During incremental loading, this method is called repeatedly to inform the delegate that more of the image data is available.
Original signature is '- (void)image:(NSImage *)image didLoadPartOfRepresentation:(NSImageRep *)rep withValidRows:(NSInteger)rows'
Available in Mac OS X v10.2 and later.

C# | Visual Basic | Visual C++ |
void ImageDidLoadPartOfRepresentationWithValidRows( NSImage image, NSImageRep rep, NSInteger rows )
Sub ImageDidLoadPartOfRepresentationWithValidRows ( _ image As NSImage, _ rep As NSImageRep, _ rows As NSInteger _ )
void ImageDidLoadPartOfRepresentationWithValidRows( NSImage^ image, NSImageRep^ rep, NSInteger rows )

- image (NSImage)
- The image object whose contents are being loaded.
- rep (NSImageRep)
- The image representation object that is receiving and processing the image data.
- rows (NSInteger)
- The number of rows of data that have been decompressed.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)