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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 15 and later
Android This function is now available for Android applications.
New in version 15
Android This function is now available for Android applications.
Android This function is now available for Android applications.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 18 and later
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Android Widget This function is now available in Android Widget 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 Name>)
<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 Name>: Character string
Name of matrix to check, defined by MatCreate.
Remarks

Existence of a matrix in memory

A matrix can be created:
A matrix can be deleted:
Component : wd240mat.dll
Minimum version required
  • Version 9
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