Set the transperancy for an image

[samir]

From mainwindow i'm opening a dialog writing:
SplashScreenDialog *splScrDlg = new SplashScreenDialog(this);
splScrDlg->show();

I'm opening and showing an image [for splash screen] writing
QPalette palette;
QPixmap pixMap("army.jpg");
QSize size(this->height(), this->width());
QPixmap pixMapScaled(pixMap.scaled(size));
palette.setBrush(QPalette::Background, pixMapScaled);
this->setPalette(palette);

Now i want to control the opacity[or transparency] of this image, i wan to make it transparent as time goes by[an splash screen behaviour].

How to do it ?

[yogeshgokul]

Call this function:

splScrDlg->setWindowOpacity (0.5);

splScrDlg->setWindowOpacity (0.5);

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[aamer4yu]

Call this function:

splScrDlg->setWindowOpacity (0.5);

splScrDlg->setWindowOpacity (0.5);

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In a loop probably...
something like -

// on timer event...
splScrDlg->setWindowOpacity( 1 - (time / duration) );

// on timer event...
splScrDlg->setWindowOpacity( 1 - (time / duration) );

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