RE: Cancelling a thread

This is the same bug that Robert pointed out on your previous post.

It has to do with the usage thread-pointer not being mapped correctly to a .NET IntPtr data type which is required under the covers.

If you change the call so that it uses an IntPtr it should work OK.

        01 sub-handle       usage thread-pointer.

        01  IntPtr type System.IntPtr.

              set IntPtr to sub-handle as type System.IntPtr

              call 'CBL_THREAD_IDDATA_GET' using sub-iddata-ptr

                                by value IntPtr

             ...