From Forum Nokia Wiki

ID	...	Creation date	June 11, 2009
Platform	S60 3rd Edition, FP1, FP2 S60 5th Edition	Tested on devices	Nokia 5800 XpressMusic
Category	Qt for Symbian	Subcategory	UI

Keywords (APIs, classes, methods, functions): QWidget::setPalette(), QPalette::setBrush, QPixmap(),QPixmap::scaled()

Overview

This code snippets shows how to load image, resize image and set image in background of widget/application. The API QPixmap() will load image using file name. API QPixmap::scaled() will returns a copy of the pixmap scaled to a rectangle with the given width and height. QPalette::setBrush() sets the brush for the given color role (here background) to the specified brush (here image)for all groups in the palette. QWidget::setPalette() set a given palette for a Widget.

This snippet can be self-signed. As it does not use any API which require developer/certified signing.

Preconditions

• Download and Install latest version Qt for Symbian - Installation packages which has links on how to install the latest version

Headers required

#include <QPalette>
#include <QDesktopWidget>

Source

void SetBackground::SetBackgroundImage()
{
	//Using QPalette you can set background image as follows.
	 QPalette p = palette();
 
	 //Load image to QPixmap, Give full path of image
	QPixmap pixmap1("c://01.JPG"); //For emulator C: is ..\epoc32\winscw\c so image must be at that location
 
	//resize image if it is larger than screen size.
	QDesktopWidget* desktopWidget = QApplication::desktop();
	QRect rect = desktopWidget->availableGeometry();
 
	QSize size(rect.width() , rect.height());
	//resize as per your reqirement..
	QPixmap pixmap(pixmap1.scaled(size));
 
	p.setBrush(QPalette::Background,  pixmap);
	setPalette(p);
}

Postconditions

The code snippet is expected to show background image in application.

Code Example

• The Code Example will set image in background and example is tested on Nokia 5800 XpressMusic.