Re: Punching a hole in an NSImage
Re: Punching a hole in an NSImage
- Subject: Re: Punching a hole in an NSImage
- From: Ben Lachman <email@hidden>
- Date: Thu, 2 Mar 2006 11:03:03 -0500
Got it. I was forgetting to transform my rect from view coords to
the local image coords, so I was punch the whole somewhere outside
the actual image bounds. Thanks for the helps, it works like a charm
now.
->Ben
--
The user's going to pick dancing pigs over security every time. —
Bruce Schneier
On Mar 2, 2006, at 10:59 AM, Guy English wrote:
Hmmm ... Source Over should do it.
How are you rendering it? If it's in a custom view make sure the
view returns NO from isOpaque - also remember Cocoa doesn't make
any promises about overlapping views.
On Thursday, March 02, 2006, at 10:55AM, Ben Lachman
<email@hidden> wrote:
This was what I was doing, without success. So maybe it is something
else... when I am passing compositeToPoint: in drawRect what
operation should I use?
->Ben
On Mar 2, 2006, at 9:51 AM, Guy English wrote:
This will make a transparent hole in your image:
[image lockFocus];
[[NSColor clearColor] set];
NSRectFill( rectOfHoleThroughImage );
[image unlockFocus];
Hope that helps,
Guy
On 3/2/06, Ben Lachman <email@hidden> wrote:
What's the easiest way to cut a rect out of an NSImage so that the
view that is behind the image can show though? I've looked at the
Cropped Image sample code but can't see how that applies to what I
want to do.
Thanks,
->Ben
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Ben Lachman ? email@hidden
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