When you're running code or in runtime environment you obviously can't
change the design of the forms, but you can most certainly move controls,
and sat there with a knife properties.
for example, to move a control on your screen to the 2.5 inch position, you
can go:
Me.Command0.Left = 1440 * 2.5
It is not clear at all if you're asking if you can resize and move controls
at run time, or if you're asking for some generalized code that will
automatically resize all controls and all forms and all text boxes on your
form in a runtime environment (that is a considerably different question
then which I just answered above).
There are a number of examples of code and even commercial code that you can
purchase that will actually resize your forms + contorls to fit on monitors
a different resolutions.