| 1 | /* $Id: tstVBoxAPIWin.cpp 33540 2010-10-28 09:27:05Z vboxsync $ */
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| 2 | /** @file
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| 3 | *
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| 4 | * tstVBoxAPIWin - sample program to illustrate the VirtualBox
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| 5 | * COM API for machine management on Windows.
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| 6 | It only uses standard C/C++ and COM semantics,
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| 7 | * no additional VBox classes/macros/helpers. To
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| 8 | * make things even easier to follow, only the
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| 9 | * standard Win32 API has been used. Typically,
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| 10 | * C++ developers would make use of Microsoft's
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| 11 | * ATL to ease development.
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| 12 | */
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| 13 |
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| 14 | /*
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| 15 | * Copyright (C) 2006-2007 Oracle Corporation
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| 16 | *
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| 17 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 18 | * available from http://www.virtualbox.org. This file is free software;
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| 19 | * you can redistribute it and/or modify it under the terms of the GNU
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| 20 | * General Public License (GPL) as published by the Free Software
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| 21 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 22 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 23 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 24 | */
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| 25 |
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| 26 | /*
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| 27 | * PURPOSE OF THIS SAMPLE PROGRAM
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| 28 | * ------------------------------
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| 29 | *
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| 30 | * This sample program is intended to demonstrate the minimal code necessary
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| 31 | * to use VirtualBox COM API for learning puroses only. The program uses pure
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| 32 | * Win32 API and doesn't have any extra dependencies to let you better
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| 33 | * understand what is going on when a client talks to the VirtualBox core
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| 34 | * using the COM framework.
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| 35 | *
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| 36 | * However, if you want to write a real application, it is highly recommended
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| 37 | * to use our MS COM XPCOM Glue library and helper C++ classes. This way, you
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| 38 | * will get at least the following benefits:
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| 39 | *
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| 40 | * a) better portability: both the MS COM (used on Windows) and XPCOM (used
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| 41 | * everywhere else) VirtualBox client application from the same source code
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| 42 | * (including common smart C++ templates for automatic interface pointer
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| 43 | * reference counter and string data management);
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| 44 | * b) simpler XPCOM initialization and shutdown (only a single method call
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| 45 | * that does everything right).
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| 46 | *
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| 47 | * Currently, there is no separate sample program that uses the VirtualBox MS
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| 48 | * COM XPCOM Glue library. Please refer to the sources of stock VirtualBox
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| 49 | * applications such as the VirtualBox GUI frontend or the VBoxManage command
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| 50 | * line frontend.
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| 51 | */
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| 52 |
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| 53 |
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| 54 | #include <stdio.h>
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| 55 | #include "VirtualBox.h"
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| 56 |
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| 57 | #define SAFE_RELEASE(x) \
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| 58 | if (x) { \
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| 59 | x->Release(); \
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| 60 | x = NULL; \
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| 61 | }
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| 62 |
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| 63 | int listVMs(IVirtualBox *virtualBox)
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| 64 | {
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| 65 | HRESULT rc;
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| 66 |
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| 67 | /*
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| 68 | * First we have to get a list of all registered VMs
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| 69 | */
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| 70 | SAFEARRAY *machinesArray = NULL;
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| 71 |
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| 72 | rc = virtualBox->get_Machines(&machinesArray);
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| 73 | if (SUCCEEDED(rc))
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| 74 | {
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| 75 | IMachine **machines;
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| 76 | rc = SafeArrayAccessData (machinesArray, (void **) &machines);
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| 77 | if (SUCCEEDED(rc))
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| 78 | {
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| 79 | for (ULONG i = 0; i < machinesArray->rgsabound[0].cElements; ++i)
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| 80 | {
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| 81 | BSTR str;
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| 82 |
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| 83 | rc = machines[i]->get_Name(&str);
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| 84 | if (SUCCEEDED(rc))
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| 85 | {
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| 86 | printf("Name: %S\n", str);
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| 87 | SysFreeString(str);
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| 88 | }
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| 89 | }
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| 90 |
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| 91 | SafeArrayUnaccessData (machinesArray);
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| 92 | }
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| 93 |
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| 94 | SafeArrayDestroy (machinesArray);
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| 95 | }
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| 96 |
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| 97 | return 0;
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| 98 | }
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| 99 |
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| 100 |
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| 101 | int testErrorInfo(IVirtualBox *virtualBox)
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| 102 | {
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| 103 | HRESULT rc;
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| 104 |
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| 105 | /* Try to find a machine that doesn't exist */
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| 106 | IMachine *machine = NULL;
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| 107 | BSTR machineName = SysAllocString(L"Foobar");
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| 108 |
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| 109 | rc = virtualBox->FindMachine(machineName, &machine);
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| 110 |
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| 111 | if (FAILED(rc))
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| 112 | {
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| 113 | IErrorInfo *errorInfo;
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| 114 |
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| 115 | rc = GetErrorInfo(0, &errorInfo);
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| 116 |
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| 117 | if (FAILED(rc))
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| 118 | printf("Error getting error info! rc = 0x%x\n", rc);
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| 119 | else
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| 120 | {
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| 121 | BSTR errorDescription = NULL;
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| 122 |
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| 123 | rc = errorInfo->GetDescription(&errorDescription);
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| 124 |
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| 125 | if (FAILED(rc) || !errorDescription)
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| 126 | printf("Error getting error description! rc = 0x%x\n", rc);
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| 127 | else
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| 128 | {
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| 129 | printf("Successfully retrieved error description: %S\n", errorDescription);
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| 130 |
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| 131 | SysFreeString(errorDescription);
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| 132 | }
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| 133 |
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| 134 | errorInfo->Release();
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| 135 | }
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| 136 | }
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| 137 |
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| 138 | SAFE_RELEASE(machine);
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| 139 | SysFreeString(machineName);
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| 140 |
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| 141 | return 0;
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| 142 | }
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| 143 |
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| 144 |
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| 145 | int testStartVM(IVirtualBox *virtualBox)
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| 146 | {
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| 147 | HRESULT rc;
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| 148 |
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| 149 | /* Try to start a VM called "WinXP SP2". */
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| 150 | IMachine *machine = NULL;
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| 151 | BSTR machineName = SysAllocString(L"WinXP SP2");
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| 152 |
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| 153 | rc = virtualBox->FindMachine(machineName, &machine);
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| 154 |
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| 155 | if (FAILED(rc))
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| 156 | {
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| 157 | IErrorInfo *errorInfo;
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| 158 |
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| 159 | rc = GetErrorInfo(0, &errorInfo);
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| 160 |
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| 161 | if (FAILED(rc))
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| 162 | printf("Error getting error info! rc = 0x%x\n", rc);
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| 163 | else
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| 164 | {
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| 165 | BSTR errorDescription = NULL;
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| 166 |
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| 167 | rc = errorInfo->GetDescription(&errorDescription);
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| 168 |
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| 169 | if (FAILED(rc) || !errorDescription)
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| 170 | printf("Error getting error description! rc = 0x%x\n", rc);
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| 171 | else
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| 172 | {
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| 173 | printf("Successfully retrieved error description: %S\n", errorDescription);
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| 174 |
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| 175 | SysFreeString(errorDescription);
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| 176 | }
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| 177 |
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| 178 | SAFE_RELEASE(errorInfo);
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| 179 | }
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| 180 | }
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| 181 | else
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| 182 | {
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| 183 | ISession *session = NULL;
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| 184 | IConsole *console = NULL;
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| 185 | IProgress *progress = NULL;
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| 186 | BSTR sessiontype = SysAllocString(L"gui");
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| 187 | BSTR guid;
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| 188 |
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| 189 | do
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| 190 | {
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| 191 | rc = machine->get_Id(&guid); /* Get the GUID of the machine. */
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| 192 | if (!SUCCEEDED(rc))
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| 193 | {
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| 194 | printf("Error retrieving machine ID! rc = 0x%x\n", rc);
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| 195 | break;
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| 196 | }
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| 197 |
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| 198 | /* Create the session object. */
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| 199 | rc = CoCreateInstance(CLSID_Session, /* the VirtualBox base object */
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| 200 | NULL, /* no aggregation */
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| 201 | CLSCTX_INPROC_SERVER, /* the object lives in a server process on this machine */
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| 202 | IID_ISession, /* IID of the interface */
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| 203 | (void**)&session);
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| 204 | if (!SUCCEEDED(rc))
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| 205 | {
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| 206 | printf("Error creating Session instance! rc = 0x%x\n", rc);
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| 207 | break;
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| 208 | }
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| 209 |
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| 210 | /* Start a VM session using the delivered VBox GUI. */
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| 211 | rc = machine->LaunchVMProcess(session, sessiontype,
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| 212 | NULL, &progress);
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| 213 | if (!SUCCEEDED(rc))
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| 214 | {
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| 215 | printf("Could not open remote session! rc = 0x%x\n", rc);
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| 216 | break;
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| 217 | }
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| 218 |
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| 219 | /* Wait until VM is running. */
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| 220 | printf ("Starting VM, please wait ...\n");
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| 221 | rc = progress->WaitForCompletion (-1);
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| 222 |
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| 223 | /* Get console object. */
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| 224 | session->get_Console(&console);
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| 225 |
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| 226 | /* Bring console window to front. */
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| 227 | machine->ShowConsoleWindow(0);
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| 228 |
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| 229 | printf ("Press enter to power off VM and close the session...\n");
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| 230 | getchar();
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| 231 |
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| 232 | /* Power down the machine. */
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| 233 | rc = console->PowerDown(&progress);
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| 234 |
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| 235 | /* Wait until VM is powered down. */
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| 236 | printf ("Powering off VM, please wait ...\n");
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| 237 | rc = progress->WaitForCompletion (-1);
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| 238 |
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| 239 | /* Close the session. */
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| 240 | rc = session->UnlockMachine();
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| 241 |
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| 242 | } while (0);
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| 243 |
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| 244 | SAFE_RELEASE(console);
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| 245 | SAFE_RELEASE(progress);
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| 246 | SAFE_RELEASE(session);
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| 247 | SysFreeString(guid);
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| 248 | SysFreeString(sessiontype);
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| 249 | SAFE_RELEASE(machine);
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| 250 | }
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| 251 |
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| 252 | SysFreeString(machineName);
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| 253 |
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| 254 | return 0;
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| 255 | }
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| 256 |
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| 257 |
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| 258 | int main(int argc, char *argv[])
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| 259 | {
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| 260 | HRESULT rc;
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| 261 | IVirtualBox *virtualBox;
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| 262 |
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| 263 | do
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| 264 | {
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| 265 | /* Initialize the COM subsystem. */
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| 266 | CoInitialize(NULL);
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| 267 |
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| 268 | /* Instantiate the VirtualBox root object. */
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| 269 | rc = CoCreateInstance(CLSID_VirtualBox, /* the VirtualBox base object */
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| 270 | NULL, /* no aggregation */
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| 271 | CLSCTX_LOCAL_SERVER, /* the object lives in a server process on this machine */
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| 272 | IID_IVirtualBox, /* IID of the interface */
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| 273 | (void**)&virtualBox);
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| 274 |
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| 275 | if (!SUCCEEDED(rc))
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| 276 | {
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| 277 | printf("Error creating VirtualBox instance! rc = 0x%x\n", rc);
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| 278 | break;
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| 279 | }
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| 280 |
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| 281 | listVMs(virtualBox);
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| 282 |
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| 283 | testErrorInfo(virtualBox);
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| 284 |
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| 285 | /* Enable the following line to get a VM started. */
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| 286 | //testStartVM(virtualBox);
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| 287 |
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| 288 | /* Release the VirtualBox object. */
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| 289 | virtualBox->Release();
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| 290 |
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| 291 | } while (0);
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| 292 |
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| 293 | CoUninitialize();
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| 294 | return 0;
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| 295 | }
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| 296 |
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