Direct2D is, of course, the premier hardware-accelerated, immediate-mode graphics API. Direct2D is so much more than that. First, I need to get hold of the DirectWrite factory object.
Here are some of the new additions to DirectWrite. The new remote-font APIs can be used with public or private Web services. In addition, they can be used to access raw, OpenType font files. The new APIs are used in conjunction with existing APIs for queuing requests to download remote font data and for handling the actual download process.
Other new APIs make it easier for apps to work with custom fonts that are stored in the local file system or that are loaded into a memory buffer. Directwrite api download sample illustrates code implementation for several different scenarios, including local fonts on disk, remote fonts on the Web, in-memory font data, and fonts in packed WOFF or WOFF2 formats.
DirectWrite has been updated in the Windows 10 Creators Update to support named instances of variable fonts. For more information, see the following topic: Improved support for color fonts Starting in Windows 10 Anniversary Update, DirectWrite provides built-in support for a wider variety of color font formats, allowing developers to use more types of fonts in their DirectWrite-powered apps than ever before.
This includes support for: Supported since Windows 8. For more information, see the following topics: DirectWrite color glyph sample Support for Adobe Typekit and other font-service clients Some font services, such as Adobe Typekit, have client-side utilities that allow a user to load fonts from the service and use them in different applications on their Windows machine.
These utilities typically work by making run-time calls to GDI to load additional fonts, rather than permanently installing fonts on the system. Because of that design, on earlier Windows versions, the fonts would be usable in GDI-based applications, but not in DirectWrite applications.
Fonts loaded by a font-service utility are visible in the system font collection obtained by calling the IDWriteFactory:: Because font services typically follow a per-user licensing model, fonts loaded by these utilities are managed on a per-user basis.
As a result, existing DirectWrite applications can utilize fonts that end-users have obtained using such services, without any code changes required in the application, providing a more seamless experience for users. Until recently, however, the specification has only allowed for collections in which glyph outlines use the TrueType format.
This applies to all Windows 10 editions, including Windows 10 Mobile, Xbox and HoloLens as well as the desktop client.
This allows applications to display content using any Windows font even if the font is not currently installed on the device. Support for the DirectWrite font-service mechanisms has been implemented in the XAML framework, which means that any applications that use XAML require no code changes in order to take advantage of the font service.You experience stability issues when you run an application that uses the DirectWrite API in Windows 7 or Windows Server R2.
Because Windows Presentation Foundation (WPF)4 uses DirectWrite APIs in Windows7, any WPF4-based application is susceptible to these issues. Prior to DirectWrite API support, text rendering was established with the help of the legacy Graphics Driver Interface (GDI) that was customised to support low-resolution displays, as a result of.
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Technical Previews of Direct2D, DirectWrite, and DXGI This release includes technical previews of Direct2D, DirectWrite and DXGI Direct2D is a hardware-accelerated, immediate-mode, 2-D graphics API that provides high performance and high quality rendering for 2-D geometry, bitmaps, and text.
Text Metrics In order to assist your layout, custom font selection, and other metric intensive operations, starting in Windows 8, DirectWrite has a number of new APIs to express all the info about fonts that you might require to develop rich text apps.
Fixes some issues that occur when you run an application that uses the DirectWrite API in Windows 7 or Windows Server R2. For example, the Visual Studio beta 2 IDE crashes when you the operations about the font file.