public IntPtr MarshalManagedToNative(object ManagedObj)
{
if (!(ManagedObj is string s))
{
throw new InvalidCastException();
}
var sr = new STRRET {
uType = STRRET_TYPE.STRRET_WSTR
};
sr.pOleStr.Assign(s);
return(sr.StructureToPtr(Marshal.AllocCoTaskMem, out var _));
}
