How to create a bold, red text label in Qt?

Question

I want to write a single, bold red line in my application using Qt.

As far as I understand, I would create a QLabel, set its textFormat to rich text and give it a ri

Answer 1

You can use Qt StyleSheets and set the styleSheet property of QLabel

warning->setStyleSheet("font-weight: bold; color: red");

Qt supports most CSS styles on its QWidget-derived classes. You don't need to set the text format to Qt::RichText for this to work.

Answer 2

You can also do it programmatically using the settext function. Something like this:

QString labelText = "<P><b><i><font color='#ff0000' font_size=4>";
labelText .append("Text what u want to display");
labelText .append("</font></i></b></P></br>");
QLabel label->setText(labelText);

You can do it in a single line as well.

Answer 3

Try using HTML formatting: <b><font... etc </b>.

Qt Designer does it like this: <span style=" font-size:8pt; font-weight:600; color:#aa0000;">TextLabel</span>

Answer 4

Qt uses a simple HTML subset for formatting.