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Revision as of 21:49, 16 September 2009 by Daveoh (talk | contribs) (Calculations: although it's not a length limit, it's still a limit. Added text to show it's a value limit)

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Warning: Not all of these values are updated for mIRC v6.32 and above. Sections which remain to be confirmed are marked with (Untested)

This page explains various limits imposed by mIRC, however this may not be a complete list. The length is measured in bytes (equivalent to ASCII characters, including spaces.)

You can find the original limits page here.


NameLengthWhen exceededDescription
Global limits
Line Length Limit
4150Truncated or errorTo be precise: 4150 for evaluation results, 4151 for command lines (excluding command prefixes.)
(local or global)
4150UnsetThis limit includes the variable's name. Example: using "%a" as a name uses 3 bytes (2 for the name and 1 for a space.)
This means that for every extra character in the variable name, the maximum length of the value is reduced.
Note: the /set command further reduces the length limit to 4144 due to the 4 characters used by "set ". (LLL)
CalculationsMax value:
InaccurateCalculations past this number will generally be incorrect. Only the first 15 numbers of the result will be accurately calculated.
IRC server related
Incoming lines601Truncated(Untested) Excludes CR/LF.
Outgoing linesLLLTruncated
Joined channel names255Parted immediatelyIncludes channel prefix.
Channel keys256Truncated
Addresses90Truncated(Untested) The part of the full address after the "!"; only with JOIN/QUIT messages, addresses from WHO replies are not truncated.
Server passwords50Truncated(Untested) As associated with server entries
Incoming PING argument24No reply sent(Untested) First character must be a digit; leading spaces ignored.
Socket name255Error
Send buffer16384ErrormIRC's own buffers, not WinSock's.
Receive buffer4096Receipt stallsmIRC's own buffers, not WinSock's.
Socket markLLLNot 512 as the helpfile says.
Hashtable name256Truncated
Hashtable size10000ErrorIn number of buckets
Edit box1024SentEdit box is cleared afterwards, similar to pressing Enter.
Dialog name256Truncated
Input dialog text field1023Truncated
Edit box30000Truncated
Line of text4149SplitExcluding CR/LF. Applies to all file-related commands/identifiers.