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glFlush() vs. glFinish()
(HTML)
QA1158: Explanation of the differences between glFlush() and glFinish()
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OpenGL |
Technical Q&As |
2004-10-11
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How do I determine how much VRAM is available on my video card?
(HTML)
QA1168: Using Core Graphics and IOKit to find the physical size of VRAM on installed hardware.
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Cocoa, Games, OpenGL, Quartz |
Technical Q&As |
2004-10-11
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Setting the ColorSync profile for a NSBitmapImageRep object
(HTML)
QA1369: Setting the ColorSync profile for a NSBitmapImageRep object
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Cocoa, ColorSync |
Technical Q&As |
2004-09-08
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Graphics Exporters - Creating 16-bit-per-channel image files
(HTML)
QA1354: Discusses how to use QuickTime Graphics Exporters to create 16-bit-per-channel image files.
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QuickTime |
Technical Q&As |
2004-06-03
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Creating an OpenGL texture from an NSView
(HTML)
( )
QA1325: Addresses the issues involved with using an NSView as the source data for an OpenGL texture.
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OpenGL |
Technical Q&As |
2004-02-13
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OpenGL Driver Monitor Decoder Ring
(HTML)
()
QA1334: Describes what each of the parameters available in the OpenGL Driver Monitor measure.
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OpenGL |
Technical Q&As |
2004-01-30
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Shearing a Coordinate Space with NSAffineTransform
(HTML)
()
QA1332: Describes a simple way to shear coordinate spaces by adding a few methods to the NSAffineTransform class.
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Cocoa, Quartz |
Technical Q&As |
2004-01-29
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Sharpening Full Scene Anti-Aliasing Details
(HTML)
QA1268: Using full scene anti-aliasing (FSAA) in OpenGL applications.
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OpenGL |
Technical Q&As |
2003-10-10
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Providing QuickDraw with a Known Good Port
(HTML)
()
Deprecated - QA1237: How to use SetPort( NULL) to provide QuickDraw with a known good port.
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Carbon |
Technical Q&As |
2003-09-29
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CGImageRef contents are immutable
(HTML)
()
QA1276: Explains that CGImageRef contents are considered immutable once created.
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Carbon, Cocoa, Quartz |
Technical Q&As |
2003-07-17
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Tioga PostScript Printing Plugins in Mac OS X 10.2
(HTML)
()
QA1085: Why Tioga printing plugins for PostScript printing aren't called on Mac OS X 10.2 and later.
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Printing |
Technical Q&As |
2003-07-14
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Updating OpenGL Contexts
(HTML)
()
QA1209: When and why to update an OpenGL context in response to system and user actions.
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Carbon, Games, OpenGL |
Technical Q&As |
2003-06-19
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Is ColorSync thread safe?
(HTML)
()
QA1261: Discusses ColorSync thread-safety issues.
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Carbon, Cocoa, ColorSync, Games, Hardware & Drivers, Performance, QuickTime |
Technical Q&As |
2003-04-17
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How do I use PMSessionGetGraphicsContext to get a CGContextRef?
(HTML)
()
Deprecated - QA1216: Describes how to use PMSessionSetDocumentFormatGeneration and PMSessionGetGraphicsContext to get a CGContextRef for printing.
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Carbon, Printing |
Technical Q&As |
2003-02-25
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Quartz 2D Thread Safety
(HTML)
()
QA1238: Explains the thread-safety issues for the Quartz 2D API.
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Carbon, Cocoa, Performance, Printing, Quartz |
Technical Q&As |
2003-02-25
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Using Clip Region and Buffer Rectangles with OpenGL Carbon
(HTML)
()
QA1222: Shows the basics of using buffer rectangles and clip regions with AGL.
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Carbon, Games, OpenGL |
Technical Q&As |
2002-12-19
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How do I tell if a particular display is being hardware accelerated by Quartz Extreme?
(HTML)
()
QA1218: Describes how to use CGDisplayUsesOpenGLAcceleration to see if a display is accelerated or not.
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Carbon, Cocoa, Games, OpenGL, Quartz |
Technical Q&As |
2002-12-04
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How can I programmatically determine the DPI of the current video mode?
(HTML)
()
QA1217: Describes how to compute the DPI for a given display in a given mode using Core Graphics.
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Carbon, Cocoa, Games, Quartz |
Technical Q&As |
2002-12-02
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GetProcAdress and OpenGL Entry Points
(HTML)
()
QA1188: Technique for finding function pointers for OpenGL entry points in Cocoa and Carbon
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Carbon, Games, OpenGL |
Technical Q&As |
2002-11-25
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Problems recording CopyBits into a PICT on Mac OS X 10.2
(HTML)
()
QA1189: Identifies a problem with CopyBits and PICT on Mac OS X 10.2 and gives a simple workaround.
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Carbon |
Technical Q&As |
2002-11-19
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QDSwapPort
(HTML)
()
QA1128: Explains when to use QDSwapPort.
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Carbon |
Technical Q&As |
2002-11-06
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Using cmPathBased profile locations on Mac OS X
(HTML)
()
QA1203: Shows how to correctly specify cmPath-based profile locations on Mac OS X
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ColorSync |
Technical Q&As |
2002-11-06
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Why does logging keep my Printer Module from working?
(HTML)
()
Deprecated - QA1182: Describes some problems with standard printf logging in a Printer Module on Jaguar.
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Printing |
Technical Q&As |
2002-11-06
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Quartz 2D Interpolation
(HTML)
()
QA1186: Explains how to control Quartz 2D's image interpolation.
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Carbon, Cocoa, Printing, Quartz |
Technical Q&As |
2002-10-29
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QuickDraw Text Anti-Aliasing using Quartz 2D
(HTML)
()
QA1193: Describes APIs added to Mac OS X to allow applications to draw QD text using CG anti-aliasing.
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Carbon |
Technical Q&As |
2002-10-29
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Getting the name of a profile
(HTML)
()
QA1205: Shows how to programmatically get the name of a ColorSync profile.
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ColorSync |
Technical Q&As |
2002-10-25
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Why don't all of my PDE localizations show up in all applications?
(HTML)
()
QA1185: Explains why some PDE localizations might not appear in all applications.
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Printing |
Technical Q&As |
2002-10-16
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Preserving embedded ICC profiles when using QuickTime Graphics Importer/Exporters
(HTML)
()
QA1145: Shows how to preserve the embedded ICC profile when using the QuickTime Graphics Importer/Exporter routines
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Carbon |
Technical Q&As |
2002-09-04
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ICC Profile copyright field
(HTML)
()
QA1136: Discusses how applications should honor the copyright field in the header of an ICC profile.
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ColorSync |
Technical Q&As |
2002-04-08
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Current GDevice Dependencies
(HTML)
()
QA1115: Describes potential problems with creating windows or ports when the current GDevice isn't the main device.
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Carbon, Games |
Technical Q&As |
2002-02-13
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IOKit Framework Headers
(HTML)
()
QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
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Hardware & Drivers |
Technical Q&As |
2002-01-15
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CGContextClosePath
(HTML)
QA1046: Explains when you should call CGContextClosePath.
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Carbon, Cocoa, Printing, Quartz |
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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Carbon, Cocoa, Printing, Quartz |
Technical Q&As |
2001-10-02
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Carbon Full Screen Conundrums
(HTML)
QA1068: Describes the available Mac OS X DrawSprocket services.
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Games |
Technical Q&As |
2001-08-20
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CGContext Bounds
(HTML)
QA1048: Explains how to determine the bounds of a CGContext.
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Carbon, Printing, Quartz |
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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Carbon, Cocoa, Printing, Quartz |
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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Carbon, Cocoa, Printing, Quartz |
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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Carbon, Cocoa, Printing, Quartz |
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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Carbon, Cocoa, Printing, Quartz |
Technical Q&As |
2001-07-02
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Improving ATSUI Text Drawing Performance
(HTML)
QA1027: Talks about one way of improving ATSUI text drawing performance.
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Typography |
Technical Q&As |
2001-04-17
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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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Carbon, Games, Quartz |
Technical Q&As |
2001-04-11
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SyncCGContextOriginWithPort
(HTML)
QA1010: Describes how to use SyncCGContextOriginWithPort.
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Quartz |
Technical Q&As |
2001-04-11
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Why are my Core Graphics calls drawing upside down?
(HTML)
QA1009: Explains why CoreGraphics drawing comes out upside down relative to QuickDraw drawing.
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Quartz |
Technical Q&As |
2001-04-11
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Creating Sub GWorlds using QTNewGWorldFromPtr
(HTML)
QA1014: Using QTNewGWorldFromPtr to create sub GWorlds which reference the pixel data of other GWorlds.
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QuickTime |
Technical Q&As |
2001-03-20
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Extracting DV Fields using QTNewGWorldFromPtr
(HTML)
QA1017: Describes using QTNewGWorldFromPtr to access individual fields contained within a frame of DV source.
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QuickTime |
Technical Q&As |
2001-03-20
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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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Carbon, QuickTime |
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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Carbon |
Technical Q&As |
2000-11-08
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GetPortBitMapForCopyBits
(HTML)
()
Deprecated - QD61: Describes the proper usage of GetPortBitMapForCopyBits.
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Carbon |
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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Carbon, Games |
Technical Q&As |
2000-11-08
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Legacy Devices
(HTML)
HW84: Discusses why legacy devices with hard-wired I/O addresses may not work properly with Open Firmware.
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Hardware & Drivers |
Technical Q&As |
2000-03-20
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When to use PCMCIA, PC Card, and CardBus
(HTML)
HW77: Explains the differences between PCMCIA, PC Card, and CardBus.
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Hardware & Drivers |
Technical Q&As |
1999-11-15
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Missing ColorSync Profiles
(HTML)
()
CS13: Describes ColorSync profiles, focusing on the desc tag of the profile and the results of incorrect tags.
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ColorSync |
Technical Q&As |
1999-05-03
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Difference between using Restart or Shut Down in the Finder's Special menu in Open Firmware
(HTML)
()
HW47: Explains the differences between using Restart or Shut Down on Open Firmware
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Hardware & Drivers |
Technical Q&As |
1999-02-15
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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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Carbon |
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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Carbon |
Technical Q&As |
1997-11-17
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Embedding ICC Profiles
(HTML)
()
CS06: Gives downloads for documents describing embedding ICC profiles in EPS, PICT, and TIFF files.
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ColorSync |
Technical Q&As |
1996-02-09
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Successful Call to NCWNewColorWorld
(HTML)
()
CS08: Explains the return value of NCWNewColorWorld and the CMWorldRef parameter as a valid return value when successful.
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ColorSync |
Technical Q&As |
1996-02-09
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Using Embedded EPS Profiles
(HTML)
()
CS09: Gives source on embedding ColorSync profiles in EPS as well as PICT and TIFF formats.
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ColorSync |
Technical Q&As |
1996-02-09
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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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
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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Carbon |
Technical Q&As |
1995-09-15
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Special Profile Sizes in ColorSync Manager
(HTML)
CS03: Answers several questions on special profile sizes in ColorSync Manager and other efficiency issues.
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ColorSync |
Technical Q&As |
1995-05-01
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