JP2941807B2 - Data processing apparatus and method - Google Patents

Description

The present invention relates to a data processing apparatus and method, and more particularly, to a data processing apparatus and method in which a multi-application program operates.

2. Description of the Related Art Conventionally, when a multi-application program runs on a data processing device such as a personal computer, key management, for example, display of an input mode, is performed by an OS (Operating System).
It is performed in a place where the application program (hereinafter simply referred to as an application) does not involve, for example, whether it is incorporated and controlled in a part of the ating system or is controlled by a special processor attached later.

[Problems to be Solved by the Invention] Therefore, it is effective for an application that requires key input, but is unnecessary for an application that requires only a pointing device such as a mouse or a touch panel, and the input mode is always displayed. However, there is a problem that an operator may have an illusion that key input may be possible, such as a change in the mode display when the input mode switching key is pressed.

[Means for Solving the Problem (and Action)] An object of the present invention is to eliminate the above-described problem. Only when an application that requires key input is operated, an input mode is displayed at the request of the application. It is an object of the present invention to provide a data processing apparatus and method capable of eliminating a display on a simple screen and informing an operator whether a key input is valid or invalid.

[Embodiment] The present invention is assumed to be resident so that a subroutine can be freely called from an application.

FIG. 1 is a block diagram of a data processing apparatus for explaining an embodiment of the present invention. 1 is a CPU, 2 is a RAM in which a program for controlling the apparatus is stored, and a RAM in which other applications are loaded, 3 is a keyboard, 4 is a CRT display,
Reference numeral 5 denotes a floppy disk drive of an external storage device, and reference numeral 6 denotes a system bus.

FIG. 2 is a flowchart of a program stored in the RAM 2 for implementing the present invention. Application already
A, B, C are loaded on RAM2 and application A
Is running. The application A does not require a key input, that is, requires only an input from a pointing device, and thus no mode is displayed on the CRT4. Here, control is transferred to the application B. If the application B requires key input, a mode display command is sent from the application B.

Then, the process goes from step 1 to step 7 in the flowchart of FIG. 2, and the current mode is displayed on a part of the CRT 4. Next, in step 8, the mode is set to application B
Therefore, the current mode can be stored in the application B.

When the mode switching key is pressed during the execution of the application B, a mode change command is issued from the CPU 1 and the second
Go from step 3 to step 10 in the flowchart
The mode is changed by the pressed key. For example, in the case of a full-width or half-width switching key, the mode is changed from full-width to half-width or from half-width to full-width. At this time, the mode after the change is returned to the application B.
Issues a mode display command immediately to display the changed mode.

When a character key or the like is pressed, a key conversion command is issued from the CPU 1 and the process goes from step 4 to step 5 in the flowchart of FIG. 2, where the character code is converted into a character code corresponding to the current mode and returned to the application B.

Here, it is assumed that control is transferred to the application C. Immediately before the transition, the application B issues a mode erase command. Then, the process goes from step 2 to step 9 in the flowchart of FIG. 2, and the mode display of CRT4 disappears.

If the application C also requires key input, a mode display command is issued as in the case of the application B, and then key input is performed. After that, when the control is transferred to the application A, this application does not need to issue any instruction regarding the mode display. Therefore, the mode remains extinguished, and is not changed even if the mode switching key is pressed.

[Effects of the Invention] As described above, according to the present invention, an input mode is displayed according to an operating application program, and a key input is effective when an operator displays, for example, a key input mode. Can be determined.

[Brief description of the drawings]

FIG. 1 is a block diagram of a data processing device according to an embodiment of the present invention, and FIG. 2 is a flowchart of a program for realizing the present invention. 1 ... CPU, 2 ... memory, 3 ... keyboard, 4 ... CRT, 5 ... external storage device, 6 ... system bus.

Claims (2)

(57) [Claims] 1. A storage means for storing a plurality of application programs of an application program requiring key input and an application program requiring only input by a pointing device, and selectively reading out the application program from the storage means. Executing means for executing, in response to a request from an application program being executed by the executing means, when the application program requires key input, displaying a key input mode on the display means; A data processing apparatus comprising: a display control unit that does not display a key input mode on the display unit when the application program requires only an input from a pointing device. 2. A plurality of application programs including an application program requiring key input and an application program requiring only input by a pointing device are stored in a storage means, and the application program is selectively read from the storage means. In response to a request from an application program being executed, if the application program requires key input, a key input mode is displayed on the display means, and the application program performs only input using a pointing device. Wherein the key input mode is not displayed on the display means when the data is required.