SpiEnumerateProtocols - Parameters

hid (HID) - input

ID (returned by SpiGetHandler) whose protocols are to be queried.

paSPCBKeys (PVOID) - in/out

Address of an array of SPCB keys to be filled in that identify the protocols supported by the specified stream handler.

pulNumSPCBKeys (PULONG) - in/out

Pointer to the number of entries on input. Upon return, contains the number actually returned. If more protocols are available than there are entries in the array, this function returns ERROR_INVALID_BUFFER_SIZE, and this parameter contains the number of array entries needed.

rc (ULONG) - returns

Return codes. Return codes indicating success or the type of failure:

NO_ERROR

Success.
ERROR_INVALID_FUNCTION
Invalid function requested.
ERROR_INVALID_HID
Invalid handler ID.
ERROR_INVALID_BUFFER_SIZE
Array passed is too small to hold all the SPCB keys. The size of the buffer needed is returned in pulNumSPCBKeys.
ERROR_INVALID_BLOCK
Invalid pointer.
FAILURE
Stream handler-specific error return code.

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