2.2.4.3 Change Participant Control Level PDU (OD_PARTICIPANT_CTRL_CHANGE)
The Change Participant Control Level PDU (OD_PARTICIPANT_CTRL_CHANGE) is sent by a participant to request a different control level. For instance, a view-only participant could ask the sharing manager to change its control level so that it can view and interact with shared content (section 3.3.5.2.3).
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HDR |
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ParticipantId |
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HDR (4 bytes): The common PDU header (as specified in Common Order Header (section 2.2.1)). The Type field of the common PDU header MUST be set to ODTYPE_PARTICIPANT_CTRL_CHANGE (0x0009).
Flags (2 bytes): A 16-bit, unsigned integer that represents a set of bit flags, in little-endian format, that indicate participant requests for permission. A bit is true (or set) if its value is 1. This field MUST be composed of the bitwise OR of one or more of the following values.
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Value
Meaning
REQUEST_VIEW
0x0001
The participant is requesting view permission.
REQUEST_INTERACT
0x0002
The participant is requesting interact permission.
ALLOW_CONTROL_REQUESTS
0x0008
The participant is requesting that "permission request" be allowed.
ParticipantId (4 bytes): A 32-bit, unsigned integer that specifies the unique identifier of the participant.