public static extern bool GetVersionEx(ref OSVERSIONINFO osvi);
public static OSName GetVersion()
{
OSName result = default(OSName);
try
{
OSVERSIONINFO oSVERSIONINFO = default(OSVERSIONINFO);
oSVERSIONINFO.dwOSVersionInfoSize = (uint)Marshal.SizeOf(oSVERSIONINFO);
if (OS.GetVersionEx(ref oSVERSIONINFO))
{
if (oSVERSIONINFO.dwPlatformId == 2u)
{
switch (oSVERSIONINFO.dwMajorVersion)
{
case 3u:
result = OSName.WinNT3;
break;
case 4u:
result = OSName.WinNT4;
break;
case 5u:
switch (oSVERSIONINFO.dwMinorVersion)
{
case 0u:
result = OSName.Win2000;
break;
case 1u:
result = OSName.WinXP;
break;
case 2u:
result = OSName.Win2003;
break;
default:
result = OSName.UNKNOWN;
break;
}
break;
case 6u:
result = OSName.Win7;
break;
default:
result = OSName.UNKNOWN;
break;
}
}
else
{
if (oSVERSIONINFO.dwMajorVersion == 4u)
{
uint dwMinorVersion = oSVERSIONINFO.dwMinorVersion;
if (dwMinorVersion != 0u)
{
if (dwMinorVersion != 10u)
{
if (dwMinorVersion != 90u)
{
result = OSName.UNKNOWN;
}
else
{
result = OSName.WinME;
}
}
else
{
result = OSName.Win98;
}
}
else
{
result = OSName.Win95;
}
}
else
{
result = OSName.UNKNOWN;
}
}
}
else
{
result = OSName.UNKNOWN;
}
}
catch (Exception ex)
{
LogManage.WriteLog(typeof(OS), ex);
}
return(result);
}