Issues RETURNs from nested routines. Used primarily to recover from errors in user-written procedures and functions.
When an error occurs in a procedure or function, control is left within that routine unless it contains special error handling instructions. Issuing the RETALL command causes control to return to the main level of PV-WAVE.
NOTE: RETALL stops all currently running WAVE Widgets applications. Typing RETALL will often make "disappearing variables" reappear.
For more information, see Error Handling in Procedures in Chapter 9 of the PV-WAVE Programmer's Guide.
