Calculate a CRC for a block of data
long PtCRC( const char *buffer, int nbytes );
This function generates a 32-bit cyclic redundancy check or CRC on the nbytes of data pointed to by buffer.
|We recommend that bitmaps and images have a CRC on the image data and the palette. This CRC is used extensively by phrelay (see the QNX Neutrino Utilities Reference) to cache images.|
You can call PtCRCValue() to calculate a running CRC checksum.
The cyclic redundancy check.
“Images” in the Raw Drawing and Animation chapter of the Photon Programmer's Guide