News Overview Download Order F.A.Q. More info Support Links Welcome QuickStart ActiveX Control C++ Wrapper •J2K_Image open easyDecode selectTiles getMetaData decode close J2K_Frames open getFrames getFrame operators close API Reference General getVersion getLastError getErrorStr getLastErrorStr Unlock Open / Close Open Close Info GetInfo GetInfoEx GetResolutions GetResDimensions GetMetaData Decoding EasyDecode SelectTiles Decode Cancel Debug StartLogging StopLogging

J2K_Image class This class represents a J2K image. Members: width int Width of the image (in pixels). height int Height of the image (in pixels). components int The number of components in the image. hTiles int The number of tiles in horizontal direction. vTiles int The number of tiles in vertical direction. fileType int The image file type (0 = Lossy J2K, 1 = Lossy JP2, 2 = Lossless J2K, 3 = Lossless JP2). precision int Component precision in bits. All components must have the same precision. buffer unsigned char* Pointer to a buffer, allocated either by user or by J2K_Image itself. The resulting image will be stored in this buffer. size int Size of the buffer. If you allocate the buffer manually, you need to place the correct value into this member. pitch int Buffer pitch - distance, in bytes, to the start of next line. Again, if you allocate the buffer yourself, you need to set up this member as well. errStr const char * Error description string. Will be set in case of an error. Methods: J2K_Image::easyDecode() J2K_Image::open() J2K_Image::selectTiles() J2K_Image::getMetaData() J2K_Image::decode() J2K_Image::close() Notes 1. width, height, components, hTiles, vTiles and fileType are set after a successful J2K_Image::open() call. 2. buffer, size and pitch are set after a successful J2K_Image::decode() or J2K_Image::easyDecode() call.

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