[Qt-interest] Qt memory management.

[Ramesh]

Hi,

today i found this link

 

http://doc.trolltech.com/4.5/shared.html

 

in the list of class section i found,

 

QPixmap p1, p2;

p1.load("image.bmp");

p2 = p1;                        // p1 and p2 share data

 

 QPainter paint;

 paint.begin(&p2);               // cuts p2 loose from p1

 paint.drawText(0,50, "Hi");

 paint.end();

 

Qt widgets uses shared memory so  we can't copy a widget to another widget
right? 

 

But in this case 

p2 = p1;

both are Qpixmap object, and Qpixmap is not inherited from Qobject so
assigning a pixamp to another leads to copy operation right?.

 

 

 


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