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SetCallbackHandler.md

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SetCallbackHandler function

Sets the application context and callback function pointer for the API object.

Syntax

typedef
_IRQL_requires_max_(DISPATCH_LEVEL)
void
(QUIC_API * QUIC_SET_CALLBACK_HANDLER_FN)(
    _In_ _Pre_defensive_ HQUIC Handle,
    _In_ void* Handler,
    _In_opt_ void* Context
    );

Parameters

Handle

The valid handle to any API object that uses callback handlers. This includes handles to listener, connection and stream objects.

Handler

A new application callback handler to register with the API object.

Context

A new application context to register with the API object.

Remarks

This function allows the app to set the application callback handler and context for the API object. The context can be later retrieved by a call to GetContext. It is also passed into all callback handler events for the object.

Important There is no internal synchronization for this callback handler or context. If the app calls GetContext, SetContext and/or SetCallbackHandler on different threads, it must provide for the necessary synchronization mechanisms.

See Also

GetContext
SetContext