Question

I’m very frequently modifying an image within the picturebox so I though I would do something like this:

modify(ref pictureBox1.Image);

unfortunately it doesn’t work, it throws a following error “A property, indexer or dynamic member access may not be passed as an out or ref parameter”. Ok, I get the error – but still is there any work around or something to speed up my program?

Answer 1

All objects (reference types) in .NET are passed by reference, there is no benefit in adding ref keyword. Try this:

var image = pictureBox.Image;
modify(image);