Wolfgang Walter <w...@stwm.de> wrote: > > WaitCommEvent always returns FALSE when device is opened in overlapped mode. > > Not according to MSN documentation of WaitCommEvent(): > > "If the overlapped operation cannot be completed immediately, the function > returns FALSE and the GetLastError function returns ERROR_IO_PENDING, > indicating that the operation is executing in the background."
We have the tests for that, MSDN descriptions are proved to be often incorrect or incomplete. -- Dmitry.
