Explicitly loads an Option Programming Interface (OPI) optional module.

option_name—(string) The name of the Option to be loaded.

Load_Now—If specified and nonzero, all the procedures/functions from the Option are loaded. By default, the procedures/functions from the Option are loaded when they are referenced for the first time.

The LOAD_OPTION procedure explicitly loads an OPI option. OPI options can be loaded explicitly by any PV‑WAVE user. These optional modules can be written in C or FORTRAN, and can contain new system functions or other primitives. For detailed information on creating OPI options, see the PV‑WAVE Application Developer’s Guide.

LOAD_OPTION, 'image' 

; No message is printed when the image option is loaded.

; To check that the option was loaded successfully call:

SHOW_OPTIONS

OPTION_IS_LOADED, SHOW_OPTIONS, UNLOAD_OPTION