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Cocoa in a Nutshell by James Duncan Davidson, Michael Beam

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Name

NSBitmapImageRep — Mac OS X 10.0

Synopsis

This subclass of NSImageRep represents bitmapped raster images. NSBitmapImageRep is able to read and write image data in many of the popular bitmap image data formats: TIFF, JPEG, Windows Bitmap, PNG, as well as raw data. This class allows applications to create bitmap image buffers that can be manipulated programmatically, and is thus useful for image manipulation and filtering applications. To obtain a pointer to the image data buffer, use the method bitmapData. If the image data is arranged in planes, rather than interlaced, use the method getBitmapDataPlanes:, which returns a C array of pointers to the image’s data planes. NSBitmapImageRep provides a number of methods for discovering characteristics of the image data, such as the buffer size, pixel and sample formats, and more. See Chapter 4 for more information on how Cocoa handles images.

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@interface NSBitmapImageRep : NSImageRep
                                  // Initializers
   - (id)initForIncrementalLoad;
   - (id)initWithBitmapDataPlanes:(unsigned char **)planes 
                                 pixelsWide:(int)width 
                                 pixelsHigh:(int)height
                                 bitsPerSample:(int)bps 
                                 samplesPerPixel:(int)spp 
                                 hasAlpha:(BOOL)alpha 
                                 isPlanar:(BOOL)isPlanar
                                 colorSpaceName:(NSString *)colorSpaceName 
                                 bytesPerRow:(int)rBytes 
                                 bitsPerPixel:(int)pBits;
   - (id)initWithData:(NSData *)tiffData;
   - (id)initWithFocusedViewRect:(NSRect)rect;
                                  // Accessor Methods
 - (void) ...

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