Hi Navid
ScratchPad does not include a manifest to tell Windows that it supports High DPI. As a result, when you run ScratchPad on a high resolution monitor, Windows automatically scales the display up to fit. Therefore, you are certainly able to use the application. All the menus, toolbar buttons, dialogs all appear the correct size. However, since Windows is scaling the bitmap rendering of the app, the menu fonts and toolbar button images are a little pixelated.
Ray