This tutorial intends to help you getting your Delphi Windows applications ready for ultra-high resolution ("4K") displays. It covers all topics from Delphi's UI scaling on systems with large fonts to per-monitor DPI-awareness on Windows 8.1:

• Dots per Inch (DPI) explained
• Windows and DPI, Delphi and DPI
• Testing high resolutions
• DPI virtualization in Windows
• Windows 8.1 multi-montor DPI scaling
• Declaring DPI-awareness in Delphi
• Flipping DPI at runtime on Windows 8.1