Abstract: An electronic device having an input control application is disclosed. The input control application is used for enabling the electronic device to execute the following actions: obtaining a member group comprising members lined up orderly and a member as a selection member; pressing a key to generate a first signal for excluding members after the selection member, then determining if only one member left in the member group, if “No”, determining the member of the member group in the middle as the new selection member, if “Yes”, executing the input operation; pressing another key to generate a second signal for excluding the members before the current selection member, then determining if only one last member in the current member group, if No”, determining the member of the member group in the middle as the new selection member, if “Yes”, executing the input operation.

Abstract: An electronic device having an input control application is disclosed. The input control application is used for enabling the electronic device to execute the following actions: obtaining a member group comprising members lined up orderly and a member as a selection member; pressing a key to generate a first signal for excluding members after the selection member, then determining if only one member left in the member group, if “No”, determining the member of the member group in the middle as the new selection member, if “Yes”, executing the input operation; pressing another key to generate a second signal for excluding the members before the current selection member, then determining if only one last member in the current member group, if No”, determining the member of the member group in the middle as the new selection member, if “Yes”, executing the input operation.

Abstract: The present invention discloses a method to define a drafting range based on a curve with a plurality of points drawn by a user. A writing character is shown in a display based on the drafting range. The method includes the following steps. The first step is to gather coordinate positions of points. Then, these coordinate positions are compared to each other to get a maximum coordinate position and a minimum coordinate position. A drafting range is generated based on the maximum coordinate position and the minimum coordinate position. Next, the drafting range is corresponded to a display range of a display to define a ratio of the drafting range to the display range. Finally, the writing character is adjusted and displays in the display based on the ratio.