How to get windows interface scale(scale factor) in C# win forms?

Question

C++ / C#

Good afternoon, I'm making a screenshot on Win forms. And in order to take a screenshot of the entire screen, I need to specify its resolution, but the method that does this gives incorrect values ​​\u200b\u200bdue to the fact that I have a scale of 125%, I need to get the dpi / scale and multiply it by the resulting screen resolution.