Grahpic processing device and method for updating grahpic edting screen

PURPOSE: A graphic processing apparatus to update a graphic editing screen and a method thereof are provided to update and display the graphic editing screen rapidly by using small storage space. CONSTITUTION: An object information calculation part (40) calculates object information about an object inputted in a graphic screen, and an object area calculation part (30) calculates the object area information about the object. A control part (10) stores object management information making the object information correspond to the object area information, and updates the object management information about the edited object during object editing, and updates the graphic screen by using the updated object management information. The object information is an object ID about the inputted object. [Reference numerals] (10) Control part; (20) Input part; (30) Object area calculation part; (40) Object information calculation part; (50) Storage part; (60) Display part