//////////

//

//  File:       MyQuickDrawView.h

//

//  Contains:   Interface file for our MyQuickDrawView class.

//

//  Written by: Apple Developer Technical Support

//

//  Copyright:  © 2002 by Apple Computer, Inc., all rights reserved.

//

//  Change History (most recent first):

//     

//     <1>      5/20/02 srk     first file

//

//////////

/*

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 USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

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*/

#import <Cocoa/Cocoa.h>

#import <QuickTime/QuickTime.h>

@interface MyQuickDrawView : NSQuickDrawView

{

    NSTimer             *gMyTimer;      // our timer for idling the sequence grabber

    SeqGrabComponent    gSeqGrab;       // the sequence grabber component

    SGChannel           gSGChanVideo;   // the sequence grabber channel component

    GWorldPtr           gPGWorld;       // gworld used for decompression

    Rect                gBoundsRect;    // rect we are drawing into

    ImageSequence       gDecomSeq;      // unique identifier for our decompression sequence

    ImageSequence       gDrawSeq;       // unique identifier for our draw sequence

    long                gImageSize;     // size of the image in our buffer to draw

}

-(ComponentResult)setupDecomp;

-(ComponentResult)decompToWindow;

-(void)doDecomp:(NSRect)rect;

-(void)drawRect:(NSRect)rect;

-(void) sgIdleTimer:(id)sender;

-(OSErr) doSeqGrab:(NSRect)grabRect;

-(GWorldPtr)gworld;

-(ImageSequence)decomSeq;

-(ImageSequence)drawSeq;

-(SGChannel)sgChanVideo;

-(Rect)boundsRect;

-(void)endGrab;

@end

pascal OSErr mySGDataProc(SGChannel c, 

                            Ptr p,

                            long len,

                            long *offset,

                            long chRefCon,

                            TimeValue time,

                            short writeType, 

                            long refCon);

void saveQDViewObjectForCallback(void *theObject);