SpiSendMsg - Parameters

hstream (HSTREAM) - input

The stream instance of the stream handler that will receive the message.

hid (HID) - input

ID of the stream handler to which the message should be sent.

ulMsgType (ULONG) - input

The stream-handler-specific message type.

SHC_REPORT_INT

pMsg is a pointer to MSG_REPORTINT.
SHC_REPORT_EVENT
pMsg is a pointer to MSG_REPORTEVENT.

pMsg (PVOID) - input

Pointer to a specific control block according to ulMsgType. The first field in the control block must be the length of the structure. See MSG_COMMON.

rc (ULONG) - returns

Return codes indicating success or the type of failure:

NO_ERROR

Success.
ERROR_INVALID_FUNCTION
Invalid function requested.
ERROR_INVALID_STREAM
Invalid stream handle.
FAILURE
Stream handler-specific error return code.

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