如何在Qt的窗口标题栏中包含图标？

Question

I want to be able to replace the existing standard icon with my own but I am unsure how to do so. I only started Qt one week ago so I don't know much about the application. In addition to this I looked at the Qt website but their method for adding an icon did not work on my computer.

Answer 1

Besides using a RC file (Windows) you may specify the icon directly using qmake .

win32: RC_ICONS = icon.ico

Make sure it detects the path correctly. In the provided case the icon resides in the project root directory right beside the project file.

---

For window icons you typically, if application wide applicable, use some method of QApplication .

...
QApplication app(argc, argv);
...
app.setWindowIcon(QIcon(":/icon");
...

which is consuming the resource file using the alias icon . Here is an example ( res.qrc ):

<RCC>
    <qresource prefix="/">
        <file alias="icon">icon.png</file>
    </qresource>
</RCC>

More information on resources are here .

Answer 2

也许尝试在QWidget或QApplication上使用setWindowIcon函数。