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  • Existence of memory zone
  • Sorting the elements
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Stored procedures
Warning
From version 20, this feature is kept for backward compatibility. We recommend that you use the Associative arrays.
Modifies an element in a memory zone.
Versions 18 and later
WINDEV This function is now available in Windows Store apps mode.
New in version 18
WINDEV This function is now available in Windows Store apps mode.
WINDEV This function is now available in Windows Store apps mode.
Versions 22 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 22
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Resets to 0 all the values greater than 100
// in "MyMemoryZone"
FOR Subscript = 1 _TO_ MemCount("MyMemoryZone")
ResValue = MemRetrieve("MyMemoryZone", Subscript)
IF ResValue > 100 THEN MemModify("MyMemoryZone", 0, 0, Subscript)
END
Syntax
MemModify(<Name of Memory Zone> , <Modified Value> , <Return Value> , <Subscript>)
<Name of Memory Zone>: Character string (with quotes)
Name of the memory zone, defined by MemCreate.
<Modified Value>: Character string, integer or real
Value that is modified in the memory zone. This value corresponds to the sort argument used by MemSort. This value is returned by MemKeyVal.
<Return Value>: Character string
Value returned by MemRetrieve or MemSetPosition.
<Subscript>: Integer
Subscript of element to modify. The subscript of an element is returned by MemCurrent or MemSeek.
Remarks

Existence of memory zone

The existence of the memory zone is not checked.
If <Name of Memory Zone> does not exist, a WLanguage error occurs when MemModify is run.
To check the existence of a memory zone, use MemExist.

Sorting the elements

The element modified in the memory zone is not sorted. You must use MemSort to sort the entire memory zone.
Component : wd250std.dll
Minimum version required
  • Version 9
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