![]() ' Params : dblPercentage Percent of completion between 0 and 1ĭebug. You could show the information on a form as text or display a graphic. ' Comments: This procedure captures the Progress Event and reveals the percentage completion for the file that's being compressed ' This example puts the information on the Immediate Window. Private Sub mclsCRC16_Progress(dblPercentage As Double) MsgBox "Ascii String CRC Value: " & intCRCValue IntCRCValue = mclsCRC16.GetCRCFromStringAscii(strString) MsgBox "String CRC Value: " & intCRCValue IntCRCValue = mclsCRC16.GetCRCFromString(strString) StrString = "One small step for man one giant leap for mankind" ' Example of creating a 16-bit CRC value for a string MclsCRC16.InputFileName = mcstrSamplePath & "\sample.mdb" ' Example of creating a 16-bit CRC value for a file ' Comments: Examples of converting files and strings to a 16-bit Cyclic Redundancy Check (CRC) value can also be used for Checksum If you don't want to capture the Progress event, you can use a regular module. I've created a function to calculate a CRC-16/MCRF4XX checksum, but it doesn't seem to be outputting the correct values. ' To use events, this module must be a class or form/report. ' By defining the class WithEvents, you can capture the Progress event to display information to your user. Private Const mcstrSamplePath As String = "C:\TVSBSamp" Run the form ' This example assumes that the sample files are located in the folder named by the following constant. Paste all the code from this example to the new form's module. Create a command button named 'cmdTest' ' 3. ' Example of CCRC16 to calculate the 16-bit CRC of a file or string ' ' To try this example, do the following: ' 1. TheĪlternative to using a file buffer is reading a byte at a time from the file.Ĭalculate the new CRC based on the current CRC, and the byte value. Read the specified number of bytes from the file which significantly increases the speed of processing files. Perform an unsigned conversion from a long value to an integer value. This is more efficient than calculating CRC's each time they are needed. ![]() For the Unicode version, use GetCRCFromString.įill the CRC table with precalculated values. Generate a CRC for a string using the ASCII version of this method. Alat terkait lainnya: Komputer Adler32 Checksum. For an ASCII version, see GetCRCFromStringAscii. Alat sederhana ini akan menghitung checksum CRC32 dari sebuah string. Generate a CRC for a string using the Unicode version of this method. Generate a CRC for the file specified in the InputFile property. Declarations and private variables for the CCRC16 class.
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