QT + ZBar read barcode from jpg/pdf

jacekkozik

Hi, I have a problem with ZBAR. Please help.
I would like to read the code from a jpg / pdf file and assign it to a variable. Can someone show me a simple example?

Today I downloaded and unzipped ZBAR. I added "zbar.h" and the ZBAR folder to the project.

Please help.

luca

Don't know if can help but some time ago I used QZxing.
I suggest you to try. There are also a lot of example.

You ca also read this: https://www.kdab.com/efficient-barcode-scanning-qzxing/

jacekkozik

Thanks, I was successful with JPG / PNG

https://github.com/ftylitak/qzxing

Copy source code folder of QZXing to the root of your project. Add the following line to your .pro file. For more information see here.

include(QZXing/QZXing.pri)

#include <QZXing.h>

int main() 
{
	QImage imageToDecode("file.png");
	QZXing decoder;
	decoder.setDecoder( QZXing::DecoderFormat_QR_CODE | QZXing::DecoderFormat_EAN_13 );
	QString result = decoder.decodeImage(imageToDecode);
}

But I have a problem with PDF. Is there a simple method? Do I need to convert pdf pages to image.

luca

@jacekkozik said in QT + ZBar read barcode from jpg/pdf:

But I have a problem with PDF. Is there a simple method? Do I need to convert pdf pages to image.

I think you should convert it to QImage and parse it.

damianleee

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