[Newbies] Resizing a form to specific width and height

[Matthias Korn]

Hi,

how can I resize a form to a specific width and height by either
stretching it on one axis or cropping it on the other axis.

I create the form with Form class>>fromBinaryStream: from a background
image (.jpg)

The messages in Form don't really seem to help or am I missing an
obvious one?

Thanks,
Matthias