help with pointers and

[sincnarf]

Hello!

I am using Qt4.2.3.

Please help me with pointers and correct this piece of code. And if possible, put some explanation on why I enounter errors such as "functional cast expression list treated as compound expression" and "no matching call' errors. Thanks in advance

void MainWinow::doFunction1()
 {
 	QImage *image = new QImage(QSize(100,100), QImage::Format_RGB32);
 
 	int x = 0;
 	int y = 0;
 	for (x= 0; x < image->width(); x++){
 		for (y = 0; y < image->height(); y++){
 			image->setPixel(x, y, QRgb(255,0,0));
 		}
 	}
 
 	QGraphicsScene *scene = new QGraphicsScene;
	QGraphicsPixmapItem *item;
	item->setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
 	item->setFlag(QGraphicsItem::ItemIsMovable);
 	scene->addPixmap(QPixmap::fromImage(&image));
 
//graphicsViewVis is globally declared
 	graphicsViewVis->setScene(scene);
	graphicsViewVis->show();
 
 }

void MainWinow::doFunction1()
 {
 	QImage *image = new QImage(QSize(100,100), QImage::Format_RGB32);
 	
 	int x = 0;
 	int y = 0;
 	for (x= 0; x < image->width(); x++){
 		for (y = 0; y < image->height(); y++){
 			image->setPixel(x, y, QRgb(255,0,0));
 		}
 	}
 	
 	QGraphicsScene *scene = new QGraphicsScene;
	QGraphicsPixmapItem *item;
	item->setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
 	item->setFlag(QGraphicsItem::ItemIsMovable);
 	scene->addPixmap(QPixmap::fromImage(&image));
 		 	
//graphicsViewVis is globally declared
 	graphicsViewVis->setScene(scene);
	graphicsViewVis->show();
 		
 }

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