Release memory with the QImage

[ras123]

How I can clear or release memory associated witht he QImage? now I am doing like this
@ if(!image->isNull())
{
delete image;
image = new QImage;
}@

I know this is not a good way, but I need to get a QImage with null as shown above, so please help

Thanking You,
Ras

[tzander]

the above way is Ok, although I'm curious why you use isNull() instead of just deleting it.

Also notice that you probably want to avoid using new/delete for QImage. Its an internally ref-counted value type.

[tobias.hunger]

@image = QImage();@

should also release memory, and you do not need to make image a pointer to QImage to use it.

[andre]

Works, as long as you are certain that image is a valid pointer. Are you sure you need to use a pointer though?

[ras123]

Thanks, I changed the pointer option, and use image = QImage() to make it a null, as said by Tobias Hunger