drawing on a QPixmap or QImage

[gren15]

Can you draw on a QPixmap/ QImage?

I tried the following but it doesn't work:

QPixmap pixmap;
if ( pixmap.load("myImage.png") )		// load and draw image
p->drawPixmap( 100, 85, pixmap );
QPainter pixPaint(pixmap);        // Error: Can't convert from QPixmap to const QPaintDevice . But doesn't QPixmap inherit QPaintDevice???
pixPaint.drawLine(1,5);

QPixmap pixmap;
if ( pixmap.load("myImage.png") )		// load and draw image
p->drawPixmap( 100, 85, pixmap );
QPainter pixPaint(pixmap);        // Error: Can't convert from QPixmap to const QPaintDevice . But doesn't QPixmap inherit QPaintDevice???
pixPaint.drawLine(1,5);

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