private static IEnumerable <DispatchMember> GetMembersRaw(this IDispatchEx dispatchEx)
{
var isEnumerable = false;
int dispid;
var result = dispatchEx.GetNextDispID(DispatchEnumFlags.All, SpecialDispIDs.StartEnum, out dispid);
while (result == HResult.S_OK)
{
string name;
if (HResult.Succeeded(dispatchEx.GetMemberName(dispid, out name)))
{
DispatchPropFlags flags;
if (HResult.Succeeded(dispatchEx.GetMemberProperties(dispid, DispatchPropFlags.CanAll, out flags)))
{
if (dispid == SpecialDispIDs.NewEnum)
{
isEnumerable = true;
}
yield return(new DispatchMember(name, dispid, flags));
}
}
result = dispatchEx.GetNextDispID(DispatchEnumFlags.All, dispid, out dispid);
}
if (isEnumerable)
{
yield return(new DispatchMember("GetEnumerator", SpecialDispIDs.GetEnumerator, DispatchPropFlags.CanCall));
}
}
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 static ITypeInfo GetTypeInfo(this IDispatch dispatch)
{
uint count;
if (HResult.Succeeded(dispatch.GetTypeInfoCount(out count)) && (count > 0))
{
ITypeInfo typeInfo;
if (HResult.Succeeded(dispatch.GetTypeInfo(0, 0, out typeInfo)))
{
return(typeInfo);
}
}
return(null);
}
private static int GetDispIDForName(this IDispatch dispatch, string name)
{
var dispids = new int[1];
var names = new[] { name };
if (HResult.Succeeded(dispatch.GetIDsOfNames(ref iid, names, 1, 0, dispids)))
{
return(dispids[0]);
}
if (name.IsDispIDName(out dispids[0]))
{
return(dispids[0]);
}
var member = dispatch.GetMembers().FirstOrDefault(testMember => testMember.Name == name);
if (member == null)
{
throw new MissingMemberException(MiscHelpers.FormatInvariant("The object has no property named '{0}'", name));
}
return(member.DispID);
}