Saving/Restoring a Session

HEAP_NOSAVE - Used to clear the save attribute of pointer or object heap variables.

HEAP_SAVE - Used to query whether a pointer or object heap variable is savable. It can also be used to change the heap variable save attribute.

IDL_Savefile - Object that provides complete query and restore capabilities for IDL SAVE files.

JOURNAL - Logs IDL commands to a file.IDL.

RESTORE - Restores IDL variables and routines in an IDL SAVE file.

SAVE - Saves variables, system variables, and IDL routines in a file for later use.