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TIBCO Rendezvous® 8.8.0

# Add Opaque Byte Sequence

Convenience Function

## Declaration

    tibrv_status tibrvMsg_AddOpaque(
       tibrvMsg       message,
       const char*    fieldName,
       const void*    value,
       tibrv_u32      size);
    tibrv_status tibrvMsg_AddOpaqueEx(
       tibrvMsg       message,
       const char*    fieldName,
       const void*    value,
       tibrv_u32      size,
       tibrv_u16      fieldId);

## Purpose

Add a field containing an opaque byte sequence.

Parameter | Description
`message` | Add the new field to this message.
`fieldName` | Create the new field with this name.
`value` | Add a new field that contains this opaque buffer. The function copies the data into the new message field.
`size` | When adding an opaque buffer, the program supplies the size (in bytes) of the data in this parameter.
`fieldId` | Create the new field with this identifier. Zero is a special value that signifies no field identifier. All non-zero field identifiers must be unique within each message. It is illegal to add a field that has both a `NULL` field name, and a non-zero field identifier.

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