Why sometimes the style of a button changes

John Van

The upper part of this picture is the style I set, and the third button is the hover state. But sometimes after the program runs for a period of time, When I hovered the mouse over the button, it changed to look like the bottom half of the image, and their functions are normal at this time. Because the styles of these buttons will not change during program operation, I am puzzled why this is the case?

SGaist

Hi,

How are you rendering this button ?
On which platform ?
With version of Qt ?

John Van

@SGaist

    ui->btn_min->setIcon(icon);
    ui->btn_min->setIconSize(QSize(25, 25));
ui->btn_min->setStyleSheet("QPushButton#btn_min,#btn_max { background-color: #303030; } QPushButton#btn_min:hover { background-color: #454545; }");

vs2019+qt vs tools
qt 5.14.2

This situation only occurs occasionally, so I'm sorry I couldn't find some pattern to provide more information.

Thanks.

SGaist

You should test this with a more recent version of Qt.

John Van

@SGaist
It still happened in Qt 5.15.11. Can you give me some advice?

Thanks

ChrisW67

@John-Van You are only setting the style sheet set on btn_min but complaining about the changed style of other icons. Perhaps you could post a self-contained, complete example that reproduces the failure.

BTW, I'd try removing the half-reference to #btn_max from the style you attached to btn_min.