VB中如何得到一个文件的句柄？

我需要读取一个文件的创建时间、修改时间，使用API必须知道这个文件的句柄，请问怎么得到？

'这是一个获取文件信息的程序
form部分
Private Sub DisplayVerInfo()
'*** 这个子程序获取文件的版本信息 ****
Dim rc As Long
Dim lDummy As Long
Dim sBuffer() As Byte
Dim lBufferLen As Long
Dim lVerPointer As Long
Dim udtVerBuffer As VS_FIXEDFILEINFO
Dim lVerbufferLen As Long
Dim aBuffer() As Byte
Dim lAdd As Long
Dim astr As String
Dim lTran As Long
'*** Get size ****
lBufferLen = GetFileVersionInfoSize(FullFileName, lDummy)
If lBufferLen < 1 Then
MsgBox "无法获取文件版本信息!"
Exit Sub
End If
'**** 获取文件信息并且保存到udtVerBuffer结构中 ****
ReDim sBuffer(lBufferLen)
rc = GetFileVersionInfo(FullFileName, 0&, lBufferLen, sBuffer(0))
rc = VerQueryValue(sBuffer(0), "\", lVerPointer, lVerbufferLen)
MoveMemory udtVerBuffer, lVerPointer, Len(udtVerBuffer)

StrucVer = Format$(udtVerBuffer.dwStrucVersionh) & "." & _
Format$(udtVerBuffer.dwStrucVersionl)
'**** 获得文件版本 ****
FileVer = Format$(udtVerBuffer.dwFileVersionMSh) & "." & _
Format$(udtVerBuffer.dwFileVersionMSl) & "." & _
Format$(udtVerBuffer.dwFileVersionLSh) & "." & _
Format$(udtVerBuffer.dwFileVersionLSl)
'**** 获取产品版本 ****
ProdVer = Format$(udtVerBuffer.dwProductVersionMSh) & "." & _
Format$(udtVerBuffer.dwProductVersionMSl) & "." & _
Format$(udtVerBuffer.dwProductVersionLSh) & "." & _
Format$(udtVerBuffer.dwProductVersionLSl)
'**** 获取文件类型 ****
FileFlags = ""
If udtVerBuffer.dwFileFlags And VS_FF_DEBUG _
Then FileFlags = "Debug "
If udtVerBuffer.dwFileFlags And VS_FF_PRERELEASE _
Then FileFlags = FileFlags & "PreRel "
If udtVerBuffer.dwFileFlags And VS_FF_PATCHED _
Then FileFlags = FileFlags & "Patched "
If udtVerBuffer.dwFileFlags And VS_FF_PRIVATEBUILD _
Then FileFlags = FileFlags & "Private "
If udtVerBuffer.dwFileFlags And VS_FF_INFOINFERRED _
Then FileFlags = FileFlags & "Info "
If udtVerBuffer.dwFileFlags And VS_FF_SPECIALBUILD _
Then FileFlags = FileFlags & "Special "
If udtVerBuffer.dwFileFlags And VFT2_UNKNOWN _
Then FileFlags = FileFlags "Unknown "
'**** 获取文件所适应的操作系统 ****
Select Case udtVerBuffer.dwFileOS
Case VOS_WINDOWS32
FileOS = "Win32位操作系统"
Case VOS_WINDOWS16
FileOS = "Win16位操作系统"
Case VOS_DOS
FileOS = "DOS操作系统"
Case VOS_DOS_WINDOWS16
FileOS = "DOS-Win16操作系统"
Case VOS_DOS_WINDOWS32
FileOS = "DOS-Win32操作系统"
Case VOS_OS216_PM16
FileOS = "OS/2-16 PM-16操作系统"
Case VOS_OS232_PM32
FileOS = "OS/2-16 PM-32操作系统"
Case VOS_NT_WINDOWS32
FileOS = "NT-Win32操作系统"
Case Else
FileOS = "未知操作系统"
End Select
Select Case udtVerBuffer.dwFileType
Case VFT_APP
FileType = "应用程序"
Case VFT_DLL
FileType = "动态连接库"
Case VFT_DRV
FileType = "驱动程序"
Select Case udtVerBuffer.dwFileSubtype
Case VFT2_DRV_PRINTER
FileSubType = "打印驱动程序"
Case VFT2_DRV_KEYBOARD
FileSubType = "键盘驱动程序"
Case VFT2_DRV_LANGUAGE
FileSubType = "语言模块"
Case VFT2_DRV_DISPLAY
FileSubType = "显示驱动程序"
Case VFT2_DRV_MOUSE
FileSubType = "鼠标驱动程序"
Case VFT2_DRV_NETWORK
FileSubType = "网络驱动程序"
Case VFT2_DRV_SYSTEM
FileSubType = "系统驱动程序"
Case VFT2_DRV_INSTALLABLE
FileSubType = "Installable"
Case VFT2_DRV_SOUND
FileSubType = "声音驱动程序"
Case VFT2_DRV_COMM
FileSubType = "串行驱动程序"
Case VFT2_UNKNOWN
FileSubType = "未知驱动程序"
End Select
Case VFT_FONT
FileType = "字体"
Select Case udtVerBuffer.dwFileSubtype
Case VFT_FONT_RASTER
FileSubType = "光栅字体"
Case VFT_FONT_VECTOR
FileSubType = "矢量字体"
Case VFT_FONT_TRUETYPE
FileSubType = "TrueType字体"
End Select
Case VFT_VXD
FileType = "VxD"
Case VFT_STATIC_LIB
FileType = "Lib"
Case Else
FileType = "未知"
End Select
Form1.CurrentX = 4
Form1.CurrentY = 4
Form1.Print "文件全路径:"
Form1.CurrentX = 4
Form1.Print "文件版本:"
Form1.CurrentX = 4
Form1.Print "产品版本:"
Form1.CurrentX = 4
Form1.Print "文件标志:"
Form1.CurrentX = 4
Form1.Print "操作系统:"
Form1.CurrentX = 4
Form1.Print "文件类型:"
Form1.CurrentX = 4
Form1.Print "文件子类型:"
Form1.CurrentX = 60
Form1.CurrentY = 4
Form1.Print FullFileName
Form1.CurrentX = 60
Form1.Print FileVer
Form1.CurrentX = 60
Form1.Print ProdVer
Form1.CurrentX = 60
Form1.Print FileFlags
Form1.CurrentX = 60
Form1.Print FileOS
Form1.CurrentX = 60
Form1.Print FileType
Form1.CurrentX = 60
Form1.Print FileSubType
'清除上一次保存的信息
FullFileName = ""
FileVer = ""
ProdVer = ""
FileFlags = ""
FileOS = ""
FileType = ""
FileSubType = ""

ReDim aBuffer(lBufferLen)
Dim ab As VS_NEWINFO

lVerPointer = 0
rc = GetFileVersionInfo(FullFileName, 0&, lBufferLen, sBuffer(0))
rc = VerQueryValue(sBuffer(0), "\VarFileInfo\Translation", lVerPointer, lVerbufferLen)
MoveMemory lTran, lVerPointer, 4&
astr = "0" Hex$(lTran)
astr = Right$(astr, 4) Left$(astr, 4)
rc = VerQueryValue(sBuffer(0), "\StringFileInfo\" astr "\FileDescription", lVerPointer, lVerbufferLen)
MoveMemory ab, lVerPointer, Len(ab)
Form1.CurrentX = 4
Form1.Print "文件描述";
Form1.CurrentX = 60
Form1.Print Left$(ab.astr, (InStr(ab.astr, Chr$(0)) - 1))

rc = VerQueryValue(sBuffer(0), "\StringFileInfo\" astr "\ProductName", lVerPointer, lVerbufferLen)
If rc Then
MoveMemory ab, lVerPointer, Len(ab)
Form1.CurrentX = 4
Form1.Print "产品名称";
Form1.CurrentX = 60
Form1.Print Left$(ab.astr, (InStr(ab.astr, Chr$(0)) - 1))
End If

rc = VerQueryValue(sBuffer(0), "\StringFileInfo\" astr "\OriginalFilename", lVerPointer, lVerbufferLen)
If rc Then
MoveMemory ab, lVerPointer, Len(ab)
Form1.CurrentX = 4
Form1.Print "文件原始名";
Form1.CurrentX = 60
Form1.Print Left$(ab.astr, (InStr(ab.astr, Chr$(0)) - 1))
End If

rc = VerQueryValue(sBuffer(0), "\StringFileInfo\" astr "\InternalName", lVerPointer, lVerbufferLen)
If rc Then
MoveMemory ab, lVerPointer, Len(ab)
Form1.CurrentX = 4
Form1.Print "文件内部名";
Form1.CurrentX = 60
Form1.Print Left$(ab.astr, (InStr(ab.astr, Chr$(0)) - 1))
End If

rc = VerQueryValue(sBuffer(0), "\StringFileInfo\" astr "\CompanyName", lVerPointer, lVerbufferLen)
If rc Then
MoveMemory ab, lVerPointer, Len(ab)
Form1.CurrentX = 4
Form1.Print "公司名称";
Form1.CurrentX = 60
Form1.Print Left$(ab.astr, (InStr(ab.astr, Chr$(0)) - 1))
End If

rc = VerQueryValue(sBuffer(0), "\StringFileInfo\" astr "\LegalCopyright", lVerPointer, lVerbufferLen)
If rc Then
MoveMemory ab, lVerPointer, Len(ab)
Form1.CurrentX = 4
Form1.Print "版权所有";
Form1.CurrentX = 60
Form1.Print Left$(ab.astr, (InStr(ab.astr, Chr$(0)) - 1))
End If
End Sub
Private Sub Command1_Click()
Form1.Cls
CommonDialog1.ShowOpen
FullFileName = CommonDialog1.Filename
If FullFileName = "" Then
Exit Sub
End If
Call DisplayVerInfo
End Sub

模块部分
' **** 全局定义 ****
Public Filename As String
Public Directory As String
Public FullFileName As String
Public StrucVer As String
Public FileVer As String
Public ProdVer As String
Public FileFlags As String
Public FileOS As String
Public FileType As String
Public FileSubType As String

Type VS_NEWINFO
astr As String * 1024
End Type

Type VS_FIXEDFILEINFO
dwSignature As Long
dwStrucVersionl As Integer
dwStrucVersionh As Integer
dwFileVersionMSl As Integer
dwFileVersionMSh As Integer
dwFileVersionLSl As Integer
dwFileVersionLSh As Integer
dwProductVersionMSl As Integer
dwProductVersionMSh As Integer
dwProductVersionLSl As Integer
dwProductVersionLSh As Integer
dwFileFlagsMask As Long
dwFileFlags As Long
dwFileOS As Long
dwFileType As Long
dwFileSubtype As Long
dwFileDateMS As Long
dwFileDateLS As Long
End Type
Declare Function GetFileVersionInfo Lib "Version.dll" Alias _
"GetFileVersionInfoA" (ByVal lptstrFilename As String, ByVal _
dwhandle As Long, ByVal dwlen As Long, lpData As Any) As Long
Declare Function GetFileVersionInfoSize Lib "Version.dll" Alias _
"GetFileVersionInfoSizeA" (ByVal lptstrFilename As String, _
lpdwHandle As Long) As Long
Declare Function VerQueryValue Lib "Version.dll" Alias _
"VerQueryValueA" (pBlock As Any, ByVal lpSubBlock As String, _
lplpBuffer As Any, puLen As Long) As Long
Declare Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" _
(dest As Any, ByVal Source As Long, ByVal length As Long)
Declare Function GetSystemDirectory Lib "kernel32" Alias _
"GetSystemDirectoryA" (ByVal Path As String, ByVal cbBytes As Long) As Long

Public Const VS_FFI_SIGNATURE = &HFEEF04BD
Public Const VS_FFI_STRUCVERSION = &H10000
Public Const VS_FFI_FILEFLAGSMASK = &H3F&

Public Const VS_FF_DEBUG = &H1
Public Const VS_FF_PRERELEASE = &H2
Public Const VS_FF_PATCHED = &H4
Public Const VS_FF_PRIVATEBUILD = &H8
Public Const VS_FF_INFOINFERRED = &H10
Public Const VS_FF_SPECIALBUILD = &H20

Public Const VOS_UNKNOWN = &H0
Public Const VOS_DOS = &H10000
Public Const VOS_OS216 = &H20000
Public Const VOS_OS232 = &H30000
Public Const VOS_NT = &H40000
Public Const VOS_BASE = &H0
Public Const VOS_WINDOWS16 = &H1
Public Const VOS_PM16 = &H2
Public Const VOS_PM32 = &H3
Public Const VOS_WINDOWS32 = &H4
Public Const VOS_DOS_WINDOWS16 = &H10001
Public Const VOS_DOS_WINDOWS32 = &H10004
Public Const VOS_OS216_PM16 = &H20002
Public Const VOS_OS232_PM32 = &H30003
Public Const VOS_NT_WINDOWS32 = &H40004

Public Const VFT_UNKNOWN = &H0
Public Const VFT_APP = &H1
Public Const VFT_DLL = &H2
Public Const VFT_DRV = &H3
Public Const VFT_FONT = &H4
Public Const VFT_VXD = &H5
Public Const VFT_STATIC_LIB = &H7

Public Const VFT2_UNKNOWN = &H0
Public Const VFT2_DRV_PRINTER = &H1
Public Const VFT2_DRV_KEYBOARD = &H2
Public Const VFT2_DRV_LANGUAGE = &H3
Public Const VFT2_DRV_DISPLAY = &H4
Public Const VFT2_DRV_MOUSE = &H5
Public Const VFT2_DRV_NETWORK = &H6
Public Const VFT2_DRV_SYSTEM = &H7
Public Const VFT2_DRV_INSTALLABLE = &H8
Public Const VFT2_DRV_SOUND = &H9
Public Const VFT2_DRV_COMM = &HA

VB声明 Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long 说明 寻找窗口列表中第一个符合指定条件的顶级窗口（在vb里使用：FindWindow最常见的一个用途是获得ThunderRTMain类的隐藏窗口的句柄；该类是所有运行中vb执行程序的一部分。获得句柄后，可用api函数GetWindowText取得这个窗口的名称；该名也是应用程序的标题） 返回值 Long，找到窗口的句柄。如未找到相符窗口，则返回零。会设置GetLastError 参数表 参数 类型及说明 lpClassName String，指向包含了窗口类名的空中止（C语言）字串的指针；或设为零，表示接收任何类 lpWindowName String，指向包含了窗口文本（或标签）的空中止（C语言）字串的指针；或设为零，表示接收任何窗口标题