The way I've done this in C# is that I have my application form size at a
set standard size ie: 600x800. I also have my forms "WindowState" under
properties set at Maximized so that when the program runs it takes up the
full monitor screen. That way, no matter what the resolution is set at, all
items ie: buttons will be displayed.

But then on another note. All monitors I work on, have a standard size
resolution.

Other than that, you probably need to change (everytime) the clientsize ie.
"this.ClientSize = new System.Drawing.Size(Whatever, Whatever). But then
you'll need to deal with anchors for all your controls and resize them as
well when resizing everything else. Once again I find it easier dealing with
"WindowState" cause everything will stay in the same location.

Hopefully I'm on the same page as you & hope that helps

MikeY