Lists

Open Menu Close Menu

Terms and Conditions
Lists hosted on this site
Email the Postmaster
Tips for posting to public mailing lists

Re: altering an NSImage by access to pixels

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: altering an NSImage by access to pixels

Subject: Re: altering an NSImage by access to pixels
From: James Walker <email@hidden>
Date: Thu, 18 Aug 2011 17:56:47 -0700

On 8/18/2011 4:23 PM, David Duncan wrote:

On Aug 18, 2011, at 4:16 PM, James Walker wrote:
Let's say I have an NSImage that contains some representation other than an NSBitmapImageRep, and I want to play with the pixel values.
Create your NSBitmapImageRep
Create a NSGraphicsContext from that rep and make it current
Draw your NSImageRep using -draw (or -drawAtPoint: or -drawInRect:) to draw into the current graphics context.
You now have an NSBitmapImageRep with your image contents.


Thanks!

--
  James W. Walker, Innoventive Software LLC
  <http://www.frameforge3d.com/>
_______________________________________________

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



References:  
  >altering an NSImage by access to pixels (From: James Walker <email@hidden>)
  >Re: altering an NSImage by access to pixels (From: David Duncan <email@hidden>)




Prev by Date:
Printing

Next by Date:
Re: Printing

Previous by thread:
Re: altering an NSImage by access to pixels

Next by thread:
Lion - CopiesOnScroll Bug with table view

Index(es):

Date
Thread