Font and Bitmap Server Collection

The Font and Bitmap Server collection contains only one component—the Font and Bitmap Server. As its name suggests, the Font and Bitmap Server manages fonts and bitmaps.

Figure 1. The Font and Bitmap Server collection

The CBR package name for the Font and Bitmap Server component is graphics_fbserv.

• The Font and Bitmap Server Overview
  The Font and Bitmap Server (FBServ) provides a memory efficient way of using bitmaps and fonts. It stores a single instance of each bitmap in either a shared heap or in eXecute In Place (XIP) ROM and provides clients with read and (when appropriate) write access.
• Font and Bitmap Server Example Code
  Example code for the Font and Bitmap Server collection.
• Extended Bitmaps
  The Font and Bitmap Server provides a framework for device creators to add support for their own types of bitmap compression. Bitmaps that use compression formats that are provided by device creators are known as extended bitmaps.
• Creating an Extended Bitmap Rasterizer
  An extended bitmap rasterizer is a DLL that decompresses extended bitmaps in order that they can be drawn by using the legacy BitGDI API.
• Heap Locking in the Font and Bitmap Server
  The Font and Bitmap Server's heap locking API is deprecated in Symbian OS v9.3 and later versions. This topic explains the rationale for this and how it affects existing applications that use the CFBsBitmap::LockHeap(), CFBsBitmap::LockHeapLC() and CFbsBitmap::UnlockHeap() functions.