Re: Saving PNG files from NSImage
Re: Saving PNG files from NSImage
- Subject: Re: Saving PNG files from NSImage
- From: Martin Linklater <email@hidden>
- Date: Mon, 29 Aug 2011 14:11:29 +0100
Thanks Marco. When I call representationUsingType I get this:
-[NSCGImageSnapshotRep representationUsingType:properties:]: unrecognized selector sent to instance 0x100220610
2011-08-29 14:08:16.161 TexLifter[69386:407] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCGImageSnapshotRep representationUsingType:properties:]: unrecognized selector sent to instance 0x100220610'
Here is my full code:
NSSize outputImageSize;
outputImageSize.width = dimension;
outputImageSize.height = dimension;
self.outputImage = [[NSImage alloc] initWithSize:outputImageSize];
// Do a load of -[image drawAtPoint:fromRect:operation:fraction] calls to composite
NSArray* reps = self.outputImage.representations;
NSBitmapImageRep* rep = [reps objectAtIndex:0];
NSData* data = [rep representationUsingType:NSPNGFileType properties:nil];
*ERROR AS ABOVE*
8(
On 29 Aug 2011, at 13:59, Marco Tabini wrote:
> Hi Martin—
>
> On 2011-08-29, at 8:18 AM, Martin Linklater wrote:
>
>> Can anyone point me in the right direction as to how to save my NSImage to a PNG file ? Or some documentation which actually describes how to convert the NSCGImageSnapshotRep into something I can save out ? I've spent a few hours on this now and I can't believe there isn't an easy solution I'm missing.
>
>
> Take a look here: http://stackoverflow.com/questions/4438802/nscgimagesnapshotrep-how-get-bitmapdata
>
> HTH,
>
>
> —Mt.
>
> --
> Phone: +1-416-630-6202 x.666
> Twitter: @mtabini
>
>
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