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Stored procedures
Writes the value of a variable for the MATLAB session.
Example
gnSessionID is int
gnSessionID = mlInitialize()
 
IF gnSessionID = -1 THEN
Error(ErrorInfo(errFullDetails))
END
 
// Code of BTN_Create_Variables button
aParameter is array of 1 real = [4]
aResult is array of 1 by 1 real = [[123]]
 
IF NOT mlSetVariable(gnSessionID, "i", aParameter) THEN
Error("Failure writing the variable")
RETURN
END
 
sCodeToRun is string = "myRoot = sqrt(i)"
EDT_Result = mlExecute(gnSessionID, sCodeToRun)
 
aResult = mlGetVariable(gnSessionID, "myRoot")
IF ErrorOccurred THEN
Trace("Error: " + ErrorInfo())
END
 
Trace("Root = " + aResult[1,1])
 
Trace("List of variables before deletion: " + mlListVariable(gnSessionID))
 
mlDeleteVariable(gnSessionID, "i")
mlDeleteVariable(gnSessionID, "myRoot")
 
Trace("List of variables after deletion: " + mlListVariable(gnSessionID))
Syntax
<Result> = mlSetVariable(<Session identifier> , <Variable name> , <Value>)
<Result>: Boolean
  • True if the variable was modified,
  • False otherwise. If an error occurs, the ErrorOccurred variable is set to True. To get the details of the error, use ErrorInfo with the errMessage constant.
<Session identifier>: Integer
Identifier of MATLAB session. This identifier is returned by mlInitialize.
<Variable name>: Character string
Name of the variable to write.
<Value>: Array of integers, reals, ...
Value of variable.
Remarks

Supported types

The supported types are:
  • signed and unsigned integers on 1, 2, 4 and 8,
  • reals on 4 and 8,
  • booleans,
  • characters.
Component: wd290com.dll
Minimum version required
  • Version 20
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Last update: 05/26/2022

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