Windows and RT Handles

An NTXHANDLE sent to the INtime kernel via an object mailbox is converted to an RTHANDLE in transit by the NTX DLL, and vice-versa; the same applies to using a handle in connection with an object directory.
 
If a handle is passed to a Windows thread from an RT thread in another way (such as via a data mailbox), it must be converted by ntxImportRtHandle.
 
Note: for historic reasons, you can spell the function names with …Handle.. and ..handle… For consistency, you should use the …Handle… names.