Desktop wallpaper Fade In

**Dan`** · 29th November 2010, 19:48

Hi everyone

I'm pretty much new to the QT world, so I'm trying to learn something by reading codes and stuff. My main problem now is that I need to set a wallpaper, showing it slowly from a black background.
I googled and tested some methods, but couldn't get it working.
So I'll just post my little code and ask if someone can explain me a way to make the effect I'm looking for

Qt Code:

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void Desk::set_wall() {
	setPixmap(wall_img);
	setScaledContents(true);
	setGeometry(0, 0, 1280, 1024);
}

void Desk::set_wall() {
	setPixmap(wall_img);
	setScaledContents(true);
	setGeometry(0, 0, 1280, 1024);
}

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Thanks!

**high_flyer** · 29th November 2010, 19:59

ok, where is the code that deals with fading in?

**Dan`** · 29th November 2010, 20:26

Actually I removed it and what I posted is the simple code that provides me the wallpaper.
After trying to get it working with a for and a setAlpha, I gave up and posted here to get some help on the whole thing, because some people draws a rectangle and make it fade out, and I don't know which is the right way to do it.
I also read on some KDE page online that the setOpacity method its not either a good way.
So I don't know, I'm stuck on this