commit 5a39b8897bbadb4b4e6da38a0cb557522bac3e1a
author Chris Liechti <cliechti@gmx.net> Tue May 03 22:10:39 2016 +0200
committer Chris Liechti <cliechti@gmx.net> Tue May 03 22:10:39 2016 +0200
tree 493813822e0c1dacac7be80e6f47670ca4ee2052
parent 2c278a867174337d26da3d0a9d26066698b0e0fd

win32: add methods to cancel read/write operation, use in close, fixes #51

serial/win32.py

diff --git a/serial/win32.py b/serial/win32.py
index 43caae1..cef5568 100644
--- a/serial/win32.py
+++ b/serial/win32.py
@@ -179,6 +179,10 @@
 WaitForSingleObject.restype = DWORD
 WaitForSingleObject.argtypes = [HANDLE, DWORD]
 
+CancelIoEx = _stdcall_libraries['kernel32'].CancelIoEx
+CancelIoEx.restype = BOOL
+CancelIoEx.argtypes = [HANDLE, LPOVERLAPPED]
+
 ONESTOPBIT = 0  # Variable c_int
 TWOSTOPBITS = 2  # Variable c_int
 ONE5STOPBITS = 1