由于我无法在官方的 VirtualBox 板上获得帮助，所以我想问一下你们中是否有人知道如何处理 VirtualBox API。 以下问题仅出现在我的 2 台 Win 8 x64 计算机上，但不在我的 Win 7 x86 笔记本电脑上！我不知道为什么，但正如维基百科所说，微软在 Win 8 中的 COM 发生了很大变化。在 Win 7 上启动可执行文件一切正常！
基本通信工作正常，我可以检索所有可用的虚拟机，因此 Com 连接至少部分工作。然而，一旦我想启动一个虚拟机，我就会得到我不明白的奇怪错误。这是输出：
我正在使用带有 sdk 的 VirtualBox 4.2，这是源代码（主要改编自示例）：
#include <stdio.h>
#include <tchar.h>
#include "VirtualBox.h"
#define SAFE_RELEASE(x) \
if (x) { \
x->Release(); \
x = NULL; \
}
int listVMs(IVirtualBox *virtualBox)
{
HRESULT rc;
/*
* First we have to get a list of all registered VMs
*/
SAFEARRAY *machinesArray = NULL;
rc = virtualBox->get_Machines(&machinesArray);
if (SUCCEEDED(rc))
{
IMachine **machines;
rc = SafeArrayAccessData (machinesArray, (void **) &machines);
if (SUCCEEDED(rc))
{
for (ULONG i = 0; i < machinesArray->rgsabound[0].cElements; ++i)
{
BSTR str;
rc = machines[i]->get_Name(&str);
if (SUCCEEDED(rc))
{
printf("Available Machine: %S\n", str);
SysFreeString(str);
}
}
SafeArrayUnaccessData (machinesArray);
}
SafeArrayDestroy (machinesArray);
}
return 0;
}
int testErrorInfo(IVirtualBox *virtualBox)
{
HRESULT rc;
/* Try to find a machine that doesn't exist */
IMachine *machine = NULL;
BSTR machineName = SysAllocString(L"Test Machine");
rc = virtualBox->FindMachine(machineName, &machine);
if (FAILED(rc))
{
IErrorInfo *errorInfo;
rc = GetErrorInfo(0, &errorInfo);
if (FAILED(rc))
printf("Error getting error info! rc = 0x%x\n", rc);
else
{
BSTR errorDescription = NULL;
rc = errorInfo->GetDescription(&errorDescription);
if (FAILED(rc) || !errorDescription)
printf("Error getting error description! rc = 0x%x\n", rc);
else
{
printf("Successfully retrieved error description: %S\n", errorDescription);
SysFreeString(errorDescription);
}
errorInfo->Release();
}
}
else
printf("No Errors \n");
SAFE_RELEASE(machine);
SysFreeString(machineName);
return 0;
}
int testStartVM(IVirtualBox *virtualBox, OLECHAR *MachineName)
{
HRESULT rc;
/* Try to start a VM*/
IMachine *machine = NULL;
BSTR machineName = SysAllocString(MachineName);
rc = virtualBox->FindMachine(machineName, &machine);
if (FAILED(rc))
{
IErrorInfo *errorInfo;
rc = GetErrorInfo(0, &errorInfo);
if (FAILED(rc))
printf("Error getting error info! rc = 0x%x\n", rc);
else
{
BSTR errorDescription = NULL;
rc = errorInfo->GetDescription(&errorDescription);
if (FAILED(rc) || !errorDescription)
printf("Error getting error description! rc = 0x%x\n", rc);
else
{
printf("Successfully retrieved error description: %S\n", errorDescription);
SysFreeString(errorDescription);
}
SAFE_RELEASE(errorInfo);
}
}
else
{
ISession *session = NULL;
IConsole *console = NULL;
IProgress *progress = NULL;
BSTR sessiontype = SysAllocString(L"gui");
BSTR guid;
do
{
rc = machine->get_Id(&guid); /* Get the GUID of the machine. */
if (!SUCCEEDED(rc))
{
printf("Error retrieving machine ID! rc = 0x%x\n", rc);
break;
}
/* Create the session object. */
testErrorInfo(virtualBox);
printf("GetLastError : %d\n", GetLastError());
rc = CoCreateInstance(CLSID_Session, //the VirtualBox base object
NULL, //no aggregation
CLSCTX_INPROC_SERVER, //the object lives in a server process on this machine
IID_ISession, //IID of the interface
(void**)&session);
/*
//
//
//Error in CoCreateInstance
//
//
*/
if (!SUCCEEDED(rc))
{
printf("Error creating Session instance! rc = 0x%x\n", rc);
printf("GetLastError : %d\n", GetLastError());
break;
}
/* Start a VM session using the delivered VBox GUI. */
rc = machine->LaunchVMProcess(session, sessiontype,
NULL, &progress);
if (!SUCCEEDED(rc))
{
printf("Could not open remote session! rc = 0x%x\n", rc);
break;
}
/* Wait until VM is running. */
printf ("Starting VM, please wait ...\n");
rc = progress->WaitForCompletion (-1);
/* Get console object. */
session->get_Console(&console);
/* Bring console window to front. */
machine->ShowConsoleWindow(0);
printf ("Press enter to power off VM and close the session...\n");
getchar();
/* Power down the machine. */
rc = console->PowerDown(&progress);
/* Wait until VM is powered down. */
printf ("Powering off VM, please wait ...\n");
rc = progress->WaitForCompletion (-1);
/* Close the session. */
rc = session->UnlockMachine();
} while (0);
SAFE_RELEASE(console);
SAFE_RELEASE(progress);
SAFE_RELEASE(session);
SysFreeString(guid);
SysFreeString(sessiontype);
SAFE_RELEASE(machine);
}
SysFreeString(machineName);
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
CoInitialize(NULL);
IVirtualBox *virtualBox;
HRESULT rc = CoCreateInstance(CLSID_VirtualBox,
NULL,
CLSCTX_LOCAL_SERVER,
IID_IVirtualBox,
(void**)&virtualBox);
if (!SUCCEEDED(rc))
{
printf("Error creating VirtualBox instance! rc = 0x%x\n", rc);
getchar();
return 0;
}
else
{
printf("Successfully created VirtualBox instance \n");
testErrorInfo(virtualBox);
listVMs(virtualBox);
}
testStartVM(virtualBox, L"Full Tilt");
virtualBox->Release();
CoUninitialize();
getchar();
return 0;
}
这意味着它在调用时崩溃
rc = CoCreateInstance(CLSID_Session, //the VirtualBox base object
NULL, //no aggregation
CLSCTX_INPROC_SERVER, //the object lives in a server process on this machine
IID_ISession, //IID of the interface
(void**)&session);
它抛出；
0x80040154 aka REGDB_E_CLASSNOTREG
GetLastError 返回：
ERROR_SXS_KEY_NOT_FOUND
14007 (0x36B7)
The requested lookup key was not found in any active activation context.
我尝试了很多东西，但无法解决问题。任何形式的帮助都非常感谢:)
谢谢！