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)