Method of controlling resolution of digital data broadcasting receiver, apparatus therefor, and digital data broadcasting receiver using the same

An apparatus for controlling a resolution of a graphic plane on which an application is displayed in a digital data broadcasting receiver, the apparatus comprising:

• a user resolution manager which provides a list of resolutions available on the graphic plane;
• a resolution changer which changes the resolution of the graphic plane according to a resolution selected from the resolution list by a user;
• a display unit which displays the application on the graphic plane, the resolution of which has been changed;
• and
• a use right manager which manages reservation and restoration of a use right of a graphics device managing the graphic plane,
• wherein the user resolution manager requests the use right manager to grant the use right of the graphics device according to the selected resolution and if the graphics device is available, the use right of the graphics device is obtained by the user resolution manager, and other applications are prevented from changing the resolution of the graphic plane.

A method of controlling a resolution of a graphic plane on which an application is displayed in a digital data broadcasting receiver, the method comprising:

• receiving the application;
• determining whether resolution of the graphic plane can be changed into resolution of the application selected by a user;
• displaying the application on the graphic plane when the resolution of the graphic plane can be changed into the resolution of the application,
• wherein determining whether the resolution of the graphic plane can be changed into the resolution of the application comprises determining whether a use right of a graphics device managing the graphic plane can be obtained and if the graphics device is available, the use right of the graphics device is obtained, and other applications are prevented from changing the resolution of the graphic plane.