[Interest] Painting with QPainter to QPixmap in C++ method invoked from QML

Igor Mironchik igor.mironchik at gmail.com
Wed Sep 12 09:40:08 CEST 2018


Hello.

Let's say I have C++ code to draw to QPixmap with QPainter.

This code returns data:image/png;base64,... string that can be used in QML.

But when I invoke this method from QML I've got

QPainter::begin: Paint device returned engine == 0, type: 2

So my question is how can I draw with QPainter in back-end from QML?




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