Win95/98 or WinNT??

[liveForTen]

I need a program to be able to tell if it is being run in Windows NT or not. Is there an API that can tell me this?

[john_murphy]

Try this I nicked it from the about wizard

[email protected]

rc = RegQueryValueEx(hKey, SubKeyRef, 0, _
KeyValType, tmpVal, KeyValSize) ' Get/Create Key Value

If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError ' Handle Errors

If (Asc(Mid(tmpVal, KeyValSize, 1)) = 0) Then
' Win95
Else ' WinNT
endif

[Serge]

There is an API to get the paltform version:

Private Type OSVERSIONINFO
        dwOSVersionInfoSize As Long
        dwMajorVersion As Long
        dwMinorVersion As Long
        dwBuildNumber As Long
        dwPlatformId As Long
        szCSDVersion As String * 128      '  Maintenance string for PSS usage
End Type
Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (lpVersionInformation As OSVERSIONINFO) As Long
Private Const VER_PLATFORM_WIN32s = 0
Private Const VER_PLATFORM_WIN32_WINDOWS = 1
Private Const VER_PLATFORM_WIN32_NT = 2

'---------Put this on any event you want

    Dim os As OSVERSIONINFO
    Dim lret As Long
    
    lret = GetVersionEx(os)
    If lret <> 0 Then
        Select Case os.dwPlatformId
            Case VER_PLATFORM_WIN32s
                MsgBox "Window3.1/3.11"
            Case VER_PLATFORM_WIN32_WINDOWS
                MsgBox "Window95/98"
            Case VER_PLATFORM_WIN32_NT
                MsgBox "WindowNT"
        End Select
    Else
        MsgBox "Error retrieving platform version."
    End If

------------------

Serge

Software Developer
[email protected]
[email protected]
ICQ#: 51055819



[This message has been edited by Serge (edited 11-18-1999).]

[liveForTen]

Thanks guys. I knew this one would be an easy one for the likes of you VBPros. Thanks again.

[liveForTen]

I don't suppose any would still be interested in this topic as at this late date it is now relegated to the antiquated page 3, but here goes...

I tried solution #2 because I did not want to get in to registry keys and stuff. There was one step missing between assigning the return value of the API to a variable:

lret = GetVersionEx(os)

and:

Select case os.dwPlatformId

I found the missing step in Dan Appleman's guide to the windows API. You must first set the size of the OSVERSIONINFO Type:

os.dwOSVersionInfoSize = SIZE_OF_OSVERSIONINFO

where SIZE_OF_OSVERSIONINFO = 148.

If you don't do this, all values return as 0.