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18.3.1.3. RXSUBCOM QUERY
RXSUBCOM QUERY checks the existence of a subcommand handler. The query result is returned.
Parameters:
envname
The name of the subcommand handler.
dllname
The name of the dynamic-link file containing the subcommand handler routine.
Return codes:
0
The subcommand handler is registered.
30
The subcommand handler is not registered.
-1
A parameter is missing or specified incorrectly.
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18.3.1.2. RXSUBCOM DROP
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18.3.1.4. RXSUBCOM LOAD
