Lists

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

Re: Cocoa Drawing

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

Re: Cocoa Drawing

Subject: Re: Cocoa Drawing
From: Alex Kac <email@hidden>
Date: Mon, 4 May 2009 12:57:00 -0500


On May 1, 2009, at 5:20 AM, DairyKnight wrote:

I'm trying to build a simple scribble program with Cocoa, and got some questions I couldn't solve. Hope someone here could help.

1. How can I perform a proper drawing in somewhere else rather than drawRect: ? Like the Win32 GetDC(HWND) and ReleaseDC. (Sorry I'd use lots of Win32 analogy, coz I've been a Win32 developer for quite a while.)

Create an ivar context, draw your stuff in there. Then call setNeedsDisplay on the view and draw the contents of the context in drawRect.

Even in Win32 you are supposed to do the drawing only in WM_PAINT, not just anytime you want.


Alex Kac - President and Founder
Web Information Solutions, Inc.

"If at first you don't succeed, skydiving is not for you."
-- Francis Roberts

_______________________________________________

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:  
  >Cocoa Drawing (From: DairyKnight <email@hidden>)




Prev by Date:
NSOutlineView with NSImage and NSStrings

Next by Date:
Re: Crashing resetting or releasing an NSManagedObjectContext

Previous by thread:
Cocoa Drawing

Next by thread:
Re: Cocoa Drawing

Index(es):

Date
Thread

References:
	>Cocoa Drawing (From: DairyKnight <email@hidden>)