• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
understanding conversions between CF and NS datatypes
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

understanding conversions between CF and NS datatypes


  • Subject: understanding conversions between CF and NS datatypes
  • From: "Allen Curtis" <email@hidden>
  • Date: Fri, 29 Aug 2008 10:38:34 -0700

Hello,

I am writing a Cocoa application for accessing a serial device. (IOKit) In
order to do this, you need to translate between CF and NS data types. (I
believe)

For instance:
        CFMutableArrayRef devicePaths = CFArrayCreateMutable(NULL, 0, NULL);

        GetSerialPortPaths(serialServices, devicePaths);  // Fills in
CFMutableArray
        serialPorts = (NSMutableArray *) devicePaths;
        //CFRelease(devicePaths);
        printf("Found %d serial ports\n", [serialPorts count]);

The problem:  I found that if you release the CFMutableArray, you also loose
the NSMutableArray

Question:
1. Where can I get a better understanding of the data conversion between
these different frameworks?
2. Ultimately the device path names will appear in a ComboBox. Was it
necessary to convert the CFMutableArray to a NSMutableArray for the
datasource function?

TIA

Allen
_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: understanding conversions between CF and NS datatypes
      • From: "Michael Ash" <email@hidden>
    • Re: understanding conversions between CF and NS datatypes
      • From: Jason Coco <email@hidden>
    • Re: understanding conversions between CF and NS datatypes
      • From: Dave Carrigan <email@hidden>
    • Re: understanding conversions between CF and NS datatypes
      • From: Randall Meadows <email@hidden>
  • Prev by Date: Connecting NSToolbar and NSTabView
  • Next by Date: Re: understanding conversions between CF and NS datatypes
  • Previous by thread: Re: Connecting NSToolbar and NSTabView
  • Next by thread: Re: understanding conversions between CF and NS datatypes
  • Index(es):
    • Date
    • Thread