qfontcombobox

QFontComboBox is a class in Qt that provides a combobox widget for selecting a font from the available system fonts. It allows the user to choose a font by displaying a list of font names in a dropdown menu.

Here is an example of how to use QFontComboBox in Qt:

1. Include the necessary header file:

#include <QFontComboBox>

2. Create an instance of QFontComboBox:

QFontComboBox *fontCombo = new QFontComboBox(parent);

3. Set the current font:

fontCombo->setCurrentFont(QFont("Arial"));

4. Connect a slot to handle font selection changes:

connect(fontCombo, SIGNAL(currentFontChanged(const QFont&)), this, SLOT(handleFontChange(const QFont&)));

5. Implement the slot to handle the font change:

void MyClass::handleFontChange(const QFont& font) {
    // Do something with the selected font
}

6. Add the QFontComboBox to your layout or widget:

layout->addWidget(fontCombo);

By default, QFontComboBox will display the names of all available system fonts. However, you can customize its behavior by using the various member functions provided by the class, such as setting a specific font family or filtering the fonts based on certain criteria