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Date |
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Variable arguments in Objective-C methods
(HTML)
QA1405: How to implement methods which take a variable number of arguments.
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Objective-C Language |
2005-01-13 |
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Resolves may return an IPv6 address in Panther
(HTML)
QA1298: Explains why you get an IP address of 0.0.0.0 when resolving a Rendezvous service.
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Networking |
2005-01-10 |
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Finding an NSView's current magnification.
(HTML)
QA1346: How to discover the current magnification (zoom level) of any NSView.
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Graphics & Imaging, User Experience |
2004-12-13 |
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NSOpenGLView redraw problems after a window is closed and re-opened.
(HTML)
QA1353: Workaround for NSOpenGLView failure to draw after its window is closed and re-opened.
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Graphics & Imaging |
2004-12-03 |
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Why aren't my tracking rects working?
(HTML)
QA1355: Describes a common mistake in setting up cursor-tracking rectangles.
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Events & Other Input, User Experience |
2004-12-02 |
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OpenGL Sample Code
(HTML)
QA1166: Describes new naming convention for OpenGL sample code
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Games, Graphics & Imaging |
2004-12-01 |
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Sending an Email
(HTML)
QA1084: Shows how to create an email in the user's prefered email application.
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Interapplication Communication, Internet & Web, Networking |
2004-11-05 |
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Using Interface Builder's NSOpenGLView or Custom View objects for an OpenGL application
(HTML)
QA1167: Describes usage cases for both NSOpenGLViews and Custom Views for Cocoa OpenGL applications
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Graphics & Imaging |
2004-10-28 |
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Sorting Like the Finder
(HTML)
QA1159: Shows how to sort strings like the Finder's list view.
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File Management, Text & Fonts |
2004-10-27 |
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Registering for sleep notifications
(HTML)
QA1340: Explains how register for sleep notifcations on Mac OS X.
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Resource Management |
2004-10-25 |
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Preventing sleep
(HTML)
QA1160: Explains how your application can prevent the system from sleeping.
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Resource Management |
2004-10-22 |
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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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Graphics & Imaging |
2004-10-11 |
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NSTimers and Rendering Loops
(HTML)
QA1385: Using Cocoa timers (NSTimer) to drive a rendering loop
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Events & Other Input, Games, Graphics & Imaging |
2004-10-04 |
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Movies - Saving movie playback hints
(HTML)
QA1366: Explains how to save and load media play hints from Movie files.
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QuickTime |
2004-09-14 |
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CGBitmapContextCreate Supported Color Spaces
(HTML)
QA1037: Lists the color space and alpha info combinations currently supported by CGBitmapContextCreate.
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Games, Graphics & Imaging |
2004-09-09 |
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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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Graphics & Imaging |
2004-09-08 |
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Rendezvous enforces the TXT record format in Panther
(HTML)
QA1306: Explains how mDNSResponder enforces the proper TXT record format in Panther.
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Networking |
2004-07-14 |
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Updating the TXT record of a Rendezvous service
(HTML)
QA1302: Explains how to update a Rendezvous TXT record while running on either Jaguar or Panther.
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Networking |
2004-07-14 |
Getting a Packet Trace
(HTML)
( )
QA1176: Lists tools available for looking at the network packets on the wire.
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Internet & Web, Networking |
2004-07-13 |
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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 |
2004-06-03 |
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Discovering all advertised Rendezvous service types
(HTML)
QA1337: Explains how to discover all Rendezvous service types being advertised on the local network.
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Networking |
2004-06-01 |
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Avoiding the -42 error with DiscRecording
(HTML)
QA1292: Explains how to workaround the -42 error when using the DiscRecording API.
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File Management |
2004-05-25 |
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Rendezvous enforces the service type format in Panther
(HTML)
QA1198: Explains why registering a Rendezvous service might fail on Panther.
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Networking |
2004-03-23 |
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The Rendezvous Name is not the Rendezvous name
(HTML)
()
QA1228: Explains why you should use the Computer Name when advertising a Rendezvous service.
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Networking |
2004-03-05 |
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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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Graphics & Imaging |
2004-01-29 |
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Downloading through a proxy server in Mac OS X
(HTML)
QA1296: Explains when downloading through a proxy server will work, and when it will fail.
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Networking |
2003-10-29 |
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Environment Variables
(HTML)
QA1255: Describes how a process gets its environment variables.
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Runtime Architecture |
2003-10-29 |
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Rendezvous TXT record rate limiting in Panther
(HTML)
QA1293: Explains how mDNSResponder implements TXT record rate limiting in Panther.
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Networking |
2003-10-23 |
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Third party VFS can't unmount on Mac OS X 10.3
(HTML)
QA1308: Describes changes in unmounting behavior for VFS plug-ins under Mac OS X 10.3 "Panther."
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File Management |
2003-10-23 |
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Don't forget to cancel your Rendezvous resolve
(HTML)
QA1297: Explains why it's important to cancel a Rendezvous resolve operation.
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Networking |
2003-10-15 |
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Suppressing the "unexpectedly quit" alert
(HTML)
QA1288: Describes how to suppress the "unexpectedly quit" alert.
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User Experience |
2003-10-10 |
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Rendezvous and wake from sleep
(HTML)
QA1290: Explains why applications that use Rendezvous should stay registered and continue browsing on sleep.
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Networking |
2003-09-18 |
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How to add other pasteboard types to an HFS Promise drag in Cocoa
(HTML)
QA1300: Explains how to add other pasteboard types to an HFS Promise drag in Cocoa.
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Interapplication Communication |
2003-09-15 |
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How to remove the "Open Recent" menu item in a Document-based Cocoa application
(HTML)
QA1289: Explains how to remove the "Open Recent" menu item in a Document-based Cocoa application.
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User Experience |
2003-09-15 |
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How to set a custom drag image when doing an HFS Promise drag in Cocoa
(HTML)
QA1200: Explains how to set a custom drag image when doing an HFS Promise drag in Cocoa.
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Interapplication Communication, User Experience |
2003-09-15 |
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CFXML to CFPropertyListRef (and back!)
(HTML)
()
QA1208: Describes to how save and restore a CFPropertyListRef to and from an XML file.
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Data Management |
2003-08-29 |
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CGImageRef contents are immutable
(HTML)
()
QA1276: Explains that CGImageRef contents are considered immutable once created.
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Graphics & Imaging |
2003-07-17 |
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Is ColorSync thread safe?
(HTML)
()
QA1261: Discusses ColorSync thread-safety issues.
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Graphics & Imaging |
2003-04-17 |
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PPPoE Server for Testing
(HTML)
()
QA1252: Describes how to configure Mac OS X as a PPPoE server for testing purposes.
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Networking |
2003-04-11 |
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Developing for VFS
(HTML)
()
QA1242: Describes Apple's position on developing external file systems (VFS plug-ins) for Mac OS X.
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File Management |
2003-03-26 |
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FSSetCatalogInfo versus UID and GID
(HTML)
()
QA1251: Describes why FSSetCatalogInfo does not set the UID and GID of the file, and provides a work around.
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File Management |
2003-03-26 |
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Debugging Graphics with QuartzDebug
(HTML)
()
QA1236: Explains how to use QuartzDebug to debug graphics issues.
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Graphics & Imaging |
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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Graphics & Imaging, Performance, Printing |
2003-02-25 |
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Programmatically causing restart, shutdown and/or logout
(HTML)
()
QA1134: Describes how to programmatically cause restart, shutdown, sleep or logout.
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Events & Other Input, Process Management, Resource Management |
2003-02-10 |
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Converting to Precomposed Unicode
(HTML)
()
QA1235: Describes how to convert a string to precomposed Unicode.
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Internationalization, Text & Fonts |
2003-02-07 |
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BOM characters in 'utxt' clipboard flavor
(HTML)
()
QA1221: Explains the use of the BOM character in 'utxt' scrap data
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Data Management, Interapplication Communication |
2003-01-20 |
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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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Games, Graphics & Imaging, Performance |
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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Games, Graphics & Imaging |
2002-12-02 |
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Re-enabling dragging from NSTableView to other applications
(HTML)
()
QA1220: Explains how to re-enable drag-and-drop from NSTableViews to other applications
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Interapplication Communication, User Experience |
2002-12-02 |
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Quartz 2D Interpolation
(HTML)
()
QA1186: Explains how to control Quartz 2D's image interpolation.
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Graphics & Imaging, Printing |
2002-10-29 |
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Why does -stringByTrimmingCharactersInSet: give me an empty string result when it shouldn't?
(HTML)
()
QA1202: Why -stringByTrimmingCharactersInSet: sometimes returns an empty string result in Mac OS X 10.2.x when it shouldn't.
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Data Management |
2002-10-15 |
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SCSIAction and IOSCSIUserClient on Mac OS X 10.2
(HTML)
()
QA1201: Describes migrating to a new API for SCSI Parallel devices starting with Mac OS X 10.2.
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Printing |
2002-09-13 |
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Preventing crashes when using multiple disabled but editable NSComboBoxes
(HTML)
()
QA1142: How to prevent a crash when using multiple disabled -- but editable --NSComboBoxes in a view.
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User Experience |
2002-06-03 |
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Disabling a Processor on a Multiprocessor System
(HTML)
()
QA1141: Describes how to disable a processor on a multiprocessor system for testing purposes.
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Performance |
2002-05-22 |
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Determining user login/logout status
(HTML)
QA1133: Tells how to determinine if a user is logged in, and how to get login/logout notification
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Process Management, Resource Management |
2002-04-08 |
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Calling an AppleScript and providing parameters from an Application
(HTML)
()
QA1111: Explains calling and providing parameter values to an AppleScript event handler from an application written in C.
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AppleScript |
2002-03-13 |
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Solving NSTabView drawing problems in Mac OS X 10.1.x
(HTML)
()
QA1117: Explains how to work around NSTabView draw problems in Mac OS X 10.1.x
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User Experience |
2002-02-14 |
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Power Management; Policy Maker vs. Power Controller
(HTML)
()
QA1121: Describes the differences between a Power Management Policy Maker and a Power Management Power Controller.
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Events & Other Input |
2002-02-13 |
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Static linking of user binaries on Mac OS X
(HTML)
()
QA1118: Explains why static linking of user binaries is not supported on Mac OS X, and possible workarounds.
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Runtime Architecture |
2002-02-07 |
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Is QuickTime thread-safe?
(HTML)
QA1088: Discusses thread-safety and reentrancy of the QuickTime library on both Mac & Windows.
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Design Guidelines, Process Management |
2001-11-01 |
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Background-only apps with NSStatusItems become active in 10.1 on NSStatusItem clicks
(HTML)
QA1081: Preventing background-only apps from activating when their NSStatusItem(s) are clicked in Mac OS X 10.1.
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Events & Other Input, User Experience |
2001-10-30 |
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Setting environment variables for user processes
(HTML)
QA1067: Tells how to set environment variables for user processes.
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Data Management, Games, Porting, Runtime Architecture, Tools |
2001-10-25 |
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Setting the preferred CMM programatically?
(HTML)
QA1086: Uses the NCMConcatProfileSet structure to specify the CMM to be used to make the CMWorldRef with the NCWConcatColorWorld function.
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Graphics & Imaging |
2001-10-24 |
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CGContextClosePath
(HTML)
QA1046: Explains when you should call CGContextClosePath.
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Graphics & Imaging, Printing |
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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Graphics & Imaging, Printing |
2001-10-02 |
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Comparing selectors in Cocoa-Java code
(HTML)
QA1069: Explains why Objective-C and Java selectors appear to be the same name but equality tests fail.
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Java |
2001-08-31 |
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CGContext Bounds
(HTML)
QA1048: Explains how to determine the bounds of a CGContext.
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Graphics & Imaging, Printing |
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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Graphics & Imaging, Printing |
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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Graphics & Imaging, Printing |
2001-07-02 |
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How to measure CG text
(HTML)
QA1051: Explains how to measure Core Graphics text.
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Graphics & Imaging, Printing |
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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Graphics & Imaging, Printing |
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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Graphics & Imaging, Printing |
2001-07-02 |
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Getting NSWindow's toolbar actions to show up in Interface Builder
(HTML)
QA1030: How to add the missing -toggleToolbarShown: and -runToolbarCustomizationPalette actions to Interface Builder.
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Tools, User Experience |
2001-05-03 |
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How to get custom views to show up in NSToolbarItems
(HTML)
QA1029: Why custom views may not show up in an NSToolBarItem and how to make it visible.
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User Experience |
2001-05-03 |
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Detecting specific ROM-in-RAM Mac
(HTML)
()
Deprecated - HW49: Identifying a Mac by name ("iMac"), and better alternatives for determining specific features ("has Firewire").
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Design Guidelines, Runtime Architecture |
1999-10-05 |
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Allocate and Disk Full Error
(HTML)
()
FL12: Discusses a problem with AFP volumes displaying incorrect free space, and returning disk full errors.
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Networking |
1999-07-21 |
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Timely Issues - 1904
(HTML)
()
OPS23: Explains why the beginning of the year 1904 was chosen for epoch of the Time global variable.
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Resource Management |
1999-05-17 |
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Changing the TCP Window Size
(HTML)
NW47: Describes how to change the TCP window size in Open Transport.
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Networking |
1997-03-14 |
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T_DATA_REQ vs M_DATA TPI Message Blocks
(HTML)
()
NW42: Explains why OT passes data to a TPI module using M_DATA message blocks instead of M_PROTO+T_DATA_REQ.
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Networking |
1996-10-25 |
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Converting Simplified Chinese
(HTML)
()
TX06: Describes how to convert Macintosh Simplified Chinese encoding into GB2312.
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Text & Fonts |
1996-02-09 |
