<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=unicode" /> <meta http-equiv="Content-Language" content="en-us" /> <style> <!-- p.MsoNormal {margin-top:0mm; margin-right:0mm; margin-bottom:10.0pt; margin-left:0mm; line-height:115%; font-size:11.0pt; font-family:"Calibri","sans-serif";} a:link {color:blue; text-decoration:underline;} a:visited {color:purple; text-decoration:underline;} p {margin-right:0mm; margin-left:0mm; font-size:12.0pt; font-family:"Times New Roman","serif";} --> </style> <title>How to obtain the Windows File System Recognition Information C code example</title> <meta name="keywords" content="program, examples, programming, C, file system, computer, project, Visual Studio, samples, code" /> <meta name="description" content="C program example on how to obtain file system recognition information" /> </head> <body lang="EN-US" link="#0000FF" vlink="#800080" topmargin="20" leftmargin="20" rightmargin="20" bottommargin="20"> <div class="Section1"> <h1 align="center" style="margin-bottom:0mm;margin-bottom:.0001pt; text-align:center"><font size="5" face="Times New Roman"> <span style="line-height:115%;font-family:&quot;Arial&quot;; font-weight:400"> Win32 Windows Volume Program and Code Example 3</span></font></h1> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt">&nbsp;</p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt">&nbsp;</p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt" align="center"> <script type="text/javascript"><!-- google_ad_client = "pub-8089415323104206"; google_ad_slot = "0761177910"; google_ad_width = 728; google_ad_height = 90; //--> </script> &nbsp;<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt">&nbsp;</p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt">&nbsp;</p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><b><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;;font-weight:bold">Obtaining File System Recognition Information Example</span></font></b></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">File system recognition is the ability to recognize storage media that contain a valid file system/volume layout that hasn t been defined yet, but the media is able to identify itself through the presence of the recognition structure defined internally by Windows. Because no existing file system will recognize a new disk layout, the &quot;RAW&quot; file system will mount the volume and provide direct block level access. The &quot;RAW&quot; file system, incorporated in <b>ntoskrnl</b>, will have the ability to read the file system recognition structure and provide applications access to such structures through the file system control request FSCTL_QUERY_FILE_SYSTEM_RECOGNITION, shown in the following code snippet.</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">Create a new Win32 console application project and give a suitable project name.</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" align="center" style="margin-bottom:0mm;margin-bottom:.0001pt; text-align:center;line-height:normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt;font-family:&quot;Arial&quot;"> <img border="0" width="540" height="396" src="windowsvolumeapis1_files/win32volume005.png" alt="Obtaining File System Recognition Information Example - creating a new win32 project" /></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">Add the source file and give a suitable name.</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" align="center" style="margin-bottom:0mm;margin-bottom:.0001pt; text-align:center;line-height:normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt;font-family:&quot;Arial&quot;"> <img border="0" width="540" height="366" src="windowsvolumeapis1_files/win32volume006.png" alt="Obtaining File System Recognition Information Example - adding a new C++ source file" /></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">Add the following source code.</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="blue" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:blue">#include</span></font><font size="3" face="Courier New"><span style="font-family:&quot;Arial&quot;"> <font color="#a31515"><span style="color:#A31515">&lt;windows.h&gt;</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="blue" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:blue">#include</span></font><font size="3" face="Courier New"><span style="font-family:&quot;Arial&quot;"> <font color="#a31515"><span style="color:#A31515">&lt;stdio.h&gt;</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="blue" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:blue">#include</span></font><font size="3" face="Courier New"><span style="font-family:&quot;Arial&quot;"> <font color="#a31515"><span style="color:#A31515">&lt;wchar.h&gt;</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="green" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:green">// Min client - Windows 7;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="green" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:green">// Min server - Windows Server 2008 R2</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="blue" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:blue">#include</span></font><font size="3" face="Courier New"><span style="font-family:&quot;Arial&quot;"> <font color="#a31515"><span style="color:#A31515">&lt;Winioctl.h&gt;</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="#a31515" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:#A31515">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="blue" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:blue">typedef</span></font><font size="3" face="Courier New"><span style="font-family:&quot;Arial&quot;"> <font color="blue"><span style="color:blue">struct</span></font> _FILE_SYSTEM_RECOGNITION_INFORMATION {</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp; CHAR FileSystem[9];</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">}FILE_SYSTEM_RECOGNITION_INFORMATION, *PFILE_SYSTEM_RECOGNITION_INFORMATION;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">STDMETHODIMP Check(PCWSTR&nbsp; pcwszDrive)</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">{</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; HRESULT&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hr = S_OK;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; HANDLE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hDisk = INVALID_HANDLE_VALUE;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; FILE_SYSTEM_RECOGNITION_INFORMATION&nbsp;&nbsp;&nbsp;&nbsp; FsRi = {0};</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DWORD dwIoControlCode = 0;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; BOOL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fResult = FALSE;&nbsp;&nbsp;&nbsp; </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; ULONG&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BytesReturned = 0;&nbsp;&nbsp;&nbsp; </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; </span> </font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="green"><span style="color:green">// Open the target, for example &quot;\\.\F:&quot;</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;CreateFile() on %s...\n&quot;</span></font>, pcwszDrive);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; hDisk = CreateFile(pcwszDrive, </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FILE_READ_ATTRIBUTES|SYNCHRONIZE|FILE_TRAVERSE,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; FILE_SHARE_READ|FILE_SHARE_WRITE,</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NULL, OPEN_EXISTING, 0, NULL);&nbsp;&nbsp;&nbsp; </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="blue"><span style="color:blue">if</span></font>(hDisk == INVALID_HANDLE_VALUE) </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; {</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hr = GetLastError();</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;CreateFile() failed on %s, error = %u\n&quot;</span></font>, pcwszDrive, GetLastError());</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; }</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;CreateFile() succeeded.\n&quot;</span></font>);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;\nPress Any Key to send down the FSCTL...\n&quot;</span></font>);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; _getwch();</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="green"><span style="color:green">// Send down the FSCTL</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf( L<font color="#a31515"><span style="color:#A31515">&quot;Calling DeviceIoControl(...,FSCTL_QUERY_FILE_SYSTEM_RECOGNITION,...)\n&quot;</span></font> );</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="green"><span style="color:green">// http://msdn.microsoft.com/en-us/library/aa365729%28VS.85%29.aspx</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="green"><span style="color:green">// and another one: http://msdn.microsoft.com/en-us/library/cc232013%28PROT.10%29.aspx</span></font></span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; fResult = DeviceIoControl(hDisk, FSCTL_QUERY_FILE_SYSTEM_RECOGNITION, NULL, 0,</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;FsRi, <font color="blue"><span style="color:blue">sizeof</span></font>(FsRi), &amp;BytesReturned, NULL );</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="blue"><span style="color:blue">if</span></font>(!fResult) </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; {</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hr = HRESULT_FROM_WIN32(GetLastError());</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;DeviceIoControl() failed, error %u\n&quot;</span></font>, GetLastError());</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; }</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;DeviceIoControl() succeeded.\n&quot;</span></font>);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;FSCTL_QUERY_FILE_SYSTEM_RECOGNITION returned success.\n&quot;</span></font>);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; wprintf(L<font color="#a31515"><span style="color:#A31515">&quot;FSCTL_QUERY_FILE_SYSTEM_RECOGNITION thinks the filesystem is \&quot;%s\&quot;.\n&quot;</span></font>, FsRi.FileSystem);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="blue"><span style="color:blue">if</span></font>(hDisk != INVALID_HANDLE_VALUE) </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; {</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CloseHandle(hDisk);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hDisk = INVALID_HANDLE_VALUE;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; }</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp; <font color="blue"><span style="color:blue">return</span></font> hr;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">}</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" color="blue" face="Courier New"> <span style="font-family:&quot;Arial&quot;;color:blue">int</span></font><font size="3" face="Courier New"><span style="font-family:&quot;Arial&quot;"> wmain(<font color="blue"><span style="color:blue">int</span></font> argc, WCHAR **argv)</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">{ </span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Check(L<font color="#a31515"><span style="color:#A31515">&quot;\\\\.\\C:&quot;</span></font>);</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <font color="blue"><span style="color:blue">return</span></font> 0;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Courier New"> <span style="font-family:&quot;Arial&quot;">}</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">&nbsp;</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal"><font size="3" face="Times New Roman"> <span style="font-size:12.0pt; font-family:&quot;Arial&quot;">Take note that the FSCTL_QUERY_FILE_SYSTEM_RECOGNITION cannot be found in the <b>Winioctl.h</b> header file at the moment this program example was tested. It is intended for vendors and the minimum system to run this program is Windows 7/Server 2008 R2.</span></font></p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt;line-height: normal">&nbsp;</p> <p class="MsoNormal" style="margin-bottom:0mm;margin-bottom:.0001pt" align="center"> <script type="text/javascript"><!-- google_ad_client = "pub-8089415323104206"; google_ad_slot = "2156170134"; google_ad_width = 728; google_ad_height = 15; //--> </script> &nbsp;<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script></p> <h3 align="center" style="margin-top: 0; margin-bottom: 0"> <font face="Byington"><span style="font-weight: 400">&nbsp; &lt; <a title="Win32 file system recognition programming" href="windowsvolumeapis1_1.html"> Windows Volume 2</a> | <a title="The Win32 programming tutorial using Visual Studio, C and C++ languages" href="index.html"> Win32 Programming Index</a> | <a title="Windows storage/volume programming tutorials" href="windowsvolumeapis1index.html"> Windows Volume Index</a> | <a title="Windows Win32 volume GUID C code and program example" href="windowsvolumeapis1_3.html"> Windows Volume 4</a> &gt;</span></font></h3> <div align="center"> <script src="http://tag.contextweb.com/TagPublish/getjs.aspx?action=VIEWAD&cwrun=200&cwadformat=728X90&cwpid=527221&cwwidth=728&cwheight=90&cwpnet=1&cwtagid=82740"></script> </div> </div> </body> </html>