Qt QJsonDocument::fromBinaryData() does not work

QJsonDocument::fromBinaryData is a static method. You need to write:

jdoc2 = QJsonDocument::fromBinaryData( ba );

c++ json qt qt5

fromBinaryData is a static function: your call does'nt affect jdoc2. Try the following instead:

QByteArray ba  = jdoc.toBinaryData();QJsonDocument jdoc2 = QJsonDocument::fromBinaryData(ba);

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