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  • Reading a memory area
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Stored procedures
Warning
From version 20, this feature is kept for backward compatibility. We recommend that you use Associative arrays.
Seeks an element in a memory area:
  • on the value added by MemAdd or on the value modified by MemModify,
  • on the return value.
Remark: This search is an exact-match search.
// Seeks the first value equal to "M" in the "MemZone" memory area
ResSeeek = MemSeek("MemZone", "M")
Syntax
<Result> = MemSeek(<Memory area> , <Sought value> [, <Element>])
<Result>: Any type
  • If <Element> is set to True (by default):
    • Value of the first element found,
    • Empty string ("") if no element was found.
  • If <Element> is set to False:
    • Index of the first element found,
    • -1 if no element was found.
<Memory area>: Character string
Name of the memory area, defined by MemCreate.
<Sought value>: Character string
Value sought in the memory area. When the search is performed on the added value, this value and the value added by MemAdd must have the same type.
<Element>: Optional boolean
  • True (default value): the search is performed on the value added by MemAdd or on the value modified by MemModify.
  • False: the search is performed according to the return value.
Remarks

Reading a memory area

MemSeek is used to start reading the memory area.
After the call to MemSeek:
  • MemNext will be positioned on the next element sought.
  • MemPrevious will be positioned on the previous element sought.
To resume a standard iteration, you must use MemFirst or MemLast.

Error

A WLanguage error is generated when MemSeek is executed:
  • if <Memory area> does not exist. To check the existence of a memory area, use MemExist.
  • if <Memory area> was not sorted beforehand. To sort a memory area, use MemSort.
Business / UI classification: Neutral code
Component: wd290std.dll
Minimum version required
  • Version 9
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Last update: 05/26/2022

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