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  • Existence of a matrix in memory
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Stored procedures
Checks the existence of a matrix in memory.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
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.
// Checks the matrix existence
ResExist = MatExist("MyMatrix")
Syntax
<Result> = MatExist(<Matrix>)
<Result>: Boolean
  • True if the matrix exists in memory,
  • False otherwise. To find out the error details, use ErrorInfo associated with the errMessage constant.
<Matrix>: Character string (with quotes)
Name of the matrix to check, defined by MatCreate.
Remarks

Existence of a matrix in memory

A matrix can be created:
A matrix can be deleted:
Business / UI classification : Neutral code
Component : wd250mat.dll
Minimum version required
  • Version 9
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