CF_Generate_QR_Barcode ( Text ; Size ; Encoding )

Converts a string into a QR code using the Google API

Average rating: 4.6 (27 votes) Log in to vote

Patrick Weh
Sansibar
http://www.sansibar.de

Sample input:

CF_Generate_QR_Barcode ( "just a test" ; 500 ; "UTF-8" )

Sample output:

A png showing the text as QR Code

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

//  © 05.04.2012  Sansibar Sylt | Patrick Weh
// Function for generating a QR Barcode.
//
// Returns the path to the PNG file.

Let (
	[
		// Set the temporary Path and a random filename
		TmpPfad = "/Volumes" & Get ( TemporaryPath ) & Int ( Random * 10000000 ) & ".png" ;

		URL = Text ;

		// Check if the size is usable.
		SizeP = If ( IsEmpty ( Size ) or Size > 500 ; 500 ; Size ) ;

		// Check if the encoding is usable.
		Code = If ( IsEmpty ( Encoding ) or PatternCount ( Encoding ; "UTF-8¶Shift_JIS¶ISO-8859-1" ) = 0 ; "UTF-8" ; Encoding)
	] ;

	// Without text no QR Code possible.
	If ( not IsEmpty ( URL ) ;

		// Generate QR Code.
		TrFile_ExecuteShell ( "-unused" ; "curl \"https://chart.googleapis.com/chart?cht=qr&chs=" & SizeP & "x" & SizeP & "&chl=" & URL & "&choe=" & Code & "\" -o \"" & TmpPfad & "\"" ) & 

		// Return path to file.
		"imagemac:" & Substitute ( TmpPfad ; "/Volumes" ; "" )
	;
		""
	)

)

Troi File Plugin 5.0 or higher is Required to do the shell but you can also change it to work with applescript or any other plugin that can execute shell commands.

The function is using the Google Chart Api.
Description can be found here: https://developers.google.com/chart/infographics/docs/qr_codes

The image can be inserted into a container by using

Go to Field [ Conatiner ]
Set Variable [ $Return_of_CF ; CF_Generate_QR_Barcode ( "Example" ; 500 ; "UTF-8" ) ]
Insert Picture [ $Return_of_CF ]

Working on Mac only, sorry for that ;)

Comments

		Peter, Zurich Jun 26, 2018
Troi File Plugin 5.0 or higher is Required to do the shell but you can also change it to work with applescript or any other plugin that can execute shell commands. The function is using the Google Chart Api. Description can be found here: https://developers.google.com/chart/infographics/docs/qr_codes The image can be inserted into a container by using

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

CF_Generate_QR_Barcode ( Text ; Size ; Encoding )

Comments

Support this website.

Support this website.