File.ComputeCRC Function

Reads a file and computes the Cyclic Redundancy Check (CRC) value for all the data in the file.

<integer_variable>= File.ComputeCRC ( path )

Prerequisites

None

Parameters

path

A required String expression that contains the path to the file that is to be read.

Remarks

This function permits a GPL program to detect if a file has been changed or corrupted by computing the CRC based on all the data in the file. If the CRC value is the same as a value that was previously computed for a file, it is highly unlikely that the file data is corrupted or has been modified.

Examples

Dim crc As Integer
crc = File.ComputeCRC(path)
Console.Writeline("Computed CRC is " & Hex(crc))