You Can Only Retrieve Parameters Once
GETPARAM can only retrieve a parameter (positional, keyword, or value) once.
For example, the following GETPARAM calls retrieve parameters from the client:
foo = GETPARAM(client_data, 'foo')
bar = GETPARAM(client_data, /All)
However, after the foo parameter is retrieved, it cannot be retrieved again in the subsequent call with the /All keyword. Therefore, in this case, the bar command string will not contain the foo parameter.
note | You can use the Ignore_Used keyword with GETPARAM to request that all requested parameters will be returned whether they have been used or not. |
