Document Revision History
This table describes the changes to CGContext Reference.
|2013-01-28||Corrected formula for kCGBlendModePlusDarker.|
|2011-10-12||Moved line constants to the CGPath Reference.|
|2010-08-03||Moved fill rules for paths to the Quartz 2D Programming Guide.|
|2010-07-01||Clarifications on many CGContext functions.|
Clarified how the parameters of
Clarified how paths are created and drawn. Some terminology for paths is defined in CGPath Reference.
|2010-05-20||Documented symbols being made publicly available in iOS 4.0.|
|2009-05-26||Updated function discussions to account for coordinate system differences between iOS and OS X.|
|2008-04-08||Made a minor typographical change.|
|2007-07-17||Updated for OS X v10.5.|
All instances of the
Added the Porter-Duff blend modes to
Modified the description of the auxiliaryInfo parameter in
Added a performance tip to
Clarified the definition of “inside” for
|2006-01-10||Added information to the discussion for blend mode constants.|
Improved wording concerning text clipping in “CGTextDrawingMode.”
|2005-11-09||Revised information about text space and user space.|
|2005-04-29||Updated for OS X v10.4.|
Added the functions
Added constants for
Updated graphics context information and added cross references to conceptual documentation.
First version of this document. An earlier version of this information appeared in Quartz 2D Reference.
© 2003, 2013 Apple Inc. All Rights Reserved. (Last updated: 2013-01-28)