47 lines
1.1 KiB
Text
47 lines
1.1 KiB
Text
Welcome to the Visual Class Libraries (vcl) code
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source/
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+ the main cross-platform chunk of source
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inc/
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+ cross-platform abstraction headers / definition
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vcl/
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+ external headers
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generic/
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+ shared helper code for backends,
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actually built into vcl
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headless/
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+ a backend renderer that draws to bitmaps
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aqua/
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+ OS/X backend
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ios/
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+ skeleton Android backend
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win/
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+ windows backend
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unx/
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+ unix specific platform backend code and its' sub-platforms
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plugadapt/
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+ pluggable framework to select correct unx backend
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gtk/
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+ gtk2 support
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gtk3/
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+ gtk3.2+ support
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kde/
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+ kde3 support
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kde4/
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+ kde4 support
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generic/
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+ raw X support
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How the platform abstraction works
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+ InitVCL calls 'CreateSalInstance'
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+ ths is implemented by the compiled-in platform backend
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+ it stores various bits of global state in the
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'SalData' (inc/saldatabasic.hxx) structure but:
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+ the SalInstance vtable is the primary outward facing gateway
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API for platform backends
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+ It is a factory for:
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SalFrames, SalVirtualDevices, SalPrinters,
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Timers, the SolarMutexe, Drag&Drop and other
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objects, as well as the primary event loop wrapper.
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