How to print current pixel of an QImage?-CodePudding

I have an RGB888 format qImage defined as follows:

int sizeX = 300; int sizeY = 300;
QImage img = QImage(sizeX, sizeY, QImage::Format_RGB888);

I wish to print current pixel of img one by one. So, I followed the example here:`

 for(int i=0; i<sizeX; i  ){
 for(int j=0; j<sizeY; j  ){
       img.setPixel(i, j, qRgb(rand()%6, rand()%6, rand()%6));
    }
}
QGraphicsScene *graphic = new QGraphicsScene(this);
graphic->addPixmap(QPixmap::fromImage(img));
ui->graphicsView->setScene(graphic);

But it prints the whole QImage. I want to print one by one. Thanks. Best regards.

CodePudding user response：

As JarMan commented, you are looking for "animation".

Drawing pixel by pixel, and updating the UI for every pixel, may use animation solution as described in the