private static int GetDispIDForName(this IDispatchEx dispatchEx, string name, bool ensure, bool ignoreCase)
{
var flags = ignoreCase ? DispatchNameFlags.CaseInsensitive : DispatchNameFlags.CaseSensitive;
if (ensure)
{
flags |= DispatchNameFlags.Ensure;
}
var result = dispatchEx.GetDispID(name, flags, out var dispid);
if (ensure && (result == HResult.DISP_E_UNKNOWNNAME))
{
throw new NotSupportedException("The object does not support dynamic properties");
}
if (HResult.Succeeded(result))
{
return(dispid);
}
if (name.IsDispIDName(out dispid))
{
return(dispid);
}
var member = dispatchEx.GetMembers().FirstOrDefault(testMember => testMember.Name.Equals(name, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal));
if (member != null)
{
return(member.DispID);
}
throw new MissingMemberException(MiscHelpers.FormatInvariant("The object has no property named '{0}'", name));
}
public object GetProperty(string name, out bool isCacheable, params object[] args)
{
isCacheable = false;
DispatchMember member = null;
if (args.Length < 1)
{
// some objects crash on attempt to retrieve a method as a property
member = dispatchEx.GetMembers().FirstOrDefault(testMember => testMember.Name == name);
if ((member != null) && member.DispatchFlags == DispatchFlags.Method)
{
return(new HostMethod(hostItem, name));
}
}
try
{
var result = dispatchEx.GetProperty(name, false, args);
return(result);
}
catch (Exception)
{
if (args.Length < 1)
{
if (member == null)
{
member = dispatchEx.GetMembers().FirstOrDefault(testMember => testMember.Name == name);
}
if ((member != null) && !member.DispatchFlags.HasFlag(DispatchFlags.Method))
{
return(new HostIndexedProperty(hostItem, name));
}
return(new HostMethod(hostItem, name));
}
throw;
}
}
public static IEnumerable <string> GetPropertyNames(this IDispatchEx dispatchEx)
{
return(dispatchEx.GetMembers().Select(member => member.Name));
}
