public static void UnregisterFileType(string fileType, bool unregMediaType)
{
KnownFileTypeInfo info = new KnownFileTypeInfo(fileType, true, true);
if (info.IsValid)
{
if (unregMediaType)
{
// ==== Unregister media type ====
using (RegistryKey mediaTypeKey = Registry.ClassesRoot.CreateSubKey(info.MediaType))
{
if (mediaTypeKey != null)
{
mediaTypeKey.SetValue("", "");
// ==== Unregister icon ====
using (RegistryKey defaultIconKey = mediaTypeKey.CreateSubKey("DefaultIcon"))
{
if (defaultIconKey != null)
{
defaultIconKey.SetValue("", "");
}
}
mediaTypeKey.DeleteSubKeyTree("shell", false);
}
}
}
}
}
public static void RegisterFileType(string fileType, bool regMediaType)
{
KnownFileTypeInfo info = new KnownFileTypeInfo(fileType, true, false);
if (info.IsValid)
{
if (regMediaType)
{
// ==== Register media type ====
using (RegistryKey mediaTypeKey = Registry.ClassesRoot.CreateSubKey(info.MediaType))
{
if (mediaTypeKey != null)
{
mediaTypeKey.SetValue("", info.MediaType);
}
// ==== Register icon ====
using (RegistryKey defaultIconKey = mediaTypeKey.CreateSubKey("DefaultIcon"))
{
if (defaultIconKey != null)
{
string newValue = string.Format(@"{0}\Resources\{1}.ico", AppConfig.InstallationPath, info.KnownFileType);
defaultIconKey.SetValue("", newValue);
}
}
if (File.Exists(info.LaunchPath))
{
using (RegistryKey shellKey = mediaTypeKey.CreateSubKey("shell"))
{
if (shellKey != null)
{
// ==== Change default action to OPEN ====
shellKey.SetValue("", "open");
// ==== Update OPEN action command ====
using (RegistryKey key = shellKey.CreateSubKey("open\\command"))
{
if (key != null)
{
key.SetValue("", string.Format("\"{0}\" launch \"%L\"", info.LaunchPath));
}
}
}
}
}
else
{
mediaTypeKey.DeleteSubKeyTree("shell", false);
}
}
}
}
}
public static bool IsFileTypeRegistered(string fileType)
{
try
{
KnownFileTypeInfo info = new KnownFileTypeInfo(fileType, false, false);
string keyPath = string.Format("{0}\\shell\\open\\command", info.MediaType);
string expectedOpenCommand = string.Format("\"{0}\" launch \"%L\"", info.LaunchPath);
using (RegistryKey key = Registry.ClassesRoot.OpenSubKey(keyPath))
{
if (key != null)
{
string openCommand = key.GetValue("") as string;
return(openCommand == expectedOpenCommand);
}
}
}
catch
{
}
return(false);
}
public static bool IsFileTypeRegistered(string fileType)
{
try
{
KnownFileTypeInfo info = new KnownFileTypeInfo(fileType, false, false);
string keyPath = string.Format("{0}\\shell\\open\\command", info.MediaType);
string expectedOpenCommand = string.Format("\"{0}\" launch \"%L\"", info.LaunchPath);
using (RegistryKey key = Registry.ClassesRoot.OpenSubKey(keyPath))
{
if (key != null)
{
string openCommand = key.GetValue("") as string;
return (openCommand == expectedOpenCommand);
}
}
}
catch
{
}
return false;
}
public static void UnregisterFileType(string fileType, bool unregMediaType)
{
KnownFileTypeInfo info = new KnownFileTypeInfo(fileType, true, true);
if (info.IsValid)
{
if (unregMediaType)
{
// ==== Unregister media type ====
using (RegistryKey mediaTypeKey = Registry.ClassesRoot.CreateSubKey(info.MediaType))
{
if (mediaTypeKey != null)
{
mediaTypeKey.SetValue("", "");
// ==== Unregister icon ====
using (RegistryKey defaultIconKey = mediaTypeKey.CreateSubKey("DefaultIcon"))
{
if (defaultIconKey != null)
{
defaultIconKey.SetValue("", "");
}
}
mediaTypeKey.DeleteSubKeyTree("shell", false);
}
}
}
}
}
public static void RegisterFileType(string fileType, bool regMediaType)
{
KnownFileTypeInfo info = new KnownFileTypeInfo(fileType, true, false);
if (info.IsValid)
{
if (regMediaType)
{
// ==== Register media type ====
using (RegistryKey mediaTypeKey = Registry.ClassesRoot.CreateSubKey(info.MediaType))
{
if (mediaTypeKey != null)
{
mediaTypeKey.SetValue("", info.MediaType);
}
// ==== Register icon ====
using (RegistryKey defaultIconKey = mediaTypeKey.CreateSubKey("DefaultIcon"))
{
if (defaultIconKey != null)
{
string newValue = string.Format(@"{0}\Resources\{1}.ico", AppConfig.InstallationPath, info.KnownFileType);
defaultIconKey.SetValue("", newValue);
}
}
if (File.Exists(info.LaunchPath))
{
using (RegistryKey shellKey = mediaTypeKey.CreateSubKey("shell"))
{
if (shellKey != null)
{
// ==== Change default action to OPEN ====
shellKey.SetValue("", "open");
// ==== Update OPEN action command ====
using (RegistryKey key = shellKey.CreateSubKey("open\\command"))
{
if (key != null)
{
key.SetValue("", string.Format("\"{0}\" launch \"%L\"", info.LaunchPath));
}
}
}
}
}
else
{
mediaTypeKey.DeleteSubKeyTree("shell", false);
}
}
}
}
}
