JP2007286964A - Input device and program for controlling layout of keys - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input device capable of performing changes of a layout of keys displayed on a touch panel by a user without spending an additional time and an effort. <P>SOLUTION: A display section 21 displays the keys for receiving an input operation of the user on a screen. A detection section 22 detects the pressing down and its release of the key displayed on the display section 21. A display configuration change section 23 changes a display configuration of the key in response to a period from a point of time to detect the release of the key with the detection section 22 to a point of time to detect the pressing down of the key with the detection section 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an input device, a control method, and a program that can change the layout of keys displayed on a touch panel.

  In recent years, a touch panel that combines a display monitor and a matrix switch can operate a device by pressing the display on the screen with a finger or a special pen, so that the operation target displayed on the display can be directly input. Can do. Such touch panels are also used in, for example, bank ATMs, station ticket machines, node personal computers, PDAs, and the like.

  A device equipped with a touch panel displays a key image of various operation keys by providing a touch panel on the display screen, and the touch panel detects that the input instruction area corresponding to the display area of the specific key image has been instructed by the user. Thus, data assigned to the key image is input.

  Conventionally, the keys displayed on the screen of the operation panel have a fixed size determined in consideration of general usage on the manufacturer side. When displaying multiple keys, the display size can be changed depending on the function of each key. However, it is difficult to increase or decrease the size of the same key with the same size, and it is difficult to realize operability corresponding to individual differences such as user's habit and preference. It was.

In order to solve this problem, Japanese Patent Laid-Open No. 2001-75691 discloses a data processing apparatus and storage for storing key setting information in advance and changing the layout such as the key display position and size based on the input information. A medium is disclosed.
JP 2001-75691 A

  However, in the layout changing method described in Patent Document 1, for example, an application for layout editing is started, and when the user inputs various data necessary for the application to edit the key layout, the key is changed in advance. The layout has been changed. That is, in order to change the key layout, the user needs to separately perform an input operation for changing the layout in addition to the input operation of pressing the touch panel to use various services.

  The present invention has been made in view of the above circumstances, and an input device that allows a user to change the layout of keys displayed on a touch panel without extra effort and a program for controlling the layout of keys. The purpose is to provide.

  An input device of the present invention is an input device that displays a key for accepting an input operation from a user on a screen, and includes a display unit that displays the key, and a press and release by the key displayed on the display unit. And at least a display area specified by the key and a period of time of the key according to a period from when the detection unit detects release by the key to when the detection unit detects pressing by the key. A display form changing unit that changes the display form of the key, including the arrangement position.

  With this configuration, by changing the key display form according to the time from the release of a key to the press of a key, it is possible to change the key display form so that the user can easily press the key. An improvement in operation speed can be realized.

  The input device of the present invention is an input device that displays a key for accepting an input operation from a user on a screen, and is specified by a display unit that displays the key and a key displayed on the display unit. In the vicinity of the display area, according to the positional relationship between a position specifying unit that specifies a position touched by the user to press the key, and a predetermined point in the display area and the position specified by the position specifying unit And a display form changing unit for changing the display form of the key including at least the display area specified by the key and the arrangement position of the key.

  With this configuration, the key display area can be changed by changing the key display form according to the positional relationship between a predetermined point in the specific display area of the screen displaying the key and the position specified by the position specifying unit. Pressing out of range to reduce erroneous operations reduces operability. In addition, the area operated by the user can be kept compact and the operation speed can be improved.

  Further, the input device of the present invention is an input device for displaying a key for accepting an input operation from a user on a screen, the display unit displaying the key, and pressing and releasing by the key displayed on the display unit. A detection unit for detecting the position, a position specifying unit for specifying a position touched by the user to press the key in the vicinity of the display area specified by the key displayed on the display unit, and the detection unit using the key Based on the period from the time when the opening is detected to the time when the detection unit detects that the key is pressed, and the positional relationship between the predetermined point in the display area and the position specified by the position specifying unit A display form changing unit for changing the display form of the key, including at least the display area specified by the key and the arrangement position of the key. It is.

  With this configuration, the time from the release of a key to the pressing of a key and the position of the key according to the positional relationship between a predetermined point in a specific display area of the screen displaying the key and the position specified by the position specifying unit. By changing the display mode, it is possible to change the key display mode so that the user can easily press it. At the same time, it reduces the erroneous operation by pressing outside the key display area, leading to improved operability. . In addition, the area operated by the user can be kept compact and the operation speed can be improved.

  Furthermore, in the input device of the present invention, when there are a plurality of keys, the display unit displays a plurality of keys, and the detection unit detects pressing and releasing for each key displayed on the display unit, The display form changing unit is configured to detect from when the detection unit detects the release of any one of the plurality of keys until when the detection unit detects the pressing of any one of the plurality of keys. Depending on the period, the display mode of the key including at least the display area specified by the key and the arrangement position of the key is changed.

  With this configuration, even when there are a plurality of keys, from the time when the opening of any one of the plurality of keys is detected to the time when the detection unit detects the pressing of any one of the plurality of keys. By changing the key display form according to the period, the key display form can be changed so that the user can easily press the key display form.

  Furthermore, in the input device according to the present invention, when there are a plurality of keys, the display unit displays a plurality of keys, and the position specifying unit is a display area specified by each of the plurality of keys displayed on the display unit. In the vicinity, the position touched by the user to press the key is specified, and the display form changing unit specifies the predetermined point in the display area and the position specifying unit in each of the plurality of keys. The display mode of the key including at least the display area specified by the key and the arrangement position of the key is changed according to the positional relationship with the position.

  With this configuration, even when there are a plurality of keys, the display mode of the keys is changed according to the positional relationship between a predetermined point in the display area and the position specified by the position specifying unit in each of the plurality of keys. By changing, it is possible to reduce an erroneous operation by pressing outside the key display area, leading to an improvement in operability. In addition, the area operated by the user can be kept compact and the operation speed can be improved.

  Furthermore, in the input device of the present invention, when there are a plurality of keys, the display unit displays a plurality of keys, and the detection unit detects pressing and releasing for each key displayed on the display unit, The position specifying unit specifies a position touched by a user to press the key in the vicinity of a display area specified by each of the plurality of keys displayed on the display unit, and the display form changing unit is configured to detect the detection A period from a time point at which release of any one of the plurality of keys is detected by the unit to a time point at which pressing of any one of the plurality of keys is detected by the detection unit, and at each of the plurality of keys And at least the display area specified by the key and the arrangement of the key based on the positional relationship between the predetermined point in the display area and the position specified by the position specifying unit. Position including, changing the display form of the key.

  With this configuration, even when there are a plurality of keys, the time from the opening of a certain key to the pressing of a certain key and the specified one point in the specific display area of the screen displaying the key and the position specifying unit are specified. By changing the key display form according to the positional relationship with the position, it is possible to change the key display form so that the user can easily press it, and at the same time press the outside of the key display area and perform an erroneous operation. Will be reduced and the operability will be improved. In addition, the area operated by the user can be kept compact and the operation speed can be improved.

  The program for controlling the layout of keys according to the present invention is a program for causing a computer to control the layout of keys displayed on a screen in order to accept an input operation from a user. A detection step of detecting a release, a detection step of detecting a press by a key displayed on the screen, and a time point when the release by the key is detected by the release detection step to a time point by which the press by the key is detected by the press detection step. And a display form changing step for changing the display form of the key including at least the display area specified by the key and the arrangement position of the key.

  The key layout control program of the present invention is a program for causing a computer to control the key layout displayed on the screen in order to accept an input operation from the user. In the vicinity of the specified display area, a position specifying step for specifying a position touched by the user to press the key, and a positional relationship between a predetermined point in the display area and the position specified by the position specifying unit And a display form changing step for changing the display form of the key including at least the display area specified by the key and the arrangement position of the key.

  According to the input device and the program of the present invention, since the input operation for pressing the touch panel to use various services also serves as the input operation for changing the layout of the keys displayed on the touch panel, There is no need to perform an input operation for changing the layout. For this reason, the user can change the layout of the keys displayed on the touch panel without extra effort.

  Hereinafter, an input device according to an embodiment of the present invention will be described with reference to the drawings.

First, the structure of the touch panel will be described. FIG. 1 is a diagram illustrating the structure of a touch panel.
In FIG. 1, the touch section detection circuit 2 detects the presence / absence of a finger contact with respect to a section on the segmented touch panel 1, and determines the coordinates Pti = P (xi, yi) of the touch section position with the contact. Output sequentially. Here, since there is a certain area on the contact surface of the finger, there are generally a plurality of sections in contact with the finger, and in this case, the touch section detection circuit 2 sequentially outputs the touch section position coordinates. The input position information determination circuit 3 uses a plurality of touch section position coordinates output from the touch section detection circuit 2 as basic data, and determines the coordinates of one point as input position information by calculation with a position coefficient based on statistical data. To do. Accordingly, for example, when a touch panel is used as a keyboard of a node personal computer, when the user presses the “A” key with a finger, the touch section detection circuit 2 causes the coordinates of a plurality of touch section positions with the touch, that is, “ The coordinates of a plurality of touch section positions corresponding to the key “A” are sequentially output, and the input position information determination circuit 3 outputs the coordinates of the plurality of touch section positions corresponding to the key “A” from the touch section detection circuit 2. As basic data, the coordinates of one point corresponding to the key “A” are determined by calculation with a position coefficient based on statistical data. The detected position information is processed and transmitted to the personal computer, and the operation designated by the user, here, the input operation A is performed by personal computer control.

  As described above, since one key is composed of a plurality of sections, even when the same one key is pressed, there is a possibility that the section touched by the user is different. For this reason, when the user presses a certain key a plurality of times, the touch panel can recognize that coordinates serving as a contact position for each press are distributed in the vicinity of the key. If one section is assigned to one key, if the user presses a key multiple times, the coordinates of the contact position for each press are all the same, and the vicinity of a key Cannot recognize that it is distributed.

  In the following, a first embodiment in which the key layout is automatically changed based on the time from when a certain key is released until a certain key is pressed, and based on each position where the displayed key is touched. A second embodiment in which the key layout is automatically changed will be described.

(First embodiment)
The present embodiment is an example in which the key pitch and the key size are automatically changed based on the time from when a certain key is released to when a certain key is pressed. Here, the key pitch refers to the distance between the end of one key closest to the end of the other key in two adjacent keys. The key size indicates the area (or vertical or horizontal length) of one key.

  FIG. 2 is a block diagram showing the configuration of the input device of this embodiment. In FIG. 2, the input device 20 includes a display unit 21 that displays a key for accepting an input operation from the user on a screen, a detection unit 22 that detects pressing and release by the key displayed on the display unit 21, and a detection The display mode changing unit 23 is configured to change the key display mode according to the period from the time point when the key 22 is detected by the unit 22 until the time point when the detection unit 22 detects the key press.

  FIG. 3 is a flowchart showing an operation of automatically changing the key pitch and the key size when an input operation is performed using the input device 20 of the present embodiment when there are a plurality of keys. First, the detection unit 22 detects whether an arbitrary key has been pressed (step S301). If it has not been detected that an arbitrary key has been pressed, step S301 is repeatedly executed to wait for an arbitrary key to be pressed. .

  On the other hand, if it is detected in step S301 that an arbitrary key is pressed, the detection unit 22 detects whether the pressed key is released (step S302), and cannot detect that the pressed key is released. If it is, step S302 is repeatedly executed to wait for the pressed key to be released.

  On the other hand, when it is detected in step S302 that the pressed key is released, the detection unit 22 notifies the display form changing unit 23 that the pressed key is released, and the display form changing unit 23 notifies the notification. When it is received, the time when the pressed key is released is stored (step S303).

  After the detection unit 22 detects that the pressed key has been released, it detects again whether any key has been pressed (step S304), and if it has not been detected that the arbitrary key has been pressed, In S302, it is determined whether the time since the key was released has exceeded a specified time (step S305). If it is determined that the specified time has been exceeded, this operation is considered to have been completed with only one press and release. Then, the process returns to step S301 to wait for the next operation.

  On the other hand, if it is determined in step S305 that the specified time has not been exceeded, the process returns to step S304 and waits for pressing of an arbitrary key.

  In step S304, when the detection unit 22 detects that an arbitrary key has been pressed, the display mode changing unit 23 is notified that the arbitrary key has been pressed, and the display mode changing unit 23 receives the notification. A time interval from the stored last release time and the current pressed time to the last pressed time is calculated (step S306), and an average value of the time intervals is further calculated (step S307). .

  After the detection unit 22 detects that an arbitrary key has been pressed, it detects whether the pressed key has been released (step S308). If it cannot be detected that the pressed key has been released, step S308 is performed. Is repeatedly executed, and waiting for the pressed key to be released.

  On the other hand, when it is detected in step S308 that the pressed key is released, the detection unit 22 notifies the display form changing unit 23 that the pressed key is released, and the display form changing unit 23 notifies the notification. When it is received, the time when the pressed key is released is stored (step S309).

  After detecting that the key pressed by the detection unit 22 is released, it is detected again whether any key is pressed (step S310). If it is not detected that any key is pressed, In S308, it is determined whether the time since the key was released exceeds a specified time (step S311). If it is determined that the specified time has not been exceeded, the process returns to step S310 and waits for any key to be pressed. .

  On the other hand, if it is detected in step S310 that an arbitrary key has been pressed, the process returns to step S306, and the time interval from the previous release time to the current press time from the previous release time to the current press time is set. calculate.

  On the other hand, if it is determined in step S311 that the specified time has been exceeded (that is, after that, it is considered that a series of operations including the latest key press and release has been completed), the display form changing unit 23 determines in step S307. It is determined whether or not the calculated average value of the time intervals is less than the lower threshold value (step S312). If the calculated average value of the time intervals is determined to be less than the lower threshold value, the key pitch and the key size are set small. In step S313, the key pitch and key size are actually reflected on the screen (step S316).

  If it is determined in step S312 that the calculated average value of the time intervals is equal to or greater than the lower threshold value, it is determined whether the calculated average value of the time intervals is equal to or greater than the upper threshold value (step S314). If it is determined that the average value is greater than or equal to the upper threshold, the key pitch and key size are set larger (step S315). Then, the key pitch and the key size are actually reflected on the screen (step S316).

  On the other hand, if it is determined in step S314 that the calculated average value of the time intervals is less than the upper threshold, the key pitch and key size are not changed, and the process returns to step S301 and waits for any key to be pressed.

  According to the input device of the first embodiment of the present invention as described above, it means that the time from the release of a certain key to the depression of a certain key is long (that is, the average value of the time interval is not less than the upper threshold value). If the key pitch and the key size are increased so that the user can easily press the key, and the time is shorter (that is, the average value of the time interval) Is less than the lower threshold value), the key pitch and the key size are reduced in order to improve the operation speed by keeping the area operated by the user compact. Thereby, the display mode of the key can be changed so that the user can easily press it, and the operation speed can be improved.

  Note that, in the input device according to the first embodiment of the present invention, whether or not a series of operations including an input operation of a key has been completed after an input operation of a key is as in the processing of steps S305 and S311. The determination is made based on whether or not the specified time has been exceeded. However, the present invention is not limited to this. For example, when it is detected that a foldable two-case mobile terminal that is frequently used in recent years is folded, It may be determined that the series of operations has been completed.

(Second Embodiment)
The present embodiment is an example in which the key layout is automatically changed based on each touched position with respect to the displayed key.

FIG. 4 is a block diagram showing the configuration of the input device according to the second embodiment of the present invention.
In FIG. 4, the input device 40 displays a key for accepting an input operation from the user on the screen, and presses the key in the vicinity of the display area specified by the key displayed on the display unit 41. Therefore, a display mode for changing the key display mode according to the positional relationship between the position specifying unit 42 for specifying the position touched by the user and the position specified by the predetermined one point in the display area and the position specifying unit 42 A change unit 43 is included.

  FIG. 5 is a flowchart showing an operation of automatically changing the key pitch and the key size when an input operation is performed using the input device 40 of the present embodiment. First, the position specifying unit 42 checks whether or not an arbitrary key has been pressed (step S501). If it has not been detected that the arbitrary key has been pressed, step S501 is repeatedly executed to press the arbitrary key. wait.

  On the other hand, if it is detected in step S501 that an arbitrary key has been pressed, the position specifying unit 42 specifies and acquires the position coordinate of the pressed key, and sends the acquired position coordinate to the display form changing unit 43 ( Step S502).

  When the display form changing unit 43 receives the position coordinate information from the position specifying unit 42, the deviation of the difference between the acquired coordinates and the center coordinates of the key is calculated (step S503), and the median value of the pressed coordinates is calculated (step S503). S504), an average value of the deviation is calculated (step S505).

FIG. 6 is a diagram illustrating an example of the center coordinates when there are a plurality of keys, the center coordinates of the keys, the position coordinates of the pressed keys, and the median value of the pressed coordinates.
In FIG. 6, a is a central coordinate indicating the central position of all keys when there are a plurality of keys, b is a central coordinate indicating the central position of one key among the plurality of keys, and c is a key pressed. And d is the median value of the coordinates of the position where the key is pressed a plurality of times. As shown in FIG. 6, in addition to detecting that the user has touched the key display area, the position specifying unit 42 can also detect that the user has touched an area further outside the key display area. In step S504, when the median value of the coordinates is calculated, the coordinates are calculated including the coordinates when the outside area is pressed.

  Subsequently, the position specifying unit 42 checks whether an arbitrary key has been pressed (step S506). If it is detected that an arbitrary key has been pressed, the process returns to step S502 to specify the position coordinate of the pressed key. get.

  On the other hand, if it is not detected in step S506 that an arbitrary key has been pressed, it is determined whether or not the prescribed time has been exceeded (step S507). If it is determined that the prescribed time has not been exceeded, step S506 is entered. Return and wait for any key to be pressed.

  On the other hand, if it is determined in step S507 that the specified time has been exceeded (that is, if a series of operations including the latest key press / release is not performed thereafter), the display form changing unit 43 performs step S505. In step S508, it is determined whether the average deviation calculated in step S is larger than the threshold. If it is determined that the average deviation is not larger than the threshold, the key pitch and size are not changed, and the process returns to step S501.

  On the other hand, when it is determined that the average value of the deviation is larger than the threshold value, the display form changing unit 43 determines whether the median value calculated in step S504 is close to the median coordinate (step S509), and the median value is converted to the median coordinate. If it is determined that the key is close, the key pitch and the key size are set small (step S510).

FIG. 7 is a diagram illustrating an example in which the key pitch is reduced and the key size is reduced.
In FIG. 7, since the median is close to the central coordinates, the display form changing unit 43 reduces the key pitch and changes the key size. Then, the process proceeds to step S512.

  On the other hand, if it is determined that the median is not close to the central coordinates, the key pitch and the key size are set large (step S511).

FIG. 8 is a diagram illustrating an example in which the key pitch is increased and the key size is increased.
In FIG. 8, since the median is not close to the central coordinates, the display form changing unit 43 increases the key pitch and greatly changes the key size.

  After step S510 or S511, the key pitch and key size are actually reflected on the screen (step S512), and the process returns to step S501 to wait for any key to be pressed.

  According to such an input device of the second embodiment of the present invention, after the layout change in which the contact positions, which are widely distributed so as to deviate from the display area of a certain key, increase the key pitch and size, the key is displayed. Since it falls within the area, it is possible to reduce an erroneous operation by pressing outside the range of the key display area, leading to an improvement in operability. On the other hand, the contact positions that were concentrated in one place for the display area of a key are now within the wide range of the display area of the key after the layout change with a reduced key pitch and size. The area operated by the user can be kept compact to improve the operation speed.

  In the above description, depending on the time from the release of a key until the key is pressed and the positional relationship between a predetermined point in the display area on the screen displaying the key and the position specified by the position specifying unit. The example of changing the key display form has been described separately, but may be combined.

  In the input device according to the second embodiment of the present invention, whether or not a series of operations including an input operation of a key has been completed after an input operation of a key is determined as in the process of step S507. The determination is made based on whether or not the time has been exceeded. However, the present invention is not limited to this. For example, when it is detected that a foldable two-housing portable terminal that is often used in recent years is folded, the above-described series is performed. It may be determined that the above operation has been completed.

  As described above, the input device and the program for controlling the key layout according to the present invention have an effect that the user can change the layout of the key displayed on the touch panel without extra effort. It is useful as an input device, a control method, a program, and the like that can change the layout of keys displayed on the touch panel.

Diagram showing the structure of the touch panel The block diagram which shows the structure of the input device of the 1st Embodiment of this invention. The flowchart figure which shows the operation | movement which changes the pitch of a key and the size of a key automatically, when performing input operation using the input device of the 1st Embodiment of this invention when there are two or more keys. The block diagram which shows the structure of the input device of the 2nd Embodiment of this invention. The flowchart figure which shows the operation | movement which changes the pitch of a key and the size of a key automatically, when performing input operation using the input device of the 2nd Embodiment of this invention when there are two or more keys. The figure which shows the example of the median value of the central coordinates when there are a plurality of keys, the central coordinates of the keys, the position coordinates of the pressed keys, and the pressed coordinates Figure showing an example of reducing the key pitch and key size Diagram showing an example of increasing the key pitch and increasing the key size

Explanation of symbols

1 Touch Panel 2 Touch Section Detection Circuit 3 Input Position Information Determination Circuit 3
20, 40 Input device 21, 41 Display unit 22 Detection unit 23, 43 Display form change unit 42 Position specifying unit

Claims (8)

An input device for displaying on a screen a key for accepting an input operation from a user,
A display unit for displaying the key;
A detection unit for detecting depression and release by a key displayed on the display unit;
In accordance with a period from the time when the detection unit detects release by the key to the time when the detection unit detects pressing by the key, at least the display area specified by the key and the arrangement position of the key are included. A display form changing unit for changing the display form of the key;
An input device comprising: An input device for displaying on a screen a key for accepting an input operation from a user,
A display unit for displaying the key;
In the vicinity of the display area specified by the key displayed on the display unit, a position specifying unit for specifying a position touched by the user to press the key;
According to the positional relationship between a predetermined point in the display area and the position specified by the position specifying unit, the display form of the key including at least the display area specified by the key and the arrangement position of the key A display form changing unit to be changed,
An input device comprising: An input device for displaying on a screen a key for accepting an input operation from a user,
A display unit for displaying the key;
A detection unit for detecting depression and release by a key displayed on the display unit;
In the vicinity of the display area specified by the key displayed on the display unit, a position specifying unit for specifying a position touched by the user to press the key;
A period from a time point when the detection unit detects release by the key to a time point when the detection unit detects pressing by the key, and a predetermined point in the display area and a position specified by the position specifying unit A display form changing unit for changing the display form of the key, including at least the display area specified by the key and the arrangement position of the key, based on the positional relationship;
An input device comprising: The input device according to claim 1 or 3,
The display unit displays a plurality of keys,
The detection unit detects pressing and release for each key displayed on the display unit,
The display form changing unit is configured to detect from when the detection unit detects the release of any one of the plurality of keys until when the detection unit detects the pressing of any one of the plurality of keys. According to the period, the display form of the key including at least the display area specified by the key and the arrangement position of the key is changed.
Input device. The input device according to claim 2 or 3,
The display unit displays a plurality of keys,
The position specifying unit specifies a position touched by the user to press the key in the vicinity of the display area specified by each of the plurality of keys displayed on the display unit,
The display form changing unit includes at least a display region specified by the key according to a positional relationship between a predetermined point in the display region and a position specified by the position specifying unit in each of the plurality of keys. Changing the display form of the key, including the position of the key,
Input device. The input device according to any one of claims 1 to 3,
The display unit displays a plurality of keys,
The detection unit detects pressing and release for each key displayed on the display unit,
The position specifying unit specifies a position touched by the user to press the key in the vicinity of the display area specified by each of the plurality of keys displayed on the display unit,
The display form changing unit is configured to detect from when the detection unit detects the release of any one of the plurality of keys until when the detection unit detects the pressing of any one of the plurality of keys. Based on the period and the positional relationship between the predetermined point in the display area and the position specified by the position specifying unit in each of the plurality of keys, at least the display area specified by the key and the key Change the display form of the key, including the position of
Input device. A program for causing a computer to control a layout of keys displayed on a screen in order to accept an input operation from a user,
An opening detection step for detecting opening by a key displayed on the screen;
A pressing detection step for detecting pressing by a key displayed on the screen;
At least a display area specified by the key and an arrangement position of the key according to a period from the time when the release by the key is detected by the release detection step to the time when the press by the key is detected by the press detection step. Including a display form changing step for changing the display form of the key,
A program with A program for causing a computer to control a layout of keys displayed on a screen in order to accept an input operation from a user,
A position specifying step for specifying a position where the user has touched in order to press the key in the vicinity of the display area specified by the key displayed on the screen;
According to the positional relationship between a predetermined point in the display area and the position specified by the position specifying unit, the display form of the key including at least the display area specified by the key and the arrangement position of the key A display form changing step to be changed;
A program with

Images