Abstract: Disclosed are methods and apparatuses for window display, and methods and apparatuses for touch-operating an application. The method for window display enables displaying a window in an appropriate position for convenient use. The method include displaying a main menu including at least one menu item, determining a first window corresponding to a first menu item in the main menu based on a first input operation on the first menu item, determining a position parameter and/or a direction parameter for the first window, and displaying the first window according to the position parameter and/or the direction parameter. The present application also discloses an apparatus for implementing the method.

Abstract: The present invention provides an optical disc drive and computer. The optical disc drive comprises: a tray for laying a disc therein; a drive means connected to the tray; and a control circuit for connecting the drive means and a power supply of a computer connected to the optical disc drive, wherein the drive means establishes an electrical connection with the power supply via the control circuit. The control circuit comprises: a determination unit for determining whether a optical disc drive power-off condition is valid and acquiring a determination result; and a power supply control unit for transmitting a power-off instruction to a computer host when the determination result indicates that the optical disc drive power-off condition is valid. The power-off instruction is configured for instructing the computer to control the power supply to stop supplying power to the control circuit and the drive means.