| 摘要 |
The present invention enables a free line, in accordance with a touch input, to be displayed on a touch screen first, when a user applies the touch input onto the touch screen, wherein: the free line is removed if an additional touch input is not applied within a selected critical time; and the displaying of the free line is maintained if an additional touch input having predetermined confirmed gesture information is applied onto the touch screen, and provides support such that a user can confirm a free line inputted by the user only when the user applies the correct touch input onto a touch screen, thereby providing user convenience. |
