sComputeCrc16 (Function)

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sComputeCrc16 (Function)

In french: sCalculeCrc16

Checks a character string before and after transmission between WINDEV applications and WEBDEVsites.

This function is used to check whether a character string was properly transmitted between WINDEV applications and WEBDEV sites during transmissions with risk of information loss (modem for example). To do so, calculate the "Crc16" value before transmitting the string and check its value when receiving the string: the two values must be identical.

Versions 15 and later

This function is now available for the Java applications.

New in version 15

This function is now available for the Java applications.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

nCrcRead is int // Control character read
LineRead is string // String read
...
IF nCrcRead <> sComputeCrc16(LineRead) THEN
Info("Error while retrieving the string")
END

Syntax

<Result> = sComputeCrc16(<String>)

<Result>: Integer

Control value of the string.

<String>: Character string (with quotes)

Any character string.

Remarks

This function can return a different result in the WINDEV version. To improve the reusability to the code, we recommend that you use sComputeCrc32.

Business / UI classification : Neutral code

Component : wd250std.dll