Qt3-QPainter rotate exception

[marcel]

Because the second time the label's pixmap is null since you set a QPicture instead.
You shouldn't use setPicture, but setPixmap and instead of a QPicture use a QPixmap.

So:

QPainter paint;
          QPixmap *pix=pxldest->pixmap();
 
          if(pix)
          {
              QPixmap rotated(pix->size().width(), pix->size().height());
              paint.rotate(27);
              paint.drawPixmap(0,0,*pix);
              paint.end();
              pxldest->setPixmap(rotated);
              QMessageBox::information(this,"Rotated","Image rotated");
          }

QPainter paint;
          QPixmap *pix=pxldest->pixmap();
       
          if(pix)
          {
              QPixmap rotated(pix->size().width(), pix->size().height());
              paint.rotate(27);
              paint.drawPixmap(0,0,*pix);
              paint.end();
              pxldest->setPixmap(rotated);
              QMessageBox::information(this,"Rotated","Image rotated");
          }

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Regards