Specifications

Appendix E Display Cluster Protocol 271
Error Sent when any error occurs, either as a direct result of a command, or for any
other reason.
Operating System Error Indicates a generic operating system error from the host’s OS. Under
Windows, this is a HRESULT that indicates failure, with the error code included
as the second parameter (possibly decoded into an error message string). The
third parameter may provide additional information.
QuickTime Error Similar to the Operating System Error, but originating from QuickTime. This is
treated separately from the OS errors since the QT errors use MacOS style
error codes even under Windows. This kind of error typically originates from
still image files, or from video files as they are opened or played. The third
parameter generally contains the name of the offending media file.
Feedback Parameter Description
<uint> Error kind:
1 Operating system error (for instance, a Win32 HRESULT).
2 QuickTime error (Mac OSErr style).
3 Rendering API error (that is, DirectX).
4 Network errors (that is, WinSock).
5 File server error (for example, file not found during download).
6 Syntax/parser error (for instance, when loading a specification file).
7 General runtime error – described by string.
8 Authentication error.
<int> or <string> Error number or description string. May be zero.
<string> Excuse or explanation, may be empty string.
[<string>] Address of originator (empty or omitted if originating from the master).