public unsafe static ITypeInfo GetTypeInfoByName(this ITypeLib typeLib, string typeName)
{
// The find method is case insensitive, and will overwrite the input buffer
// with the actual found casing.
char * nameBuffer = stackalloc char[typeName.Length + 1];
Span <char> nameSpan = new Span <char>(nameBuffer, typeName.Length);
typeName.AsSpan().CopyTo(nameSpan);
nameBuffer[typeName.Length] = '\0';
IntPtr * typeInfos = stackalloc IntPtr[1];
MemberId *memberIds = stackalloc MemberId[1];
ushort found = 1;
typeLib.FindName(
nameBuffer,
lHashVal: 0,
typeInfos,
memberIds,
&found).ThrowIfFailed(typeName);
return((ITypeInfo)Marshal.GetTypedObjectForIUnknown(typeInfos[0], typeof(ITypeInfo)));
}