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9.111 GET_SYSVAR_LIST
| Note |
|---|
| Note: Built-In Function Rules Usage Options |
Retrieves a list of system variables, their descriptions, programs and program types and returns them to the calling RDML function in a variable length working list.
This is a Specialized Built-In Function for use in a Development Environment only.
Arguments
No | Type | Req/ Opt | Description | Min Len | Max Len | Min Dec | Max Dec |
|---|---|---|---|---|---|---|---|
1 | A | Req | Positioning system variable. The returned list starts with the first system variable whose name is greater than the value passed in this argument. | 1 | 20 |
Return Values
No | Type | Req/ Opt | Description | Min Len | Max Len | Min Dec | Max Dec |
|---|---|---|---|---|---|---|---|
1 | L | Req | Working list to contain system variable information. List must not be more than: The calling RDML function must provide a working list with an aggregate entry length of exactly 80 bytes. Each returned list entry is formatted as follows: From - To Description 1 - 20 System variable name 71 - 73 Program type 74 - 80 << for future expansion >> | 80 | 80 | ||
2 | A | Opt | Last system variable in list. Typically this value is used as the positioning argument on subsequent calls to this Built-In Function. | 1 | 20 | ||
3 | A | Opt | Return code. OK = list returned partially or completely filled with system variable details. No more system variables exist beyond those returned in the list. OV = list returned completely filled, but more system variables than could fit in the list exist. Typically used to indicate "more" system variables in page at a time style list displays NR = list was returned empty. Last system variable in the list is returned as blanks. | 2 | 2 |
Example
A user wants to print a list of all system variables.
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