public static string GetMimeType(string fileName)
{
if (!string.IsNullOrEmpty(fileName))
{
string ext = Path.GetExtension(fileName).ToLowerInvariant();
if (!string.IsNullOrEmpty(ext))
{
string mimeType = MimeTypes.GetMimeType(ext);
if (!string.IsNullOrEmpty(mimeType))
{
return(mimeType);
}
mimeType = RegistryHelpers.GetRegistryValue(ext, "Content Type", RegistryHive.ClassesRoot);
if (!string.IsNullOrEmpty(mimeType))
{
return(mimeType);
}
}
}
return(MimeTypes.DefaultMimeType);
}
public static string GetOperatingSystemProductName(bool includeBit = false)
{
string productName = null;
try
{
productName = RegistryHelpers.GetRegistryValue(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "ProductName", RegistryHive.LocalMachine);
}
catch
{
}
if (string.IsNullOrEmpty(productName))
{
productName = Environment.OSVersion.VersionString;
}
if (includeBit)
{
string bit;
if (Environment.Is64BitOperatingSystem)
{
bit = "64";
}
else
{
bit = "32";
}
productName = $"{productName} ({bit}-bit)";
}
return(productName);
}
public static string GetWindowsProductName()
{
try
{
string productName = RegistryHelpers.GetRegistryValue(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "ProductName", RegistryHive.LocalMachine);
if (!string.IsNullOrEmpty(productName))
{
return(productName);
}
}
catch
{
}
return(Environment.OSVersion.VersionString);
}
