private ProductSuite GetProductSuite(Kernel32.OSVERSIONINFOEX osVersion)
{
ProductSuite suite = (ProductSuite)osVersion.SuiteMask;
// Query system metrics to detect other sku data...
if (SystemMetrics.GetSystemMetric(SystemMetric.TabletPC) != 0)
{
suite |= ProductSuite.TabletPC;
}
if (SystemMetrics.GetSystemMetric(SystemMetric.MediaCenter) != 0)
{
suite |= ProductSuite.MediaCenter;
}
if (SystemMetrics.GetSystemMetric(SystemMetric.StarterEdition) != 0)
{
suite |= ProductSuite.StarterEdition;
}
if (SystemMetrics.GetSystemMetric(SystemMetric.ServerR2) != 0)
{
suite |= ProductSuite.ServerR2;
}
return(suite);
}
/// <inheritdoc cref="RtlGetVersion(ref Kernel32.OSVERSIONINFO)"/>
public static unsafe NTSTATUS RtlGetVersion(ref Kernel32.OSVERSIONINFOEX versionInformation)
{
fixed(Kernel32.OSVERSIONINFOEX *versionInformationLocal = &versionInformation)
{
return(RtlGetVersion(versionInformationLocal));
}
}
private Win32.Kernel32.OSVERSIONINFOEX GetOSVersion()
{
Kernel32.OSVERSIONINFOEX versionInfo = new Kernel32.OSVERSIONINFOEX();
versionInfo.Size = Marshal.SizeOf(typeof(Kernel32.OSVERSIONINFOEX));
if (!Kernel32.GetVersionEx(ref versionInfo))
{
throw new Win32Exception();
}
return(versionInfo);
}
/// <summary>
/// Initializes a new instance of this class.
/// </summary>
private SystemInformation()
{
osVersionInfo = GetOSVersion();
product = GetProduct(osVersionInfo);
productSuite = GetProductSuite(osVersionInfo);
vistaProductType = GetVistaProductType(osVersionInfo);
// calculate the build revision number by examining the file version of kernel32.dll
// Environment.SpecialFolder.System
string kernel32Path = Environment.GetFolderPath(Environment.SpecialFolder.System) + "\\kernel32.dll";
kernel32Version = FileVersionInfo.GetVersionInfo(kernel32Path);
}
private VistaProductType GetVistaProductType(Kernel32.OSVERSIONINFOEX osVersion)
{
VistaProductType vistaProduct = VistaProductType.None;
// if this is a vista or longhorn install, call the new GetProductInfo API to retreive SKU data...
if (osVersion.MajorVersion >= 6)
{
int productType = 0;
if (Kernel32.GetProductInfo(osVersion.MajorVersion, osVersion.MinorVersion, osVersion.ServicePackMajor, osVersion.ServicePackMinor, ref productType) != 0)
{
if (productType != 0)
{
vistaProduct = (VistaProductType)productType;
}
else
{
vistaProduct = VistaProductType.StorageEnterpriseServer;
}
}
}
return(vistaProduct);
}
private Product GetProduct(Kernel32.OSVERSIONINFOEX osVersion)
{
Product product = Product.None;
//Get the product
switch (osVersion.MajorVersion)
{
case 4:
product = Product.WindowsNT4;
break;
case 5:
switch (osVersion.MinorVersion)
{
case 0:
product = Product.Windows2000;
break;
case 1:
product = Product.WindowsXP;
break;
case 2:
//Windows XP x64 actually has version 5.2
if (OSProductType != OSProductType.Workstation)
{
product = Product.WindowsServer2003;
}
else
{
product = Product.WindowsXP;
}
break;
default:
product = Product.None;
break;
}
break;
case 6:
switch (osVersion.MinorVersion)
{
case 0:
//Both Vista and LH Server have major version 6. "LH Server" is Windows Server 2008.
if (OSProductType == OSProductType.Workstation && Environment.OSVersion.Platform == PlatformID.Win32NT)
{
product = Product.WindowsVista;
}
else
{
product = Product.LHServer;
}
break;
case 1:
if (OSProductType == OSProductType.Workstation && Environment.OSVersion.Platform == PlatformID.Win32NT)
{
product = Product.Windows7;
}
else
{
product = Product.WindowsServer2008R2;
}
break;
case 2:
product = Product.Windows8;
break;
}
break;
default:
product = Product.None;
break;
}
return(product);
}
