JPH02148324A - Display system for display in hard copy - Google Patents

Abstract

PURPOSE:To continuously display the display of a processed screen even in a hard copy by providing two display devices capable of operation in parallel and, when the hard copy is taken on one side of the display devices, displaying arbitrary data on the other side. CONSTITUTION:Both display controlling sections 11 and 12 can make access to both data A and B in a common area 10. Usually, the data A made access by the section 11 is supplied to a display device 13 for display and the data made access by the section 12 is supplied to another display device 14 for display. Upon receiving a hard copy outputting instruction, a hard copy device 15 makes operations for outputting the data fetched from a buffer in the device 14 as hard copies. When the data B is to be monitored continuously, instruction is given to the section 11 to change the data A currently displayed on the device 13 to the data B. As a result, the data A is not displayed, but the section 12 makes access to the data A and allows the device 14 to display the data A when the device 15 completes the data output by the hard copy.

Description

[Detailed Description of the Invention] [Summary] Regarding a display display method during hard copying in an information processing apparatus equipped with a display device and a hard copy device, a means for continuously displaying a processing screen even during hard copying is provided. for the purpose of providing.

first and second display devices, first and second display control sections that control data display for each of the first and second display devices, and the first and second display control sections. a common area that can be referenced in common; and a hard copy coupled to at least one of the first and second display devices; data is stored in the common area, and the first and second display control units access the corresponding first and second data and display them on the first and second display devices, respectively, and the hard copy device 1st
Alternatively, when outputting the display data of one of the second display devices as a hard copy, the display control unit coupled to the other display device outputs the other of the first and second data in the common area according to an instruction. The configuration is such that it can be selected and output for display on the other display device.

[Industrial application field]

The present invention relates to a display method for displaying a hard copy in an information processing apparatus equipped with a display device and a hard copy device.

[Conventional technique]

FIG. 3 shows an overview of a display system in a conventional information processing apparatus, where l is a display task, that is, a display control routine in a control state.

2 is a storage area used by display task 1 as a screen display data buffer. 3 is display data stored in storage area 2. 4 is a display device, and 5 is a hard copy device.

The display task 1 reads out the display data 3 in the area 2 and supplies it to the display device 4 for display. The hard copy device 5 is coupled to the display device 4, and in operation takes display data from the display device 4 and outputs it as a hard copy.

During hard copying, the display data in the display device 4 is frozen and the display is stopped, so updating of the display data 3 in the storage area 2 is also prohibited.

(Problems to be Solved by the Invention) In the conventional information processing apparatus, since the display is stopped during hard copying, it becomes impossible to monitor during hard copying when monitoring work is being performed.

Particularly in situations where a data abnormality occurs during monitoring and a hard copy of the data is being taken, it is extremely inconvenient for monitoring to be interrupted.

SUMMARY OF THE INVENTION An object of the present invention is to provide a means for continuously displaying a processing screen even during hard copying.

[Means to solve the problem]

The present invention provides two display devices that can operate in parallel, each displaying data in a common area so that when one display device is making a hard copy, the other display device can display arbitrary data. This allows for display output.

FIG. 1 is a diagram showing the basic configuration of the present invention.
0 is a common area 11 in which data for display is stored; 12 is an independent display control unit; 1314 is a display device that operates in parallel; and 15 is a hard copy device coupled to the display device 14.

[Effect]

In the configuration shown in FIG. 1, the two display control units 11 and 12 can both access data A and B in the common area 10. Normally, data A accessed by the display control section 11 is supplied to the display device 13, and similarly to 2, data B accessed by the display control section 12 is supplied to the display device 14 and displayed on each.

When a hard copy output instruction is received, the hard copy device 15 performs a hard copy output operation based on data (B in this case) retrieved from a buffer (not shown) in the display device 14. The buffer is frozen and will not be updated until the hardcopy output is finished.

Therefore, if it is necessary to continuously monitor data B, 1m is displayed on the display control unit 11 to control the data A currently displayed on the display device 13 to be changed to data B. As a result, data A is no longer displayed, but when the hard copy output by the hard copy device 15 is finished.

The display control unit 12 accesses the data A and displays it on the display device 14. In other words, the display device 13
．． Each of the display target data of 14 is replaced before the start of hard copying and after the end of hard copying.

〔Example〕

FIG. 2 shows the configuration of a system according to an embodiment of the present invention.

In FIG. 2, 20 is a management task, 21 is a display task (2), 22 is a display task (2), and 23 is a common area.

24.25 is data A and data B of two systems.

26 is a displaying flag, 27 is a display item updating flag, 2
8 is a display processing pending flag; 29.30 is a display device controlled by the display tasks (2) and (2), respectively; 31.
32 are hardcopy devices coupled to display devices 29 and 30, respectively.

The management task 20 executes instruction control to cause the 1-display tasks (2) and (4) to switch screens when a screen switching instruction is given by operating a function key or the like.

Flags 26 to 28 are used to display various control states for screen switching.

The displaying SORAG 26 has two display tasks (1) and (2) each for displaying whether the data currently under display control is A or B, and is set and updated by each display task.

The display item updating SORAG 27 is set to ON by an update task (5) not shown when data A and data B are being updated. When this flag is ON, screen switching is not performed and the update is waited for.

The display processing hold flag 28 is set by the display task of the display device that is currently outputting a hard copy, and indicates that the display of the next screen that should originally be switched is held off. This flag is cleared when the hard copy is completed.

Next, the operation of each task will be explained.

When the management task 20 receives an instruction to switch one screen, it refers to the display screen 26 and performs each display task ■.

■ Swap the displayed data A and B. Next, refer to the display item updating flag 27, and if any data is being updated, wait until the update is completed.

Notify each display task ■, ■ of screen switching.

Display task ■ and ■ have the same function, so 1 display task ■
To explain mainly, first, when a notification from the management task 20 is identified, 1 refers to the displayed SORAG 26 and identifies the data to be switched. For example, access the data according to the contents set in the displayed Sorag 26,
Output to the display device and switch the screen to another system. On the other hand, if 5 hard copies were in progress.

Display processing pending flag Sets the data name whose display is to be suspended on the 2nd day, suspends screen switching, and when the hard copy is completed, cancels the setting of the display processing flag and accesses the data specified by the displaying flag 26. , output to the display device and switch between 5 screens.

The above operations are executed every time a screen switching instruction is given during hard copying.

〔Effect of the invention〕

According to the present invention, by giving a screen switching instruction even during hard copying, the screen can be easily switched;
The screen of the display device that has been stopped displaying due to hard copying is displayed on the other display device! This allows continuous monitoring operations to be carried out smoothly.

[Brief explanation of the drawing]

FIG. 1 is a basic configuration diagram of the present invention, FIG. 2 is a configuration diagram of an embodiment system of the present invention, and FIG. 3 is a schematic diagram of a display system of a conventional information processing apparatus. In Figure 1. 10: Common area 11°: Display control unit 13° 14: Display device 15 Hard copy device

Claims (1)

[Claims] First and second display devices (13, 14); and first and second display devices that control data display for each of the first and second display devices (13, 14). Display control units (11, 12), and the first and second display control units (11
, 12), a common area (10) that can be commonly referenced by
a hard copy device (15) coupled to at least one of the first and second display devices (13, 14); 1 and second data (A, B) are stored in the common area (10), and the first and second display control units (11,
12) are the corresponding first and second data (A, B
) to access the first and second display devices (13
, 14), and when the hard copy device (15) outputs the display data of one of the first or second display devices (13, 14) as a hard copy, the display coupled to the other display device A display display method during a hard copy, characterized in that the control unit is configured to select the other of the first and second data in the common area according to an instruction, and display the selected data on the other display device. .