#include#include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QPixmap image; bool success = image.load("image.png"); if (success) { QLabel label; label.setPixmap(image); label.show(); } else { QMessageBox::warning(nullptr, "Error", "Failed to load image."); } return app.exec(); }
#includeThis example loads an image from a QByteArray object containing image data. It uses the loadFromData() function of QPixmap to load the image. If the loading operation fails, a warning message is displayed. Package library: Qt GUI library#include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QByteArray imageData; // Contains image data // ... QPixmap image; bool success = image.loadFromData(imageData); if (success) { QLabel label; label.setPixmap(image); label.show(); } else { QMessageBox::warning(nullptr, "Error", "Failed to load image."); } return app.exec(); }