Question

return new Size(bounds.Right - bounds.Left + (int)(form.MyAutoScaleFactor.Width * 4), bounds.Bottom - bounds.Top);

but i get warning of

Warning 2   Accessing a member on 'NonFullscreen.MessageBoxForm.MyAutoScaleFactor' may cause a runtime exception because it is a field of a marshal-by-reference class  C:\Projekti\Skladiscenje\Skladiscenje\NonFullscreen\MessageBoxForm.cs   244 60  NonFullscreen

how can i prevent runtime exception?

Answer 1

According to the docs for that warning, something like this may help (by extracting to a local variable first):

var scaleFactor = form.MyAutoScaleFactor;

return new Size(bounds.Right - bounds.Left + (int)(scaleFactor.Width * 4),
                bounds.Bottom - bounds.Top);