setMask and setBrush problem using png with shadow

[rmagro]

Hi all,
I need your help to understand why may code is not able to load correctly a png image with shadow (that you can see attached) whan I try to set it in a QMainWindows with custom shape..

Code follows:

setMask((new QPixmap(":/dike5prova/logoic_big.png"))->mask());	
	QPalette* palette = new QPalette();
	palette->setBrush(QPalette::Window,*(new QBrush(*(new QPixmap(":/dike5prova/logoic_big.png")))));
	setPalette(*palette);	
	setWindowFlags(Qt::FramelessWindowHint);
	QWidget *centralWidget = new QWidget(this);

setMask((new QPixmap(":/dike5prova/logoic_big.png"))->mask());	
	QPalette* palette = new QPalette();
	palette->setBrush(QPalette::Window,*(new QBrush(*(new QPixmap(":/dike5prova/logoic_big.png")))));
	setPalette(*palette);	
	setWindowFlags(Qt::FramelessWindowHint);
	QWidget *centralWidget = new QWidget(this);

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it works well with normal png..
but using that one I'm not able to see the shadow correctly, only a black stripe..

How Can I correct my code ?

Many thanks in advance,
Roberto
logoic_big_shadow.jpg

[high_flyer]

Where is the code you posted located in - in which class? is it in a QMainWindow subclass?

[rmagro]

it is in the MainWindows..

myExample::myExample()
{

here..

}


class myExample: public QMainWindow
{
Q_OBJECT

public:
myExample();

...

}