c++ - QT中如何制作带触发器的图片按钮

Question

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Answer 1

I want to make a button out of (just) an Image (not showing any border or outline), and I also need to be able to change the image when the mouse is hovering over the image and off the image. Any help?

也许最简单的方法是使用 QPushButton:

// the button has to be somehow initialized and maybe added to layout
QPushButton* pMyPushButton = new QPushButton(this);
layout()->AddWidget(pMyPushButton);

// try style it like that
// the concrete example limits the scope to pMyPushButton object 
pMyPushButton->setStyleSheet(
    "QPushButton {"
        "background: transparent;"
        "image: url(res/images/normal_bn_image.png);"
    "}"
    "QPushButton:hover {"
        "image: url(res/images/hover_bn_image.png);"
    "}"
  );

确保提供正确的图像 URL。也许这可以稍微澄清图像资源:Unable to set the background image in Qt Stylesheet