Symbian
Symbian OS Library

SYMBIAN OS V9.3

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Open Font System framework behaviour


Font and Bitmap Server startup

During Font and bitmap server startup:

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When a client requests a CFont*

Clients request a CFont* matching a particular font specification using CBitmapDevice::GetNearestFontInPixels().

The framework then:

Note that there is no way for the user to request a particular type of font format, e.g. It is not possible to specifically request a TrueType font or an Adobe Type 1 font etc.

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When a glyph is required

The Font and Bitmap Server gets the glyph for each character, using this CFont, as required. Glyphs that have already been created are taken from a glyph cache.

New glyphs are created by implementations of the virtual function COpenFont::RasterizeL(), and are then added to a per-font cache.