org.rococoa.cocoa.qd
Interface QDLibrary.ATSQuadraticCurveProcPtr
- All Superinterfaces:
- Callback
- Enclosing interface:
- QDLibrary
public static interface QDLibrary.ATSQuadraticCurveProcPtr
- extends Callback
ATSQuadraticCurveProcPtr
Discussion:
A pointer to a client supplied callback function for handling
glyph curve drawing operations. This callback handles operations
to draw curves. The curve is a quadratic patch specified by a
start point (pt1), and end point (pt2), and a single control
point (controlPt).
Parameters:
pt1:
The starting point of the curve.
controlPt:
The off-curve control point.
pt2:
The end point of the curve.
callBackDataPtr:
A pointer to any application specific data that may have been
passed to the callbacks through the iCallbackDataPtr parameter
of the ATSUGlyphGetQuadraticPaths function.
Result:
Return status. Pass any errors you wish to propagate back to the
original caller of ATSUGlyphGetQuadraticPaths through this return
value. Note that any nonzero result from this callback will halt
the curve drawing process.
native declaration : /System/Library/Frameworks/ApplicationServices.framework/Versions/Current/Frameworks/QD.framework/Headers/ATSUnicodeGlyphs.h
Copyright © 2009. All Rights Reserved.