Retrieve System Values (Magic xpa 3.x)
Note: Make sure the connection to IBM i is established before proceeding.
Use this function to retrieve an IBM i system value. The syntax of the UDP is
Invoke UDP ('MGEAC32.RTRVSYSVAL', A, B, C, D, E)
Where:
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A - A string variable, representing the system name.
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B - A string variable, representing an IBM i system value name, such as QCCSID or QCENTURY.
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C - A string variable representing a system value.
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D - A numeric variable representing a system value size.
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E - A numeric variable representing one of the following return codes, 0=successful or -1=Error.