These buttons - how are they called?

I know...
it pretty much sounds as a newbie question...

I vainly searched for the exact name of these buttons.
English is not my native language, but even if it was, I believe it is still somewhat difficult to find the right name.

Maybe they are called 'scroll wheel' buttons or something, I don't know.

Usually they allow precise steps of increasing or decreasing something, much better than sliders.

Thanks!

My guess is [Action Buttons]. In this instance, to increase or decrease the number adjusting the SIZE ??

Look here for detailed description. https://learn.microsoft.com/en-us/wi...-down-controls

According to Visual Studio 2022, that control is called a NumericUpDown control or Spin Box. The buttons are simply called Up Button and Down button, or Action buttons as Meebers said, if you want to group them under an umbrella term.

Visual Studio treats them both as two distinct buttons that either increment or decrement the control. They are named in code as UpButton and DownButton. It is up to the programmer to determine whether the up or down button is pressed, like this:

If (numericUpDown.UpButton)
{ // button pressed was up
number++;
}

else If (numericUpDown.DownButton)
{ // button pressed was down
number--;
}

That's probably more information that you need, but that's what they are called and how they work. :)

Thanks for the above.
On the Microsoft 'learn'-page Up and Down Arrowkeys is being mentioned, which I believe is good description of these controls.

"You can specify the UDS_ARROWKEYS style to provide a keyboard interface for an up-down control."

Thanks again!