JP2015102946A - Information processing apparatus, control method of information processing apparatus, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing apparatus that can easily distinguish enlargement/reduction operation from other operations when a touch panel can detect only one contact point.SOLUTION: An information processing apparatus sets an area for determining an instruction to start an enlargement processing or a reduction processing of an image displayed on a display unit, determines whether or not touch down in the set area has been detected, and when it is determined that the touch down in the area has been detected and a move subsequent to the touch down has been detected, enlarges or reduces the image displayed on the display unit and displays the resulting image.

Description

  The present invention relates to an information processing apparatus including a display unit having a touch panel, a control method, and a program.

  In recent years, computers having a touch panel that displays an operation screen and determines operation contents by a touch operation are generally used. Some users who operate the computer feel that it is difficult to visually recognize the size of the displayed screen.

  For such users, the computer has an operation for enlarging / reducing the screen separately from the normal operation, and distinguishing between the enlarging / reducing operation and other operations to determine the enlarging / reducing operation and display the screen. Control is in progress.

  In Patent Document 1, a touch operation at one indication point is detected, and screen display control is performed by distinguishing an enlargement / reduction operation and other operations based on the direction of the subsequent movement operation from the touch start point.

  In addition, as a method for distinguishing between enlargement / reduction operations and other operations, a process of detecting two designated points at the same time and changing the enlargement ratio of the display screen according to the distance between the two points is generally widespread. ing. Usually, the user's index finger and two thumbs of the thumb are used at the same time to indicate the touch panel. When the distance between the two points is reduced so as to pinch the surface of the touch panel, the screen is reduced. To enlarge. Such a two-point instruction method that performs an operation of pinching the screen is generally called a pinch operation.

JP2011-186734

  However, the pinch operation described in the prior art requires a touch operation with a plurality of instruction points, and there is a problem that a user who cannot easily perform a touch operation with a plurality of instruction points cannot perform an enlargement / reduction operation.

  Further, in the method of determining the enlargement / reduction operation according to the operation direction as in Patent Document 1, it is difficult to make a determination at the boundary between the operation involving movement and the enlargement / reduction operation. In addition, it may be difficult to distinguish the operation desired by the user.

  In order to solve the above problems, the present invention is an information processing apparatus including a display unit having a touch panel, and sets an area for determining an instruction to start enlargement processing or reduction processing of an image displayed on the display unit Setting means for detecting, a detecting means for detecting a touch operation on the touch panel by a user, and a determining means for determining whether or not a touch-down in the region set by the setting means is detected by the detecting means. When the determination means determines that a touchdown within the area has been detected and the detection means detects a move following the touchdown, the image displayed on the display unit is enlarged or reduced and displayed. And expansion / contraction means.

  According to the present invention, in an information processing apparatus including a touch panel as an input device, an enlargement / reduction operation and others can be easily determined when the touch panel can detect only one contact point. Further, an enlargement / reduction operation can be easily performed for a user who is difficult to perform a contact operation at a plurality of contact points.

It is a figure which shows the hardware constitutions of the information processing apparatus in embodiment of this invention. It is a figure explaining the operation method for instruct | indicating the screen displayed on the display in 1st embodiment, and an expansion / reduction process. It is a figure explaining the operation method for instruct | indicating the screen displayed on the display in 2nd, 3rd embodiment, and an expansion / reduction process. It is a flowchart explaining operation | movement of the information processing apparatus in 1st embodiment. It is a flowchart explaining operation | movement of the information processing apparatus in 2nd embodiment. It is a flowchart explaining operation | movement of the information processing apparatus in 3rd embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

<Hardware configuration>
FIG. 1 is a diagram illustrating a hardware configuration of an information processing apparatus 101 to which each embodiment of the present invention can be applied. In FIG. 1, a CPU 111, a RAM 112, a ROM 113, an input control unit 114, a display control unit 115, an external memory I / F 116, and a communication I / F controller 117 are connected to a system bus 110. A touch panel 118, a display 119, and an external memory 120 are connected. Each unit connected to the system bus 110 is configured to be able to exchange data with each other via the system bus 110.

  The ROM 113 is a nonvolatile memory, and stores image data and other data, various programs for operating the CPU 111, and the like in predetermined areas.

  The RAM 112 is a volatile memory, and is used as a temporary storage area such as a main memory or work area of the CPU 111.

  The CPU 111 controls each unit of the information processing apparatus 101 using the RAM 112 as a work memory in accordance with a program stored in the ROM 113 or the external memory 120.

  The input control unit 114 receives a user operation, generates a control signal corresponding to the operation, and supplies the control signal to the CPU 111. For example, the input control unit 114 includes a character information input device (not shown) such as a keyboard and a pointing device such as a mouse (not shown) and a touch panel 118 as input devices that accept user operations. Note that the touch panel 118 is an input device that outputs coordinate information corresponding to a position touched on an input unit configured in a planar manner, for example. The CPU 111 controls each unit of the information processing apparatus 101 according to a program based on a control signal generated and supplied by the input control unit 114 in response to a user operation performed on the input device. Thereby, it is possible to cause the information processing apparatus 101 to perform an operation according to the user operation.

  The display control unit 115 outputs a display signal for displaying an image on the display 119. The CPU 111 supplies the display control signal generated according to the program to the display control unit 115. Based on this display control signal, the display control unit 115 causes the display 119 to display a GUI screen that forms a GUI (Graphical User Interface).

  The touch panel 118 is configured integrally with the display 119. The touch panel 118 is configured such that the light transmittance does not hinder the display of the display 119, and is attached to the upper layer of the display surface of the display 119. Then, CPU 111 associates input coordinates on touch panel 118 with display coordinates on display 119. Thereby, it is possible to configure a GUI as if the user can directly operate the screen displayed on the display 119.

  For example, a hard disk, a floppy (registered trademark) disk, or an external memory 120 such as a CD, a DVD, or a memory card can be attached to the external memory I / F 116. Based on the control of the CPU 111, data is read from the attached external memory 120 and data is written to the external memory 120.

  The communication I / F controller 117 performs communication with various networks 102 such as a LAN, the Internet, wired, and wireless based on the control of the CPU 111.

  Note that the CPU 111 can detect, for example, the following touch operations and states on the touch panel 118.

Touching the touch panel with a finger or a pen (hereinafter referred to as touchdown).
The touch panel is touched with a finger or a pen (hereinafter referred to as touch-on).
The touch panel is moved while being touched with a finger or a pen (hereinafter referred to as a move).
The finger or pen that was touching the touch panel is released (hereinafter referred to as touch-up).
A state in which nothing touches the touch panel (hereinafter referred to as touch-off).

  These operations and the position coordinates where the finger or pen touches the touch panel are notified to the CPU 111 through the system bus 110, and the CPU 111 determines what operation has been performed on the touch panel based on the notified information. . Regarding the move, the moving direction of the finger or pen moving on the touch panel can also be determined for each vertical component / horizontal component on the touch panel based on the change of the position coordinates.

  The touch panel 118 may be any of various types of touch panels such as a resistive film type, a capacitance type, a surface acoustic wave type, an infrared type, an electromagnetic induction type, an image recognition type, and an optical sensor type. good.

<First Embodiment>
2A to 2D are diagrams for explaining the screen displayed on the display 119 of the information processing apparatus 101 and the operation on the touch panel 118 arranged on the screen according to the present invention. Hereinafter, a display example of the display 119 and an operation on the touch panel 118 arranged on the screen according to the present embodiment will be described with reference to FIGS.

  FIG. 2A is a function selection screen for selecting a plurality of functions of the information processing apparatus 101 according to the present invention. This function selection screen is also an initial screen displayed after the information processing apparatus 101 is activated.

  A setting screen is displayed in the function selection screen 201 in FIG. The upper screen portion 202 in FIG. 2A is an area for displaying the title of the display screen. In this case, a predetermined title is always displayed regardless of the display content of the function selection screen 201. A lower part 203 of the screen in FIG. 2A is a device status area. This is a display area for notifying the user of the contents of any change in the state of the information processing apparatus 101 such as an error. In the device status display area 203, contents determined independently of the display contents of the function selection screen 201 are displayed.

  The function selection buttons 211 to 215 are instruction buttons for selecting one of a plurality of functions of the information processing apparatus 101. In the function selection screen 201, when the content displayed on the screen is difficult to see, there is a request that the user wants to enlarge the display characters and the display screen.

  FIG. 2B is a diagram illustrating a method for instructing the information processing apparatus 101 to perform screen enlargement processing in the present embodiment. The movement locus 224 performed by the user in the operation 223 of the hand in which the user is instructing the image enlargement processing on the touch panel 118 installed on the display 119 is assumed.

  An area 220 is an area for determining an instruction to start a screen enlargement process (hereinafter referred to as an enlargement start area), and is set in advance in the information processing apparatus. The touchdown from there is used as an image enlargement processing instruction. The user performs a move after touching down the area 220, and determines the difference between the coordinate values from the touchdown start point to the point at which the move is detected as a movement amount, and the enlargement ratio is multiplied by a constant to be 1 or more. To do. The function selection screen 201 is enlarged and displayed according to the determined enlargement rate, and the enlargement process is terminated by touch-up. At this time, the same enlargement process is performed regardless of the direction of the move. That is, the enlargement ratio is determined only by the movement amount regardless of the movement direction of the move.

  An area (hereinafter referred to as a reduction start area) 221 for determining a reduction process start instruction is also set in the same manner. The touchdown to the area 221 serves as an instruction to start the reduction process on the function selection screen 201, and the reduction rate is determined by the movement amount of the move as in the enlargement process, and the reduction process is performed. And a reduction process is complete | finished by a user's touchup.

  FIG. 2C shows a screen displayed on the display 119 where the screen enlargement process is actually performed by the screen enlargement process method of FIG. In FIG. 2C, the function selection screen 201 of FIG. 2A is enlarged as a whole while maintaining the aspect ratio. By enlarging, all the displays do not fit in the display area of the function selection screen 201, and some displays are hidden from the screen. For this reason, scroll bars 230 and 231 are displayed on the right and lower parts of the screen, respectively. By operating the scroll bars 230 and 231, a hidden screen can be displayed. Another method for scrolling the screen will be described with reference to FIG. Description will be made in the operation 225 of the hand in which the user performs a scroll operation for displaying the screen hidden by the user on the touch panel installed on the display 119 in FIG. The move 226 is performed from the touchdown point 232 of the operation 225 of the user's hand, and the touch panel 118 detects the touch-on point 233 after the move 226. The moving direction and moving amount of the scroll operation of the display screen are determined based on the moving amount and moving direction from the start point 232 to the end point 233 of the move 226, and the scroll operation is performed. The scroll operation ends when the user touches up.

  As described above, in the present embodiment, the display screen can be enlarged / reduced (enlarged / reduced) by an operation from one designated point by the user. Since the enlargement / reduction start area is uniquely defined, it can be easily used separately from the scrolling operation of the screen, and an erroneous operation of the user can be prevented. Further, by not limiting the operation direction from the start point of the enlargement / reduction operation instruction, when the display character string and the user's hand 223 are difficult to see in the operation of FIG. 2B, the direction of the move 224 is changed to the user. Can be done in any direction. As described above, the operation for enlarging / reducing the screen during the operation can be processed in a state that is easy for the user to visually recognize.

  In the present embodiment, the enlargement start area 220 and the reduction start area 221 have been described as preset areas. This area is not limited to the upper left and lower right of the display unit, but may be arbitrarily set by the user. Note that the areas 220 and 221 may be displayed so that they can be identified by the user, or may be hidden for the user who is used to them.

  Next, the operation of the information processing apparatus 101 according to this embodiment will be described with reference to FIG.

  FIG. 4 shows processing executed when the screen enlargement process in FIG. 2B is performed while the operation screen as shown in FIG. 2A is being displayed in the information processing apparatus 101 of the present embodiment. It is a flowchart. Each step in the flowchart of FIG. 4 is processed by the CPU 111 executing a control program stored in the ROM 113 or the external memory 120 of the information processing apparatus 101.

  In step S <b> 401, the CPU 111 detects an operation instruction from the touch panel 118 via the input control unit 114.

  In step S402, the CPU 111 determines whether the operation instruction from the user input from the touch panel 118 is an instruction into the enlargement start area. If it is determined in step S402 that the instruction is not within the enlargement start area, the process proceeds to step S403.

  If it is determined in step S402 that the instruction is for the enlargement start area, in step S405, the CPU 111 determines an instruction for the touch panel 118 performed after the user has given the instruction for the enlargement start area. If it is determined in step S405 that the movement is made, a difference in coordinates from the coordinate of the contact point detected by the touch panel 118 to the point where the movement is detected is calculated as a movement amount in step S406. In step S407, the moving amount obtained in step S406 is multiplied by a constant to determine an enlargement ratio of 1 or more. In step S408, an enlargement process is performed to multiply the aspect ratio of the screen displayed on the display 119 by the enlargement rate derived in step S407, and the enlarged screen is displayed via the display control unit 115. To display. Returning to step S405, when it is determined that the user's operation is touch-up, the enlargement process is terminated.

  In step S <b> 403, the CPU 111 determines whether the operation instruction from the user input from the touch panel 118 is an instruction into the reduction start area. If it is determined that the instruction is not within the reduction start area, the process corresponding to the point at which the operation instruction is detected in step S404 is executed and the process ends. If it is determined in step S403 that the instruction is within the reduction start area, the process proceeds to step S409. If it is determined in step S409 that the movement is made, in step S410, the difference in coordinates from the coordinates of the contact point detected by the touch panel 118 to the point where the movement is detected is calculated as the movement amount. In step S411, the moving amount obtained in step S410 is multiplied by a constant to determine a reduction ratio of 1 or less. In step S412, a reduction process for multiplying the vertical / horizontal ratio by the reduction ratio with respect to the screen displayed on the display 119 at the reduction ratio derived in step S411 is performed, and the enlarged screen is displayed on the display 119. To display. In step S409, when the CPU 111 determines that the touch-up operation is performed, the reduction process is terminated.

  As described above, in the present embodiment, an input from the touch panel 118 is detected, it is determined whether the operation instruction point is in the enlargement start area, the reduction start area, or any other area. Execute the process.

  In this embodiment, in steps S406 to S407 and S410 to S411, the enlargement / reduction ratio is prepared in stages without performing the enlargement / reduction ratio determination continuously according to the amount of movement. May be.

<Second Embodiment>
Next, a second embodiment will be described. In the first embodiment described above, the entire display screen is enlarged / reduced by an enlargement / reduction processing instruction. In contrast, the second embodiment is a method of enlarging / reducing a preview image or an object such as a button, a character, or an icon displayed on the screen that the user wants to watch, not the entire screen. Hereinafter, the second embodiment will be described with a focus on differences from the first embodiment.

  FIGS. 3A, 3 </ b> B, and 3 </ b> D are diagrams for explaining operations on the screen displayed on the display 119 of the information processing apparatus 101 and the touch panel 118 arranged on the screen according to the present embodiment. FIG. Hereinafter, a display example of the display 119 and an operation on the touch panel 118 arranged on the screen according to the present embodiment will be described with reference to FIGS. 3A, 3B, and 3D.

  A display portion 301 in FIG. 3A is the entire screen displayed on the display 119. One of the functions of the information processing apparatus 101 is a screen for a preview function for confirmation when an image is transmitted to another information processing apparatus. The user can transmit the image 318 in FIG. 3A by pressing the button 314 when transmitting the image 318. Further, when confirming a plurality of images, the number display of the total preview number display unit 309 represents the total number of images prepared as images to be transmitted. During preview display, the page number of the image currently displayed on the preview image display unit 315 is displayed at 308. When there are a plurality of preview images, the preview images displayed on the preview image display unit 315 can be switched to the next page image and the previous page image by the buttons 310 and 311. When the button 313 is pressed, the page of the preview image currently displayed on the preview image display unit 315 is deleted. When the button 312 is pressed, the operation of the transmission function can be stopped. In the case of the function screen shown in FIG. 3A, since the confirmation function for image transmission is used, the object that the user wants to watch is the image 318. An object that the user wants to watch is defined in advance as a target object for enlargement / reduction processing.

  As described in the first embodiment, the enlargement / reduction start areas 302 and 303 are set.

  In FIG. 3B, 321 is a trajectory that the user has moved in the operation 320 of the hand that the user is performing an enlargement operation on the touch panel 118 installed on the display 119.

  The enlargement start area 302 is set in advance. The user can instruct the information processing apparatus 101 to perform an enlargement process by performing a move 321 after touching down the enlargement start area 302. From the preview image, character string, icon, button, and other objects displayed on the screen, this embodiment defines the object that the user wants to watch in advance for each function screen, and enlarges the object. It is a method of instructing.

FIG. 3D is a diagram on the screen displayed on the display 119 after the enlargement operation. If the preview image 318 becomes larger than the display area of the preview image display unit 315 due to enlargement processing, it may be hidden. At that time, the scroll operation of the preview image display unit 315 can be performed by pressing a button 304 to 307. Here, the buttons 304 to 307 may be the scroll bars 230 and 231 in FIG. 2D of the first embodiment, or may be a scroll operation performed by the user operation 225 in FIG. In addition, 302 and 303 are predetermined points, points determined uniquely by the user, points determined by the administrator of the information processing apparatus 101, and the like. Any area may be used as the enlargement / reduction start area. The areas 302 and 303 may be displayed so that the user can identify them, or may be hidden for the user who is used to them. Next, the information processing apparatus 101 according to the present embodiment will be described with reference to FIG. Will be described.

  FIG. 5 is a process executed when an instruction for an object enlargement process in FIG. 3B is issued while the operation screen as shown in FIG. 3A is being displayed in the information processing apparatus 101 of the present embodiment. It is a flow. Each step in the flowchart of FIG. 5 is processed by the CPU 111 executing a control program stored in the ROM 113 or the external memory 120 of the information processing apparatus 101.

  Steps S501 to S504 are the same processing as steps S401 to S404 of FIG. 4 described in the first embodiment. If the CPU 111 determines in step S502 that the operation instruction is to the enlargement start area, it acquires information on the object to be enlarged in advance determined for each screen in step S520. Thereafter, in steps S505 to S507, the CPU 111 determines an enlargement rate according to the movement amount of the move, as in the first embodiment, and performs an enlargement process on the object to be enlarged in step S521. Similarly, in step S503, the reduction processing instruction is determined as an operation instruction to the reduction start area, and a reduction object is determined. The CPU 111 determines a reduction rate according to the amount of movement of the move from step S509 to step S511, and performs reduction processing of the object to be reduced in step S523. The enlargement / reduction process is terminated by touch-up.

  In the present embodiment, the method for determining the object to be watched by the user on the operation screen is defined in advance, but the method for determining the target object for the enlargement / reduction processing is not limited to this. The user may sequentially determine objects to be enlarged / reduced through a setting screen or a selection operation, or may be limited to objects displayed on all function screens such as character strings. The entire display unit may be an object to be enlarged. Therefore, steps S520 and S522 may be executed in advance before receiving an operation from the enlargement / reduction processing instruction start point.

  According to this embodiment, without changing the starting point of the enlargement / reduction processing instruction, the user can perform enlargement / reduction processing on any function screen by a single operation of the object to be subjected to enlargement / reduction processing determined in advance. Is possible.

<Third Embodiment>
Next, a third embodiment will be described. The second embodiment described above is an example in which the user enlarges / reduces the object that the user wants to watch by the same operation as the first embodiment. On the other hand, in the third embodiment, an enlargement / reduction start area is set for each object, and an object enlargement / reduction processing instruction is determined by touching down the enlargement / reduction start area. Hereinafter, the third embodiment will be described focusing on the difference from the second embodiment.

  FIGS. 3A, 3 </ b> C, and 3 </ b> D are diagrams for explaining the screen displayed on the display 119 of the information processing apparatus 101 and the operation on the touch panel 118 arranged on the screen according to the present invention. is there. Hereinafter, with reference to FIGS. 3A, 3 </ b> C, and 3 </ b> D, a display example of the display 119 and an operation on the touch panel 118 arranged on the screen according to the embodiment of the present invention will be described.

  FIG. 3A is an operation screen for a preview function for confirmation as in the second embodiment. Enlargement / reduction start areas 316 and 317 are set for each object.

  FIG. 3C illustrates the operation of the hand operation 321 in which the user is instructing enlargement processing on the touch panel 118 installed on the display 119.

  The user can instruct the information processing apparatus 101 to enlarge the object 318 by performing a move 323 after touching down the enlargement start area 316 of the preview image.

  By predefining the enlargement / reduction start area for each object, the user can perform object enlargement / reduction processing on each object. FIG. 3D is a display of the operation unit after the enlargement process of FIG. Here, each object may be buttons 312 to 314 or a character string. The enlargement / reduction start area may be any point of the object as long as it is defined in advance, and need not be unified for each object. However, in consideration of user operability, it is desirable that the position of the enlargement / reduction start area defined for each object is unified.

  According to this embodiment, the user can perform enlargement / reduction processing on all objects by a single operation. In addition, when the button 313 in FIG. 3D is enlarged, the user's hand to operate may be covered with the button 314. Even in such a case, in the present invention, the enlargement / reduction start area is fixed, but since there is no condition for the operation direction and the like, the user's hand to operate the object when instructing the enlargement process in an arbitrary direction The operation direction can be adjusted so that it does not cover.

  Next, the operation of the information processing apparatus 101 according to this embodiment will be described with reference to FIG.

  FIG. 6 is a processing flow executed when the object enlargement process in FIG. 3C is performed while the operation screen as shown in FIG. 3A is being displayed in the information processing apparatus 101 of the present embodiment. is there. Each step in the flowchart of FIG. 6 is processed by the CPU 111 executing a control program stored in the ROM 113 or the external memory 120 of the information processing apparatus 101.

  Following step S601, it is determined in step S620 which object the user has instructed enlargement / reduction processing. Since conditional branching and processing in steps S602 to S604 are performed in the same manner as in steps S402 to S406 of the first embodiment, description thereof is omitted. When it is determined in step S602 that the operation is to the enlargement start area, the CPU 111 executes steps S605 to S607 in the same manner as steps S405 to S407 in the first embodiment. In step S621, the CPU 111 performs enlargement processing on the object determined in step S620.

  Also in the reduction process, when it is determined in step S603 that the operation is to the reduction start area, steps S609 to S611 are performed in the same manner as in the first embodiment, and the reduction process is performed on the object determined in step S620 in step S622. Do.

  Here, in step S620, the determination may be performed before the enlargement / reduction process is performed, or a method of dynamically determining an object by coordinate calculation may be used.

  According to the present embodiment, even when there are two or more objects to be enlarged / reduced by the user, the user can instruct the object enlargement / reduction process by a single operation. Here, the single operation in the present embodiment means that the upper left of the object is the enlargement start area and the lower right is the reduction large start area. Note that the enlargement / reduction start area of this embodiment is not limited to the upper left and lower right. Up, down, left and right, or the center of the object may be used. In addition, a move is accompanied when an instruction for enlargement / reduction processing is given, but the operation direction of the move is not limited.

[Other Embodiments]
Although the embodiment has been described in detail above, the present invention can take an embodiment as a system, apparatus, method, program, storage medium (recording medium), or the like. Specifically, the present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.

  The information processing apparatus 101 described above includes various apparatuses. For example, it is not limited to a personal computer, PDA, and mobile phone terminal, but includes a printer, a scanner, a FAX, a copier, a multifunction peripheral, a camera, a video camera, and other image viewers.

  And this invention is implement | achieved also by performing the following processes. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program code. It is a process to be executed. In this case, the computer program and the storage medium storing the computer program constitute the present invention.

101 Information processing apparatus 111 CPU
112 RAM
118 Touch panel 119 Display 120 External memory

Claims (6)

An information processing apparatus including a display unit having a touch panel,
Setting means for setting an area for determining an instruction to start enlargement processing or reduction processing of an image displayed on the display unit;
Detecting means for detecting a touch operation on the touch panel by a user;
A determination unit that determines whether or not the detection unit detects a touchdown within the region set by the setting unit;
Enlarging / reducing an image displayed on the display unit by enlarging or reducing the image when it is determined by the determining means that a touchdown within the area has been detected and a move following the touchdown is detected by the detecting means Means,
An information processing apparatus comprising: A calculating means for calculating a movement amount of the move when a move is detected by the detecting means;
The information processing apparatus according to claim 1, wherein the enlargement / reduction unit displays the image by enlarging or reducing the image at an enlargement rate or reduction rate corresponding to the movement amount calculated by the calculation unit. When it is determined that the touchdown into the area is detected by the determination unit, the acquisition unit includes an acquisition unit that acquires an object to be enlarged or reduced.
The information processing apparatus according to claim 1, wherein the enlargement unit enlarges or reduces the object acquired by the acquisition unit. The setting means sets the area for each object,
The enlargement / reduction means determines that the touchdown into the area has been detected by the detection means, and when the detection means detects a move following the touchdown, displays the object enlarged or reduced. An information processing apparatus according to claim. A method for controlling an information processing apparatus including a display unit having a touch panel,
A setting step for setting an area for determining an instruction to start enlargement processing or reduction processing of an image displayed on the display unit;
A detection step of detecting a touch operation on the touch panel by a user;
In the detection step, a determination step of determining whether or not a touchdown within the region set in the setting step is detected;
When it is determined that the touchdown in the area is detected in the determination step, and the move following the touchdown is detected in the detection step, the image displayed on the display unit is enlarged or reduced and displayed. Process,
A method for controlling an information processing apparatus, comprising:   A computer program for causing a computer to execute the control method according to claim 5.

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