Draw line on image using QPainter

[Qt Coder]

Finally the line is visible over the image

The co-ordinates I used for drawing line were main culprit here
painter.drawLine(250,300,500,300);

also
 
 qDebug() << goodLoad << pixmap.isNull() << pixmap.size() << pixmap.depth();
 
shows
 
true false QSize(533, 292) 32

also

 qDebug() << goodLoad << pixmap.isNull() << pixmap.size() << pixmap.depth();

shows

true false QSize(533, 292) 32

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if I use ur co-ordinate,

painter.drawLine(40, 40, 200, 280);

line is drawn.....