Next: , Previous: geomview-version, Up: GCL Reference

7.2.52 hdefine

(hdefine geometry|camera|window|appearance|image|transform|ntransform name value)
Sets the value of a handle of a given type.
            (hdefine  <type>  <name>  <value>)

is generally equivalent to

            (read <type>  { define <name> <value> })

except that the assignment is done when hdefine is executed, (possibly not at all if inside a conditional statement), while the read ... define performs assignment as soon as the text is read. See References. See (read ...). See (hdelete ...).