NAME

       PX_get_data_graphic — Get graphic data field

SYNOPSIS

       #include <paradox.h>

       int PX_get_data_graphic(pxdoc_t *pxdoc, char *data, int len, int *mod, int *blobsize, char **value)

DESCRIPTION

       Reads a graphic data field. This function may be used only for blobs of type pxfGraphic.

       data  points  to the start of the data field in the record. It must be calculated by summing up all field
       length before the field to operate on and add it to the base pointer of the record. You should  use  this
       function instead of accessing the data directly.

       PX_get_data_graphic returns blob data stored in the record itself, or in an MB files which must have been
       set with PX_set_blob_file(3).

       The  function  allocates  memory  for  the  data  returned  in *value. This memory has to be freed by the
       application.  The amount of memory for the blob is returned in *blobsize.  *mod  returns  the  so  called
       modification  number  of the blob which can often be used as an unique id for creating file names, if the
       data is saved in a file.

              Note:

              This function is deprecated and obsolete if PX_retrieve_record(3) is used.

RETURN VALUE

       Returns 0 if the value is NULL, -1 in case of an error and 1 otherwise.

SEE ALSO

       PX_get_data_blob(3), PX_get_data_bcd(3), PX_get_data_byte(3), PX_get_data_long(3),  PX_get_data_short(3),
       PX_get_data_double(3), PX_get_data_byte(3), PX_get_data_bytes(3)

AUTHOR

       This manual page was written by Uwe Steinmann uwe@steinmann.cx.

                                                                                          PX_GET_DATA_GRAPHIC(3)