QIcon::QIcon(), QPixmap::setAlphaChannel(), and input parameter ownership

[mule]

Does QIcon::QIcon( const QPixmap & pixmap ) take ownership of its input parameter, pixmap?
Does QPixmap::setAlphaChannel( const QPixmap & alphaChannel ) take ownership of its input parameter, alphaChannel?

In other words, for ...

QPixmap *  pPixmap;
QBitmap *  pBitmap;
QPainter  P;
QIcon *  pIcon;
 
pPixmap = <pointer to image previously read in>;
 
pBitmap = new QBitmap( * pPixmap );
 
P.begin( (QPaintDevice *) pBitmap );
// painting here
P.end();
 
pPixmap->setAlphaChannel( * pBitmap );
 
pIcon = new QIcon( * pPixmap );
 
...
 
delete  pIcon;

QPixmap *  pPixmap;
QBitmap *  pBitmap;
QPainter  P;
QIcon *  pIcon;

pPixmap = <pointer to image previously read in>;

pBitmap = new QBitmap( * pPixmap );

P.begin( (QPaintDevice *) pBitmap );
// painting here
P.end();

pPixmap->setAlphaChannel( * pBitmap );

pIcon = new QIcon( * pPixmap );

...

delete  pIcon;

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... does the delete statement also delete the Pixmap and/or the Bitmap?