[python-win32] ctypes and python dll callbacks
le dahut
le.dahut at laposte.net
Mon Jan 21 17:04:56 CET 2008
Hello,
I'm trying to use RegisterServiceCtrlHandlerEx. Since it isn't available
in pywin32, I have to call it from advapi32.dll using ctypes.
RegisterServiceCtrlHandlerEx is useful to replace winlogon notification
package to get informations about login/logoff events. I could use SENS
in a com server but I have already an NT service running a twisted
PerspectiveBroker server.
A handler to a callback function must be passed to
RegisterServiceCtrlHandlerEx. How can a python callback function handler
be created to be passed to a ctypes DLL function ?
advapi32 = ctypes.oledll.LoadLibrary('Advapi32.dll')
RegisterServiceCtrlHandlerEx = advapi32.RegisterServiceCtrlHandlerExW
RegisterServiceCtrlHandlerEx(svc_name, myPyFunc, svc_name)
returns :
<class 'ctypes.ArgumentError'>: argument 2: <type
'exceptions.TypeError'>: Don't know how to convert parameter 2
Any idea ?
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