next up previous contents index
Next: Write descriptor value(s) Up: Descriptors Previous: Descriptors

Read descriptor value(s)

Obtaining values from a descriptor of a frame is done via a call to STDRDC (SCDRDC) for character descriptors, STDRDD (SCDRDD) for double precision descriptors, STDRDI (SCDRDI) for integer descriptors and STDRDR (SCDRDR) for real descriptors.

The interfaces dealing with character descriptors have an additional parameter specifying the number of bytes (elements) per character array element. For the other descriptor types this is a fixed number:
Four bytes per element are used with integer and real descriptors and eight bytes with double precision descriptors.

Send comments to
Last update: 1998-10-23