Starts the negotiation process.

NegotiateError NNBeginNegotiation(

int cookie,

int clientindex,

NegotiateProgressFunc progresscallback,

NegotiateCompletedFunc completedcallback,

void * userdata );

Return Value

ne_noerror if successful; otherwise one of the ne_ error values. See Remarks for detail.

Parameters

cookie

[in] Shared cookie value that both players will use so that the NAT Negotiation Server can match them up.

clientindex

[in] One client must use clientindex 0, the other must use clientindex 1.

progresscallback

[in] Callback function that will be called as the state changes.

completedcallback

[in] Callback function that will be called when negotiation is complete.

userdata

[in] Pointer for your own use that will be passed into the callback functions.

Remarks

Possible errors that can be returned when starting a negotiation
ne_noerror: No error
ne_allocerrortrong>: Memory allocation failed
> ne_socketerror: Socket allocation failed
ne_dnserror: DNS lookup failed.