typedef struct _DgFileHandler {

DgUInt32 ( *GetCapabilities ) (

void

);
const char * ( *GetSuffixList ) (

void

);
DgError ( *ReadImage ) (

DgContext *context,
DgImage *image,
FILE *fp

);
DgError ( *WriteImage ) (

DgContext *context,
DgImage *image,
FILE *fp

);

} DgFileHandler;

Summary

Abstract interface for image file i/o. Reads and writes image files in a particular format.
GetCapabilities return a set of flags describing the general capabilities of the handler
GetSuffixList return the set of filename suffixes associated with files that can be manipulated by the handler. each suffix contains the leading period, and suffixes are separated by whitespace
ReadImage read an image from an open file
WriteImage write an image to an open file

References

dgBmpHandler
DgGetFileHandler
dgTiffHandler