Initializing help system before first use

XpressProblem.CallbackAPI.MessageCallback Delegate

message callback

Namespace:  Optimizer.Objects
Assembly: xprsdn (in xprsdn.dll) Version: 47.01.01+0ba4e76731516b80760698bbaa939494dae84e49
Syntax
C# 
public delegate void MessageCallback(
	XpressProblem cbprob,
	string msg,
	int msglen,
	int msgtype
)

Parameters

cbprob   XpressProblem
The problem passed to the callback function.
msg   String
A null terminated character array (string) containing the message, which may simply be a new line. The total number of bytes (including NUL terminator) will not exceed XPRS_MAXMESSAGELENGTH./// If a message needs to be truncated to meet this limit, the last four bytes in msg are set to "...\0".
msglen   Int32
The length of the message string, excluding the null terminator.
msgtype   Int32
Indicates the type of output message:///
  • 1: information messages;
    • ///
  • 2: (not used);
    • ///
  • 3: warning messages;
    • ///
  • 4: error messages.
A negative value indicates that the Optimizer is about to finish and the buffers should be flushed at this time if the output is being redirected to a file.
Remarks
More details about the message callbacks can be found in the documentation of the corresponding C callback.
See Also
Parent Topic Optimizer.Objects

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