[Pyrex] Overlapped I/O
Greg Ewing
greg at cosc.canterbury.ac.nz
Tue Jun 24 02:56:38 CEST 2003
> I am trying to make a DLL accessible to python using Pyrex, but I've
> run in= to a problem with overlapped I/O. Do you have any suggestions
> on how to declare the following in Pyrex?
If the problem is because of the nested union/struct, you'll
have to separate them out and give them explicit type names,
e.g.
cdef extern from "relevantheader.h":
cdef struct _OffsetStruct:
DWORD Offset
DWORD OffsetHigh
cdef union _OffsetUnion:
_OffsetStruct off
PVOID Pointer
ctypedef struct OVERLAPPED:
ULONG_PTR Internal
ULONG_PTR InternalHigh
_OffsetUnion u
HANDLE hEvent
ctypedef OVERLAPPED *LPOVERLAPPED
Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury, | A citizen of NewZealandCorp, a |
Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. |
greg at cosc.canterbury.ac.nz +--------------------------------------+
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