src_gui_image_qpixmapfilter.cpp

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QPixmapColorizeFilter *myFilter = new QPixmapColorFilter;
myFilter->setColor(QColor(128, 0, 0));
myFilter->draw(painter, QPoint(0, 0), originalPixmap);
 
QPixmapConvolutionFilter *myFilter = new QPixmapConvolutionFilter;
qreal kernel[] = {
     0.0,-1.0, 0.0,
    -1.0, 5.0,-1.0,
     0.0,-1.0, 0.0
    };
myFilter->setConvolutionKernel(kernel, 3, 3);
myFilter->draw(painter, QPoint(0, 0), originalPixmap);
 
QPixmapDropShadowFilter *myFilter = new QPixmapDropShadowFilter;
myFilter->draw(painter, QPoint(0, 0), originalPixmap);