I have tested this class on Win8.1, great work!

But this class will not work well when Windows display DPI rate is not 100%, say, 150%(Win10 Default for some new type ThinkPad laptops) or 200%(Microsoft Surface).

Some pixel size of extra elements(text/combo/datetime) are hard coded, say, always use 22 for TextBox height. I tried to modify some code, but It's really not a easy work to just adjust by 15/screen.TwipsPerPixelx, on 150% DPI, it will get 33 and that's too much for a single line TextBox.

My suggestion is to make some adjustment on element size and position for high DPI monitor.

Pardon for my bad English.~~

Thanks!