ulFetched = 0; IUnkNown* ppObjUnk ; IEnumVdsObject* pEnumVdsObject = NulL; IVdsPack* pVdsPack = NulL; if (pProvIDer == 0) return; hResult = pProvIDer->queryPacks(&pEnumVdsObject); if (pEnumVdsObject == 0) return; while( true) { hResult = pEnumVdsObject->Next(1,&ulFetched); if (ulFetched == 0) break; hResult = ppObjUnk->queryInterface(IID_IVdsPack,(voID**)&pVdsPack); VDS_PACK_PROP packProp; pVdsPack->GetPropertIEs(&packProp); if (packProp.status == VDS_PS_ONliNE) { printf(\”Pack name : %sn\”,packProp.pwszname); printf(\”Pack status: %dn\”,packProp.status); printf(\”Pack flags : %dn\”,packProp.ulFlags); Enumeratedisks(pVdsPack); EnumerateVolumes(pVdsPack); } } } voID EnumerateSoftwareProvIDers(IVdsService* pService) { HRESulT hResult; ulONG ulFetched = 0; IUnkNown* ppObjUnk ; IEnumVdsObject* pEnumVdsObject = NulL; IVdsSwProvIDer* pVdsSwProvIDer = NulL; hResult = pService->queryProvIDers(VDS_query_SOFTWARE_PROVIDERS,&pEnumVdsObject); while( true) { hResult = pEnumVdsObject->Next(1,&ulFetched); if (ulFetched == 0) break; hResult = ppObjUnk->queryInterface(IID_IVdsSwProvIDer,(voID**)&pVdsSwProvIDer); EnumeratePacks(pVdsSwProvIDer); } } int __cdecl main(voID) { ////////////////////////////////////////////////////////////////// HRESulT hResult; IVdsService* pService = NulL; IVdsServiceLoader *pLoader = NulL; //Launch the VDS Service hResult = CoInitializeEx(NulL,COINIT_MulTITHREADED); // Initialize COM security CoInitializeSecurity( NulL,// Allow *all* VSS writers to communicate back! -1,// Default COM authentication service NulL,// Default COM authorization service NulL,// reserved parameter RPC_C_AUTHN_LEVEL_PKT_PRIVACY,// Strongest COM authentication level RPC_C_IMP_LEVEL_IMPERSONATE,// Minimal impersonation abilitIEs NulL,// Default COM authentication settings EOAC_NONE,// No special options NulL // Reserved parameter ); if( SUCCEEDED(hResult) ) { hResult = CoCreateInstance( CLSID_VdsLoader,&pService); //Done with Loader Now release VDS Loader interface _SafeRelease(pLoader); if( SUCCEEDED(hResult) ) { hResult = pService->WaitForServiceReady(); if ( SUCCEEDED(hResult) ) { EnumerateSoftwareProvIDers(pService); return 0; } } } return -1; }

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