QSplash screen at the baskground

[raghvendramisra]

Hi i have an application in which i am displaying a splash screen on clicking a button.
but the splash screen is displayed at the background of the form.

Where can be the problem??????????

Regards

Raghvendra

[wysota]

In the code you use

And seriously, can you paste some of it?

[ashukla]

#include <QApplication>
 
#include <QSplashScreen>
 
#include <QWidget>
 
 
 
int main(int argc, char *argv[])
 
{
 
    	QApplication app(argc, argv);
 
 
 
	QPixmap pixmap;
 
	pixmap.load(":/images/splash.png");
 
	QSplashScreen *splash=new QSplashScreen(pixmap);
 
	splash->show();
 
 
	QWidget w;
 
	app.processEvents();
 
        w.show();
 
 
	splash->finish(&w);
 
	delete splash;
 
	return app.exec();
 
}

#include <QApplication>

#include <QSplashScreen>

#include <QWidget>



int main(int argc, char *argv[])

{

    	QApplication app(argc, argv);

	

	QPixmap pixmap;

	pixmap.load(":/images/splash.png");

	QSplashScreen *splash=new QSplashScreen(pixmap);

	splash->show();
	

	QWidget w;

	app.processEvents();

        w.show();
    

	splash->finish(&w);

	delete splash;

	return app.exec();

}

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hope its help.

[przemoc]

Using QSplashScreen usually involves setting Qt::WindowFlags, namely Qt::WindowStaysOnTopHint to get desired result.

I'd changed fragment of your code as follows:

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QPixmap pixmap(":/images/splash.png");
    QSplashScreen splash(pixmap, Qt::WindowStaysOnTopHint);
    splash.show();
    app.processEvents();
    // (...)
    splash.finish(&w);
    return app.exec();
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QPixmap pixmap(":/images/splash.png");
    QSplashScreen splash(pixmap, Qt::WindowStaysOnTopHint);
    splash.show();
    app.processEvents();
    // (...)
    splash.finish(&w);
    return app.exec();
}

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[przemoc]

Sorry, I didn't spot earlier, that this topic is related to Qt3. In this case, you probably should use Qt::WStyle_StaysOnTop. There is also Qt::WStyle_Splash, maybe it'll be sufficient for you.

[raghvendramisra]

Hi ,
I tried with the "WStyle_StaysOnTop" flag but still my flash screen is in the back ground.

I am pasting a piece of my code.
In my application when i am clicking the ok button the function below is called and shall display Splash Screen on top.

void Form2::onOk()
{
 
      	QPixmap pixmap("splash.png");
 
      	QSplashScreen *splash =  new QSplashScreen(pixmap,Qt::WStyle_StaysOnTop);
      	splash->show();
 
	splash->message(QObject::tr("Setting up the main window..."),
        Qt::AlignRight | Qt::AlignTop, Qt::white);
 
      	delete splash;
 
}

void Form2::onOk()
{
      
      	QPixmap pixmap("splash.png");
      
      	QSplashScreen *splash =  new QSplashScreen(pixmap,Qt::WStyle_StaysOnTop);
      	splash->show();
     
	splash->message(QObject::tr("Setting up the main window..."),
        Qt::AlignRight | Qt::AlignTop, Qt::white);
      
      	delete splash;
      
}

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Plz tell me how to solve the problem.

Regards
Raghvendra

[wysota]

Are you deleting the splash screen right after creating it?

[raghvendramisra]

Actually i am creating bthe Splash screen , writting the message to it and then deleting the splash.
The splash screen comes and displays the message also but it comes at the background of the widget from where i am calling it.

So to see that i have to minimize my widget every time i call it.
hope i am clear with the problem................

[wysota]

Here is my working code for a splashscreen:

QPixmap splashpixmap(settings.appPath() + "/icons/splashskrin.png");
QSplashScreen *splash = new QSplashScreen( splashpixmap );
splash->show();
splash->message( QObject::tr("Loading bitmaps..."), Qt::AlignHCenter|Qt::AlignVCenter );
a.processEvents();
createMimeFactory();
editor *mw= new editor();
splash->message( QObject::tr("Loading plugins..."), Qt::AlignHCenter|Qt::AlignVCenter );
a.processEvents();
QString plugspath(settings.appPath()+"/plugins/");
plugins.load(plugspath);
plugins.addIOFormat((void*)newSTL, "STL");
splash->message( QObject::tr("Setting application..."), Qt::AlignHCenter|Qt::AlignVCenter );
a.processEvents();
splash->finish(mw);
splash->deleteLater();

QPixmap splashpixmap(settings.appPath() + "/icons/splashskrin.png");
QSplashScreen *splash = new QSplashScreen( splashpixmap );
splash->show();
splash->message( QObject::tr("Loading bitmaps..."), Qt::AlignHCenter|Qt::AlignVCenter );
a.processEvents();
createMimeFactory();
editor *mw= new editor();
splash->message( QObject::tr("Loading plugins..."), Qt::AlignHCenter|Qt::AlignVCenter );
a.processEvents();
QString plugspath(settings.appPath()+"/plugins/");
plugins.load(plugspath);
plugins.addIOFormat((void*)newSTL, "STL");
splash->message( QObject::tr("Setting application..."), Qt::AlignHCenter|Qt::AlignVCenter );
a.processEvents();
splash->finish(mw);
splash->deleteLater();

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[przemoc]

Hi ,
I tried with the "WStyle_StaysOnTop" flag but still my flash screen is in the back ground.

If changing line with deleting splash immediately after creating don't help you, you can try adding flag WX11BypassWM as documentation suggests, necessity of putting this flag depends on WM you use, so I presume it is better to always have it.
Did you try also Qt::WStyle_Splash? If your WM doesn't support NETWM, than mentioned earlier WX11BypassWM flag is used.

[raghvendramisra]

HI,
thanx everyone my problem is solved now.
i have used raise() to bring it to the top and it is working now..........

Regards