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- Reading a memory area
- Error
 Advertencia
A partir de la versión 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.
ResSeeek = MemSeek("MemZone", "M")
Sintaxis
<Result> = MemSeek(<Memory area> , <Search 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. <Search 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): the search is performed on the value added by function MemAdd or on the value modified by function MemModify.
- False The search is performed on the return value.
Observaciones 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.
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.
Clasificación Lógica de negocio / UI: Código neutro
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