private static bool isAssociatedVista(string Extension)
{
try
{
bool res = false;
IApplicationAssociationRegistration aar;
if ((aar = new ApplicationAssociationRegistration() as IApplicationAssociationRegistration) != null)
{
aar.QueryAppIsDefault(Extension,
ASSOCIATIONTYPE.AT_FILEEXTENSION,
ASSOCIATIONLEVEL.AL_EFFECTIVE,
"QuuxPlayer",
ref res);
return(res);
}
else
{
return(false);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
return(false);
}
}
private static string associatedProgramVista(string Extension)
{
try
{
IApplicationAssociationRegistration aar;
if ((aar = new ApplicationAssociationRegistration() as IApplicationAssociationRegistration) != null)
{
StringBuilder progID = new StringBuilder();
Int32 result = aar.QueryCurrentDefault(Extension,
ASSOCIATIONTYPE.AT_FILEEXTENSION,
ASSOCIATIONLEVEL.AL_EFFECTIVE,
ref progID);
return(progID.ToString());
}
else
{
return(String.Empty);
}
}
catch
{
return(String.Empty);
}
}
private void GetDefaultBrowserProgId(out string defaultBrowserProgId)
{
try
{
// midl "C:\Program Files (x86)\Windows Kits\8.1\Include\um\ShObjIdl.idl"
// tlbimp ShObjIdl.tlb
var applicationAssociationRegistration = new ApplicationAssociationRegistration();
applicationAssociationRegistration.QueryCurrentDefault("http", ASSOCIATIONTYPE.AT_URLPROTOCOL, ASSOCIATIONLEVEL.AL_EFFECTIVE, out defaultBrowserProgId);
}
catch (COMException e)
{
defaultBrowserProgId = null;
ThrowTerminatingError(new ErrorRecord(e, e.Message, ErrorCategory.NotSpecified, "http"));
}
if (string.IsNullOrEmpty(defaultBrowserProgId))
ThrowTerminatingError(new ErrorRecord(new Exception("GetDefaultBrowserProgId"), "Unknown ProgID", ErrorCategory.NotSpecified, "http"));
}
private static void setAssociationVista(bool Associate, string ProgramID, string Extension)
{
try
{
IApplicationAssociationRegistration aar;
if ((aar = new ApplicationAssociationRegistration() as IApplicationAssociationRegistration) != null)
{
if (Associate)
{
string current = associatedProgramVista(Extension);
if (current != ProgramID && current != "QuuxPlayer")
{
RegistryKey root = HKCU_S_C;
RegistryKey k4 = GetRegKey(root, Extension, true);
k4.SetValue("QuuxBackup", current, RegistryValueKind.String);
}
aar.SetAppAsDefault("QuuxPlayer",
Extension,
ASSOCIATIONTYPE.AT_FILEEXTENSION);
}
else
{
RegistryKey root = HKCU_S_C;
RegistryKey k4 = GetRegKey(root, Extension, true);
string restore = GetRegValue(k4, "QuuxBackup");
if (restore.Length > 0)
{
aar.SetAppAsDefault(restore,
Extension,
ASSOCIATIONTYPE.AT_FILEEXTENSION);
}
}
}
}
catch
{
}
}
