Qt QRC资源文件-无法加载图标 [英] Qt qrc resource file - can't load icon

问题描述

我有一个Qt5桌面项目，并使用Qt Creator编辑器添加了一个"resource.qrc"文件，该文件在项目的.pro文件中创建了以下行:

I have a Qt5 desktop project and I added a "resource.qrc" file with the Qt Creator editor which created the following line into the project's .pro file:

RESOURCES = resource.qrc

我放了一个空白前缀和一个png文件(14x14)，然后尝试像这样使用它:

I put a blank prefix and a png file (14x14) and I tried to use it like this:

QPixmap pixmap = QPixmap ("://my_image.png");
ui->combobox->addItem(QIcon(pixmap), "itemname");

问题是:该图标不会显示！

The problem is: the icon won't show up!

以下作品:

QPixmap pixmap(14,14);
pixmap.fill(QColor("red"));
ui->combobox->addItem(QIcon(pixmap), "itemname");

所以问题肯定出在资源嵌入过程中..我注意到生成的"exe"里面没有资源部分...我没有静态链接的外部库，所以我认为我需要Q_INIT_RESOURCE(resource)宏(它给了我未定义的外部)

so the problem must be in the resource embedding process.. I noticed that the generated "exe" hasn't a resource section inside it... I don't have static linked external libraries, so I don't think I need the Q_INIT_RESOURCE(resource) macro (it gives me undefined external)

更新: 我在这里发布我的qrc文件:

Update: I'm posting here my qrc file:

<RCC>
    <qresource prefix="/">
        <file>my_image.png</file>
    </qresource>
</RCC>

这很简单，我不明白为什么在运行时图标不显示

it's pretty simple and I don't understand why at runtime icons are not showing up

推荐答案

@Nikos C.为您提供了有用的建议，但是我认为您的主要问题是您没有使用正确的资源链接.

@Nikos C. gives you useful advice, but I think your main problem was that you didn't use the correct link to the resource.

在您的代码中，您拥有:

In your code, you have:

QPixmap pixmap = QPixmap ("://my_image.png");

但是，根据文档，它应该是

but, according to the documentation, it should be

QPixmap pixmap = QPixmap (":/my_image.png");

或者您可以为资源指定别名，而改用这些别名.

or you can give aliases to your resources, and use those instead.

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