Option Explicit
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' Copyright ©1996-2011 VBnet/Randy Birch, All Rights Reserved.
' Some pages may also contain other copyrights by the author.
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' Distribution: You can freely use this code in your own
' applications, but you may not reproduce
' or publish this code on any web site,
' online service, or distribute as source
' on any media without express permission.
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Private Declare Function GetFileVersionInfoSize Lib "version.dll" _
Alias "GetFileVersionInfoSizeA" _
(ByVal lptstrFilename As String, _
lpdwHandle As Long) As Long
Private 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
Private Declare Function VerQueryValue Lib "version.dll" _
Alias "VerQueryValueA" _
(pBlock As Any, _
ByVal lpSubBlock As String, _
lpBuffer As Any, _
nVerSize As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" _
Alias "RtlMoveMemory" _
(Destination As Any, _
Source As Any, _
ByVal Length As Long)
Private Sub Form_Load()
Command1.Caption = "Shell Version"
End Sub
Private Sub Command1_Click()
Text1.Text = IsShellVersion(3)
Text2.Text = IsShellVersion(5)
Text3.Text = IsShellVersion(6)
End Sub
Private Function IsShellVersion(ByVal version As Long) As Boolean
'returns True if the Shell version
'(shell32.dll) is equal or later than
'the value passed as 'version'
Dim nBufferSize As Long
Dim nUnused As Long
Dim lpBuffer As Long
Dim nVerMajor As Integer
Dim bBuffer() As Byte
Const sDLLFile As String = "shell32.dll"
nBufferSize = GetFileVersionInfoSize(sDLLFile, nUnused)
If nBufferSize > 0 Then
ReDim bBuffer(nBufferSize - 1) As Byte
Call GetFileVersionInfo(sDLLFile, 0&, nBufferSize, bBuffer(0))
If VerQueryValue(bBuffer(0), "\", lpBuffer, nUnused) = 1 Then
CopyMemory nVerMajor, ByVal lpBuffer + 10, 2
IsShellVersion = nVerMajor >= version
End If 'VerQueryValue
End If 'nBufferSize
End Function
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Some
APIs, notably the Shell_NotifyIcon API, require the an application tailor
its code to accommodate the version of Windows shell32.dll. This demo
provides the code; by passing a version number to the routine it will
return True if shell32.dll is at least that version. This
information can then be used to adjust the app to perform tasks
applicable to the Shell's available methods.
