Do I have to call any snmp related api before calling SnmpMgrTrapListen

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From: "Kun Niu" <haoniukun@xxxxxxxxxxx>
Date: Sun, 29 Apr 2007 01:23:05 +0800

Dear all,
I'm trying to implement a snmp trap listen deamon.
I copied the example from platform sdk.
But the api failed at the very beginning when I'm calling
SnmpMgrTrapListen(&hNewTraps).
The return error code is 42.
Do I have to call any Winsock related api before calling SnmpMgrTrapListen?
The document doesn't mention it.

Any help would be appreicated and thanks in advance.

.

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