Type: info
Title: Two new methods for VCL's SalGraphics
Posted by: [EMAIL PROTECTED]
Affected: [EMAIL PROTECTED],[EMAIL PROTECTED],vcl
Effective from: CWS aw024
*Summary*
--------
in vcl/inc/salgdi.hxx:
+virtual bool drawAlphaBitmap() = 0;
+virtual bool drawAlphaRect() = 0;
*Description*
-------------
The VCL OutputDevice now passes down a few alpha operations down to
the system dependent parts, which can now optionally use optimized
operating system functionality there.
All implementations of the SalGraphics interface need to add those two
methods (already done for the unx and win versions), but can opt to
simply return false there (which then falls back to the old behaviour
in the upper layers).
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