C# Signature:

[DllImport("kernel32", SetLastError = true)]
private static extern bool GetVersionEx(ref OSVERSIONINFOEX osvi);

[StructLayout(LayoutKind.Sequential)]
private struct OSVERSIONINFOEX
{
    public int dwOSVersionInfoSize;
    public int dwMajorVersion;
    public int dwMinorVersion;
    public int dwBuildNumber;
    public int dwPlatformId;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
    public string szCSDVersion;
    public UInt16 wServicePackMajor;
    public UInt16 wServicePackMinor;
    public UInt16 wSuiteMask;
    public byte wProductType;
    public byte wReserved;
}

VB Signature:

Declare Function APIGetVersionEx Lib "kernel32.dll" (TODO) As TODO

User-Defined Types:

None.

Notes:

None.

Tips & Tricks:

don't forget to set the dwOSVersionInfoSize  

Sample Code:

OSVERSIONINFOEX osVersionInfo = new OSVERSIONINFOEX();
osVersionInfo.dwOSVersionInfoSize = Marshal.SizeOf(osVersionInfo); // don't forget this line, please!
GetVersionEx(ref osVersionInfo);

Alternative Managed API:

Do you know one? Please contribute it!

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).