The information provided here pertains primarily to GDI and DirectWrite. The Windows operating system has many text stack components: DirectWrite, GDI, Uniscribe, GDI+, WPF, RichEdit, ComCtl32, and others. Support for a script might require certain changes to text stack components and changes to fonts. This article describes changes made in each major release. Since before Windows 2000, text-display support for new scripts has been added in each major release of Windows.
