On Tue, Aug 19, 2008 at 2:33 PM, Carmen Cerino Jr. <[EMAIL PROTECTED]> wrote: > Sorry about the sketchy details. Basically I have a wrapper class for the > Sequence Grabber, and I want to setup a delegate for the decompression > callback. > > This is where I use the respondsToSelector method: > static void SGVideoDecompTrackingCallback( > void *decompressionTrackingRefCon, > OSStatus result, > ICMDecompressionTrackingFlags decompressionTrackingFlags, > CVPixelBufferRef pixelBuffer, > TimeValue64 displayTime, > TimeValue64 displayDuration, > ICMValidTimeFlags validTimeFlags, > void *reserved, > void *sourceFrameRefCon ) > { > #pragma unused(reserved) > #pragma unused(sourceFrameRefCon) > > SGVideo* sgVideoChan = (SGVideo*)decompressionTrackingRefCon; > id _delegate = sgVideoChan.delegate; > > if (result == noErr){ > > if ([_delegate respondsToSelector: @selector(SGDecompDataProc:)]){ > > [_delegate SGDecompDataProc:pixelBuffer > trackingFlags:decompressionTrackingFlags > displayTime:displayTime > displayDuration:displayDuration > validTimeFlags:validTimeFlags]; > } > } > } > > > Header file where the function I am checking is prototyped: > > @interface VideoController : NSObject { > SeqGrab* mSeqGrab; > SGVideo* mVideoChan; > IBOutlet SampleCIView* mPreview; > } > > -(void)SGDecompDataProc: (CVPixelBufferRef)pixelBuffer > trackingFlags:(ICMDecompressionTrackingFlags)decompressionTrackingFlags > displayTime:(TimeValue64)displayTime > displayDuration:(TimeValue64)displayDuration > validTimeFlags:(ICMValidTimeFlags)validTimeFlags; > > > @end > > Please let me know if you need to see anything else. Once again I apologize > for the sketchy details. > > Thank you all for your help!
Heya - that's not the entire selector. You want to use : if ([_delegate respondsToSelector: @selector(SGDecompDataProc: trackingFlags: displayTime: displayDuration: validTimeFlags:)]) { ... } _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]