QT:使用缩放调整 QImage 的大小

Question

尝试调整图像大小:

size_t targetWidth = funnyImage.get_width();
size_t targetHeight = funnyImage.get_height();
QString inputWidth = 400;
QString inputHeight = 900;

QImage *jpgImage = new QImage(targetWidth, targetHeight, QImage::Format_RGB32);

QImage small = jpgImage->scaled(inputWidth, inputHeight,Qt::KeepAspectRatio);

我收到这个错误:

cpp:125: 错误:没有匹配函数来调用 'QImage::scaled(QString&, QString&, Qt::AspectRatioMode)'

SOLUTION: QImage small = jpgImage->scaled(inputWidth.toUInt(), inputHeight.toUint,Qt::KeepAspectRatio);

张贴在这里，因为精彩的倒影让我思考。

Answer 1

解决方法:

QImage small = jpgImage->scaled( inputWidth.toUInt(), inputHeight.toUInt(), Qt::KeepAspectRatio);