JPH04289945A - Terminal control system - Google Patents

Abstract

PURPOSE:To enhance the development and the maintainability of an application program including the control of a CRT terminal equipment, and to improve the operability of a user. CONSTITUTION:An information processor is provided with a recognizing means 3 for detecting the kind of a CRT terminal equipment 6, selects plural terminal control programs prepared in advance in accordance with the kind of the CRT terminal equipment 6, and controls the CRT terminal equipment 6 by converting a standard control command of an application program to an exclusive control command of the CRT terminal equipment 6.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal control system, and particularly to a terminal control system for an information processing apparatus to which a plurality of types of CRT terminal devices can be connected.

0002

[Prior Art] Conventionally, in this type of terminal control system, when an application program is run on an information processing device, a user checks the type of CRT terminal connected to the information processing device and controls the application program. This type is notified, and the application program controls the CRT terminal according to this type.

0003

The conventional terminal control method described above has the disadvantage that multiple terminal control programs must be developed and maintained for each application program in order to control the CRT terminal device. Furthermore, during operation, there is a problem in operability in that it is necessary to check and specify the CRT terminal device connected from the outside.

0004

[Means for Solving the Problems] The terminal control method of the present invention provides a terminal recognition means for recognizing the type of connected CRT terminal device in a terminal control method for an information processing device to which a plurality of types of CRT terminal devices can be connected. , multiple types of terminal control programs stored in a storage device that convert standard commands for controlling the CRT terminal device into terminal-specific commands, and types of standard commands issued from application programs recognized by the terminal recognition means. and command converting means for converting commands into terminal-specific commands using a terminal control program selected from the plurality of types of terminal control programs according to the terminal control program.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention. In the embodiment shown in FIG. 1, a main storage device 2, a terminal recognition mechanism 3, a terminal connection mechanism 4, and an external storage device 5 are connected to a bus 7 connected to a CPU 1, and a plurality of CRT terminals are connected to the terminal connection mechanism 4. One of the devices 6 is shown. Further, a direct communication path is provided between the terminal recognition mechanism 3 and the terminal connection mechanism 4. FIG. 2 is a diagram showing the storage location of related programs in the embodiment of FIG.

In the above configuration, the terminal control selection program 11 is loaded into the main storage device 2 from the external storage device 5 such as a hard disk. On the other hand, the terminal recognition mechanism 3 communicates with the CRT terminal device 6 via the terminal connection mechanism 4,
The type of CRT terminal device 6 is recognized. The terminal control selection program 11 loaded into the main storage device 2 reads the type of CRT terminal device 6 obtained by the terminal recognition mechanism 3.

FIG. 3 is a flow chart of the terminal control selection program 11. The operation of the embodiment will be explained with reference to the flowchart of FIG. 3. As described above, the terminal control selection program 11 reads the type of CRT terminal obtained from the terminal recognition mechanism 3 (step 31). The most suitable terminal control program 12 is selected based on the read type (step 32). According to the selection result, the terminal control program 12 stored in the external storage device 5 is loaded into the main storage device 2 (step 33).

FIG. 4 is a flowchart of the terminal control program 12. To further explain the operation of the embodiment with reference to the flowchart of FIG. 4, the terminal control program 12 uses a standard CR issued by the application program 13
A T terminal control command is received (step 41). The received standard CRT terminal control command is converted into a dedicated control command corresponding to the currently connected CRT terminal device 6 (step 42). Next, the CRT terminal device 6 is controlled using a dedicated control command (step 4).
3) Notify the application program 13 of the command execution result (step 44), and end the process.

0010

[Effects of the Invention] As explained above, the present invention automatically detects the type of CRT terminal device and controls the CRT terminal device by changing commands from an application program to commands most suitable for each CRT terminal device. , there is no need to create a dedicated terminal control program for each application program,
All you need to do is create a general-purpose control program. Therefore, it is easy to develop and maintain, and the user does not need to be aware of the type of CRT terminal when using the application program.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a diagram showing a storage location of a program used in FIG. 1;

FIG. 3 is a flowchart of the terminal control selection program of FIG. 2;

FIG. 4 is a flowchart of the terminal control program of FIG. 2;

[Explanation of symbols] 1 CPU 2 Main memory 3 Terminal recognition mechanism 4 Terminal connection mechanism 5 External storage device 6 CRT terminal device 11 Terminal control selection program 12 Terminal control program 13 Application program

Claims (1)

[Claims] 1. A terminal control method for an information processing apparatus to which a plurality of types of CRT terminal devices can be connected, comprising: terminal recognition means for recognizing the type of the connected CRT terminal device;
A plurality of types of terminal control programs stored in a storage device that convert standard commands for controlling the RT terminal device into terminal-specific commands, and standard commands issued from application programs according to the types recognized by the terminal recognition means. 1. A terminal control method, comprising: a command conversion means for converting commands into terminal-specific commands using a terminal control program selected from the plurality of types of terminal control programs.