JPH01295328A - Restoration system for local screen - Google Patents

Abstract

PURPOSE:To realize the restoration of screens at the terminal side only by saving temporarily an instruction given from an operator for restoration of screens and reading the screen data to display this. CONSTITUTION:An operator pushes the restoration key on a keyboard 8 and this fact is decided by an input data deciding means 5. Then the control is shifted to a screen display means 3. The means 3 performs the display for restoration of screens and gives a request to a reading means 4 to read the screen data out of a screen data saving file 6. The screen data read by the means 4 is displayed on a CRT 7. Here the operator carries out again a keying operation by reference to the restored screen and pushes a write key when said keying operation is through. Thus it is possible to avoid such a case where the circuit load is heavy and the circuit efficiency is inferior.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention makes it possible to restore the screen on the terminal side only on the terminal side without sending the screen data to be restored from the host side. Regarding the local screen recovery method.

(Prior Art) Conventionally, when an operator presses a recovery key to instruct screen recovery, the host side determines whether the recovery key has been pressed. When the host side determines that the recovery key has been pressed, the host side sends the screen data previously written to the host side disk device to the terminal side for display.

In the conventional screen restoration method, the screen was restored by sending screen data from the host side to the terminal side in this way.

(Problem to be solved by the invention) The conventional screen restoration method described above sends all the screen data necessary to restore the screen from the host side to the terminal side via the line, resulting in a heavy load on the line. , there is a problem that the line efficiency is not good. Moreover, it takes time to restore the screen.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the local screen recovery method provided by the present invention sends a screen display request from the host side to the terminal side via a line, and sends a screen display request to the terminal side via a line. In an online system in which the received terminal side displays screen data sent along with the screen display request on the screen, the method restores the screen of the terminal side, wherein the terminal side receives the screen display request sent from the host side. , a request reception determination means for determining whether or not the screen display request specifies that the screen can be restored; and the request reception determination means determines that the screen display request specifies that the screen can be restored. screen saving means for saving the screen data sent along with the screen display request to a secondary storage medium when the host side sends the screen data along with the screen display request; and screen display means for displaying the screen data sent from the host side together with the screen display request on a screen. , the terminal side includes a reading means for reading the screen data saved in the secondary storage medium by the screen saving means, and an input data determining means for determining what data is input by the operator. , the screen display means is configured to save data to the secondary storage medium by the reading means when the input data determination means determines that the data input by the operator is data indicating an instruction to restore the screen. It is characterized by reading screen data and displaying it on the screen.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a local screen restoration method according to an embodiment of the present invention.

In the figure, 1 is a request reception determining means, 2 is a screen saving means, 3 is a screen displaying means, 4 is a reading means, 5 is an input data judging means, 6 is a screen data saving file, 7 is a CRT, and 8 is a keyboard. Each is shown below.

FIG. 2 is a flow chart showing the operation of the screen display means 3 of FIG. 1, and FIG. 3 is a flow chart showing the operation of the input data determining means 5 of FIG.

When a screen display request is sent from the post side to the terminal side, the terminal side receives and judges the display request in the request reception judgment means 1. When the request reception determining means 1 determines that the received display request is a display request specifying that screen restoration is possible, the screen data saving means 2 transfers control to the screen data saving means 2. is transferred, the screen data requested to be displayed from the host side is saved in the screen data save file 6, which is a secondary storage medium, and the same screen data as the saved screen data is passed to the screen display means 3. transfer control.

In addition, if the request reception determining means 1 determines that the received display request is a display request that does not specify that screen recovery is possible,
The screen data requested to be displayed from the host side is passed as is to the screen display means 3, and control is transferred.

Since the screen display 1"f3 is not a display for screen restoration (step 31 in FIG. 2), the received screen data is displayed on the CRT 7 (step 34 in FIG. 2).

The operator performs the key-in operation while looking at this screen, and if the key-in for one screen is successfully completed, the keyboard 8
Press the write key above. The input data determining means 5 receives the data input by the operator (step 51 in FIG. 3), and if the write key is pressed (step 52 in FIG. 3), returns to the host side (step 52 in FIG. 3). step 54),
This occurs when the operator's key-in operation is completed normally, but if the operator clears the screen by mistake, the screen may be destroyed.

In such a case, when the operator presses the recovery key on the keyboard 8, the input data determination means 5 determines that the recovery key has been pressed (step 52 in FIG. 3), and the screen display means 3 is displayed. Control is transferred (step 53 in Figure 3).

Since the screen display means 3 is a display for restoring the screen (step 31 in FIG. 2), the screen display means 3 requests the reading means 4 to read the screen data from the screen data saving file 6 and performs the step shown in FIG. 32) When the reading means 4 receives the read screen data (step 33 in FIG. 2), the CR
T7 (step 34 in FIG. 2). Here, the operator performs the key-in operation again while looking at the restored screen, and when finished, presses the write key.

(Effects of the Invention) As explained above, the present invention saves screen data to a file on a secondary storage medium when a screen display request is received, and the operator issues an instruction to restore the screen. In this case, screen recovery can be performed only on the terminal side by reading and displaying the saved screen data.

Therefore, the load on the line can be reduced, line efficiency can be improved, and processing time can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a local screen recovery method according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the screen display means in FIG. 1, and FIG. 3 is the input data judgment shown in FIG. It is a flowchart showing the operation of the means. 1...Request reception determining means, 2...Screen saving means-3
...Screen display means, 4.Reading means, 5.Input data determination means, 6.Screen data saving file,
7...CRT, 8...Keyboard.

Claims (1)

[Scope of Claims] An online system in which a screen display request is sent from a host side to a terminal side via a line, and the terminal side that receives this screen display request displays on the screen the screen data sent together with the screen display request. , a method for restoring the screen on the terminal side, comprising: receiving the screen display request sent from the host side, and determining whether or not the screen display request specifies that the screen can be restored. a determining means; when the request reception determining means determines that the screen display request specifies that the screen can be restored, the screen data sent along with the screen display request is saved to a secondary storage medium; screen saving means; screen display means for displaying screen data sent from the host side together with the screen display request on a screen; and reading the screen data saved in the secondary storage medium by the screen saving means. The terminal side includes a reading means and an input data determination means for determining what data is input by the operator, and the screen display means is configured to display the data input by the operator on the screen by the input data determination means. 1. A local screen recovery method characterized in that, when it is determined that the data indicates an instruction to do so, the reading means reads the screen data saved in the secondary storage medium and displays it on the screen.