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<== Date ==> | <== Thread ==> |
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Subject: | stream device user variables |
From: | Al Honey <[email protected]> |
To: | "'[email protected]'" <[email protected]> |
Date: | Tue, 7 Mar 2017 21:57:21 +0000 |
Hi Just wondering if there is a mechanism for modifying the values of stream protocol user variables. ‘param’ is the user variable whose value I am attempting to alter. param = "0"; getString { out "string? " $param; in "%s"; } The following do not affect the user variable ‘param’, declared above: paramE { $param = "1"; out "NOP " $param; This actually is always “0” } paramD { $param = "0"; out "NOP " $param; } The following work, in a sense, in that the param variable changes, but it’s scope appears to be within the specific protocol function, that is, the ‘global’ variable at the top is not affected. PE { param = "1"; out "NOP " $param; This does have the value “1” } PD { param = "0"; out "NOP " $param; } Also, it seems that an ‘out’ and/or ‘in’ statement is always necessary (errors occur otherwise), indicating that a protocol to simply change a user variable is not possible. Thanks, Al |