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Help / WLanguage / WLanguage functions / Standard functions / Memory area functions
  • Existence of memory area
  • Positioning in the 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.
Retrieves the return value of an element found in a memory zone.
Example
// Retrieve the return value of element 7
// found in "MyMemoryZone"
ResRetrieve = MemRetrieve("MyMemoryZone", 7)
Syntax
<Result> = MemRetrieve(<Memory area> , <Index>)
<Result>: Character string
  • Return value of the specified element (defined by MemAdd or MemModify),
  • Empty string ("") if the specified element was not found.
<Memory area>: Character string
Name of the memory area, defined by MemCreate.
<Index>: Integer
Index of the element to use. The index of an element is returned by MemCurrent or MemSeek.
Remarks

Existence of memory area

The existence of the memory zone is not checked.
If the specified memory area does not exist, a WLanguage error occurs when MemRetrieve is used.
To check the existence of a memory area, use MemExist.

Positioning in the memory area

MemRetrieve does not set the position on the element used. To set the position on the <Index> element, use MemSetPosition.
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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