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CGContextClosePath
(HTML)
QA1046: Explains when you should call CGContextClosePath.
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Technical Q&As |
2001-10-02
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Saving the current Core Graphics Path
(HTML)
QA1056: Explains that the Core Graphics save and restore GState APIs do not affect the path.
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Technical Q&As |
2001-10-02
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CGContext Bounds
(HTML)
QA1048: Explains how to determine the bounds of a CGContext.
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Technical Q&As |
2001-07-02
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CGContextAddLineToPoint, CGContextAddCurveToPoint, et. al.
(HTML)
QA1049: Explains why the CGContextAddXYZ APIs don't draw anything immediately.
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Technical Q&As |
2001-07-02
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Drawing a Path Multiple Times
(HTML)
QA1047: Explains that path drawing operations consume the path.
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Technical Q&As |
2001-07-02
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Turning Off Core Graphics Clipping
(HTML)
QA1050: Explains how to clear the clipping path for a CGContext.
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Technical Q&As |
2001-07-02
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Unexpected CG state changes
(HTML)
QA1045: Explains why the Core Graphics drawing state sometimes changes for no apparent reason.
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Technical Q&As |
2001-07-02
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How do I use QuickDraw with CGDirectDisplay?
(HTML)
QA1011: Explains how to draw to a CGDirectDisplay-captured display using QuickDraw.
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Technical Q&As |
2001-04-11
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LockPixels and DisposeGWorld with QTNewGWorldFromPtr
(HTML)
QA1007: Clarifies some issues surrounding pointer ownership when creating GWorlds with QTNewGWorldFromPtr
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Technical Q&As |
2001-02-26
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CalcCMask and SeedCFill in Carbon
(HTML)
( )
QD62: Explains how to use CalcCMask and SeedCFill in Carbon even though Carbon doesn't support OpenPort.
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Technical Q&As |
2000-11-08
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GetPortBitMapForCopyBits
(HTML)
()
Deprecated - QD61: Describes the proper usage of GetPortBitMapForCopyBits.
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Technical Q&As |
2000-11-08
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QDFlushPortBuffer
(HTML)
()
QD65: Describes a possible solution for window update problems under Carbon.
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Technical Q&As |
2000-11-08
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Parsing the PICT File Format
(HTML)
()
Deprecated - QD56: Explains where to find information on the PICT file format and warns against parsing a PICT file.
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Technical Q&As |
1998-02-10
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Creating Gray Scaled Images > 8 bits
(HTML)
()
Deprecated - QD51: Shows how to create gray-scaled images at resolutions greater than 8 bits for display.
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Technical Q&As |
1997-11-17
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Using qd and QDGlobals
(HTML)
()
Deprecated - QD40: Why a sample program compiled with SC may give the link error: undefined entry qd. Provides a solution.
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Technical Q&As |
1996-02-09
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Using Temporary Memory with OpenPicture
(HTML)
Deprecated - QD20: Provides several techniques of causing OpenPicture to allocate temporary memory for a picture handle.
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Technical Q&As |
1996-02-01
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Converting RGB Colors to a Palette Index
(HTML)
Deprecated - QD21: Explains how to convert RGB colors into the palette index created by an application.
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Technical Q&As |
1995-09-15
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Error -151 and NewGWorld
(HTML)
Deprecated - QD18: Explains what the error code -151 means when in NewGWorld.
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Technical Q&As |
1995-09-15
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Incorrect Inside Macintosh Volume V documentation
(HTML)
Deprecated - QD15: Identifies incorrect documentation in Inside Macintosh Volume V regarding the formats of PnPixPat and BkPixPat opcodes.
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Technical Q&As |
1995-09-15
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Problem Getting PICTS to Display in Correct Colors
(HTML)
Deprecated - QD24: Using a custom color table to get PICTs to display with the right colors in an offscreen GWorld.
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Technical Q&As |
1995-09-15
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Problem with PaintRgn on 256-color Screens
(HTML)
Deprecated - QD23: PaintRgn with RGBForeColor and transfer mode addOver doesn't return color to original on 256-color-screens.
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Technical Q&As |
1995-09-15
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Problems Creating a Mask for a Picture
(HTML)
Deprecated - QD27: Demonstrates creating a mask where the mask is 0 for pure white pixels and 1 everywhere else.
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Technical Q&As |
1995-09-15
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Spooling in or out of CompressPicture or CompressImage
(HTML)
Deprecated - QD17: Recommends alternatives to spooling the results of CompressPicture or CompressImage to or from disk.
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Technical Q&As |
1995-09-15
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Window Manager and EraseRect
(HTML)
Deprecated - QD26: Why WindowManager causes a flicker using EraseRect and provides a solution for this problem.
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Technical Q&As |
1995-09-15
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