Operating System

[Rajesh M]

From Visual Basic Code how can i know the underlying Operating System.

[Clearcode]

You could use the EventVB.dll which is downloadable from http://www.merrioncomputing.com/Download/index.htm thus:


option Explicit

Dim withevents ApiLink as EventVB.APIFunctions

private Sub Form_Load()

set ApiLink = new EventVB.APIFunctions

With ApiLink.System
Select Case .WindowsOSVersion
Case ver_Win_95
Debug.print "Windows 95"
Case ver_Win_98
Debug.print "Windows 98"
Case ver_Win_Me
Debug.print "Windows me "
Case ver_Win_NT351
Debug.print "Windows NT 3.51"
Case ver_win_nt4
Debug.print "Windows NT 4 "
Case ver_Win_Win2000
Debug.print "Windows 2000 "
Case ver_win_Whistler
Debug.print "Whistler (Beta) "
End Select
Debug.print "Build " & .WindowsOSBuild
Debug.print .WindowsOSCSDVersion
End With

End Sub




For me this returns:

Windows NT 4
Build 1381
Service Pack 4


HTH,
Duncan

-------------------------------------------------
Ex. Datis: Duncan Jones
Merrion Computing Ltd
http://www.merrioncomputing.com
Check out the new downloads - ImageMap.ocx is the VB control that emulates an HTML image map, EventVB.OCX for adding new events to your VB form and adding System Tray support simply, MCL Hotkey for implemenmting system-wide hotkeys in your application...all with source code included.

[Iouri]

'form
Private Sub Command1_Click()
MsgBox GetOSVer
End Sub

'module

Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" _
(lpVersionInformation As OSVERSIONINFOEX) As Long


Private Type OSVERSIONINFOEX
dwOSVersionInfoSize As Long
dwMajorVersion As Long
dwMinorVersion As Long
dwBuildNumber As Long
dwPlatformId As Long
szCSDVersion As String * 128
wServicePackMajor As Integer
wServicePackMinor As Integer
wSuiteMask As Integer
wProductType As Byte
wReserved As Byte
End Type
'used for platform id
Const VER_PLATFORM_WIN32s = 0 'win 3.x
Const VER_PLATFORM_WIN32_WINDOWS = 1 'win 9.x
Const VER_PLATFORM_WIN32_NT = 2 'win nt,2000,XP
'used for product type
Const VER_NT_WORKSTATION = 1
Const VER_NT_SERVER = 3
'used for suite mask
Const VER_SUITE_DATACENTER = 128
Const VER_SUITE_ENTERPRISE = 2
Const VER_SUITE_PERSONAL = 512


Public Function GetOSVer() As String
Dim osv As OSVERSIONINFOEX
osv.dwOSVersionInfoSize = Len(osv)


If GetVersionEx(osv) = 1 Then


Select Case osv.dwPlatformId
Case Is = VER_PLATFORM_WIN32s
GetOSVer = "Windows 3.x"
Case Is = VER_PLATFORM_WIN32_WINDOWS


Select Case osv.dwMinorVersion
Case Is = 0


If InStr(UCase(osv.szCSDVersion), "C") Then
GetOSVer = "Windows 95 OSR2"
Else
GetOSVer = "Windows 95"
End If
Case Is = 10


If InStr(UCase(osv.szCSDVersion), "A") Then
GetOSVer = "Windows 98 SE"
Else
GetOSVer = "Windows 98"
End If
Case Is = 90
GetOSVer = "Windows Me"
End Select
Case Is = VER_PLATFORM_WIN32_NT


Select Case osv.dwMajorVersion
Case Is = 3


Select Case osv.dwMinorVersion
Case Is = 0
GetOSVer = "Windows NT 3"
Case Is = 1
GetOSVer = "Windows NT 3.1"
Case Is = 5
GetOSVer = "Windows NT 3.5"
Case Is = 51
GetOSVer = "Windows NT 3.51"
End Select
Case Is = 4
GetOSVer = "Windows NT 4"
Case Is = 5


Select Case osv.dwMinorVersion
Case Is = 0 'win 2000


Select Case osv.wProductType
Case Is = VER_NT_WORKSTATION
GetOSVer = "Windows 2000 Professional"
Case Is = VER_NT_SERVER


Select Case osv.wSuiteMask
Case Is = VER_SUITE_DATACENTER
GetOSVer = "Windows 2000 DataCenter Server"
Case Is = VER_SUITE_ENTERPRISE
GetOSVer = "Windows 2000 Advanced Server"
Case Else
GetOSVer = "Windows 2000 Server"
End Select
End Select
Case Is = 1 'win XP or win .NET server


Select Case osv.wProductType
Case Is = VER_NT_WORKSTATION 'win XP


If osv.wSuiteMask = VER_SUITE_PERSONAL Then
GetOSVer = "Windows XP Home Edition"
Else
GetOSVer = "Windows XP Professional"
End If
Case Else


If osv.wSuiteMask = VER_SUITE_ENTERPRISE Then
GetOSVer = "Windows .NET Enterprise Server"
Else
GetOSVer = "Windows .NET Server"
End If
End Select
End Select
End Select
End Select
End If
End Function





Iouri Boutchkine
iouri@hotsheet.com