Archived:Changing QWidget background colour

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Qt Quick should be used for all UI development on mobile devices. The approach described in this article (using C++ for the Qt app UI) is deprecated.

This code snippet shows how to change the QWidget background colour.

Article Metadata

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Tested with

Devices(s): Nokia 5800 XpressMusic

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Compatibility

Platform(s): S60 3rd Edition, FP1, FP2
S60 5th Edition

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Article

Keywords: QPalette

Created: tepaa (27 Mar 2009)

Last edited: hamishwillee (17 Oct 2012)

Main function

This function is used to set the widget colour.

 p.setColor(QPalette::Background, Qt::black);

Source

Change the background colour of the QWidget.

#include <QPalette>
 
QMyWidget::QMyWidget(QWidget *parent)
    : QWidget(parent)
    {
    QPalette p(palette());
    // Set background colour to black
    p.setColor(QPalette::Background, Qt::black);
    setPalette(p);
    }

See also

For more information, see QPalette.

Postconditions

The background colour QWidget is black.