Splash screen image is not showing up

newprint

(I am new Qt user)

I am figuring out how to display the Splash screen, and came upon this code https://qt-project.org/forums/viewreply/57388/. Code seems to work fine, but splash image (splash.png) is not showing up. Instead, I am getting completely black screen(that covers the entire screen) for 3 seconds, it disappears and shows the main window. I have added data.qrc with image directory. Running on Windows 7, 64 bit.

Here is a warning it is giving me
@Starting C:\Users\alex\Desktop\QT\build-Splash-Desktop_Qt_5_0_2_MSVC2012_64bit-Debug\debug\Splash...
QImage::scaled: Image is a null image
C:\Users\alex\Desktop\QT\build-Splash-Desktop_Qt_5_0_2_MSVC2012_64bit-Debug\debug\Splash exited with code 0@

Thanks !
@
//main.cpp
#include <QtCore>
#include <QApplication>
#include <QPixmap>
#include <QSplashScreen>
#include <QWidget>
#include <QMainWindow>
#include <QTimer>
#include <QThread>
#include <QDesktopWidget>
#include <QPainter>

int main(int argc, char* argv[])
{
QApplication app(argc, argv);
QMainWindow* viewer = new QMainWindow();
QImage splashScrImage (":/images/splash.png");
QSize screenSize = QApplication::desktop()->geometry().size();
QImage splashScr (screenSize, QImage::Format_ARGB32_Premultiplied);
QPainter painter (&splashScr);
painter.fillRect(splashScr.rect(), Qt::black);
QImage scaled = splashScrImage.scaled(screenSize, Qt::KeepAspectRatio);
QRect scaledRect = scaled.rect();
scaledRect.moveCenter(splashScr.rect().center());
painter.drawImage(scaledRect, scaled);
QPixmap Logo;
Logo.convertFromImage(splashScr);
QSplashScreen splashScrWindow (viewer, Logo, Qt::WindowStaysOnTopHint);
splashScrWindow.move(0,0);
splashScrWindow.show();
QTimer::singleShot(3000, &splashScrWindow ,SLOT(close()));
viewer->show();
return app.exec();
}
@

data.qrc file
@

<RCC>
<qresource prefix="/">
<file>images/splash.png</file>
</qresource>
</RCC>@

Splash.pro file
@
QT += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = Splash
TEMPLATE = app

SOURCES += main.cpp

HEADERS +=

FORMS +=

RESOURCES +=
data.qrc

OTHER_FILES +=
@

ChrisW67

Works fine here

The message "QImage::scaled: Image is a null image" implies that ":/images/splash.png" could not be loaded. Have you run qmake since you added data.qrc to the PRO file? Not a valid PNG perhaps?

dbzhang800

+1
[quote author="ChrisW67" date="1372302798"]Works fine here

The message "QImage::scaled: Image is a null image" implies that ":/images/splash.png" could not be loaded. Have you run qmake since you added data.qrc to the PRO file? Not a valid PNG perhaps?

[/quote]

newprint

[quote author="ChrisW67" date="1372302798"]Works fine here

The message "QImage::scaled: Image is a null image" implies that ":/images/splash.png" could not be loaded. Have you run qmake since you added data.qrc to the PRO file? Not a valid PNG perhaps?

[/quote]

Indeed, it was my fault .........I didn't know that you had to run qmake. Was under impression that all I need is to run Build.
Thanks !

raven-worx

[quote author="newprint" date="1372307299"]
Indeed, it was my fault .........I didn't know that you had to run qmake. Was under impression that all I need is to run Build.
Thanks ![/quote]
just for clarification:
qmake basically creates the makefiles for you (and a few things more) which are then built. Thus build command alone may not always work on always up to date makefiles.