Resizing a Window

[HoppaLong]

This is an open source app for advanced electronics hobbyists or professionals.  I respect the people who
authored this app, so I blanked out most of the windows contents.

A is the complete window.

I want to resize the window so the only visible area is the meter display (Not Active) at the bottom labeled B.

I tried NirCmd and Resource Hacker.  The results are the same.  The window is resized from the bottom up.
The image labeled C is the problem.  The window class (not title) is TMainForm.

Here is the NirCmd I tried:
nircmd.exe win setsize class "TMainForm" x, y, width, height

I need to resize the window from the top down, so the meter display (B) is the only visible area.  It's ok if the
caption bar is included.

The apps listed at the Raymond.CC blog are popular, but I need an app that supports command lines for a script.

https://www.raymond.cc/blog/how-to-resize-an-unresizable-window-or-dialog-box/

NirCmd has a long list of windows commands (version 2.81).  Is there a way to combine or execute a few of
those commands to produce the results I need?

[jumper]

The top-left corner of a window is always (0, 0), so it is impossible to resize a window from the top down. To get the effect you want, first you must reduce the height of the window and then move all the contents upward (child windows A and B in this case). If you have trouble moving "A" to a negative location, move it below "B" instead.