Chapter 3 Application Development Information 3 59 Level Program name Specification Language C++ C# VB.NET VB6.0 Basic Step 5. Call-back process When the condition of the printer changes, the printer can cause actions to occur in the application, and executes error handling. — — Complete basic features The program from Step 1 to 5 Advanced Monitoring the printer status and controlling print jobs Cancels a print job when a paper end is detected. — — DEVMODE Executes a 90-degree rotation or changes the number of copies in the application. — — Changes the number of copies in the application. — — Obtaining the print com- pletion Acquires the print completion.