qt学习

Posted 2020-11-20 confusion

在一个标签上显示一张矢量像素图片　　



　　 //The QImageReader class provides a format independent interface for reading images from files or other devices.
       //Constructs a QImageReader object with the device device and the image format format.
       QImageReader reader(&buffer,"JPG");
       QImage img = reader.read();