JPH0573258A - Display control system for crt screen - Google Patents

Abstract

PURPOSE:To display data in a high resolution mode which is prepared in a normal mode on the CRT screen without changing the number of digits and the number of lines of character display. CONSTITUTION:A CRT display mode discrimination part 100 discriminates whether it is a normal or a high resolution mode, executes the processing of an inter-character correction part 200 for one line and an inter-line correction part 300 for one line, and performs one-line display to the CRT. The inter- character correction part 200 for one line judges whether a character is a half size character or a full size character on the condition that a one line has 80 characters. In the case of a half size character, each one-dot blank is provided before and after the character. In the case of a full size character, each two-dot blank is provided before and after the character. The inter-line line correction part 300 for one line provides each 3-dot blank upside and downside the one line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control system for a CRT screen, and more particularly to a system for displaying the number of character digits created in the normal mode in a high resolution mode.

[0002]

2. Description of the Related Art Conventionally, a CRT screen display has a normal mode and a high resolution mode, and since the numbers of display dots are different in both modes, the CRT display mode is determined in advance when creating screen data. It is normal to keep it.

[0003]

DISCLOSURE OF THE INVENTION The conventional CRT described above
In the screen display, when the operation is performed between both modes, for example, even if you want to operate the data created assuming the normal mode in the high resolution mode, the number of characters displayed and the number of lines are different. Therefore, there was a problem that the display was disturbed.

An object of the present invention is to provide a method for displaying data created on the premise of the normal mode in the high resolution mode without changing the number of characters displayed in the normal mode and the number of lines.

[0005]

The first invention is a C for displaying a character created in a normal mode on a CRT screen in a high resolution mode without changing the number of digits and the number of lines.
A CRT that determines whether a normal mode or a high resolution mode is selected in a display control method on an RT screen and outputs a correction instruction only in the high resolution mode.
A display mode determination unit, a correction unit that receives a correction instruction and performs a predetermined one-line correction between characters and a one-line correction between lines, and a display of the corrected one line on the CRT. And a 1-line display section for performing.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

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

In this embodiment, as shown in FIG.
The RT display mode determination unit 100 determines whether the mode is the normal mode or the high resolution mode, and only in the high resolution mode, the processes of the 1-line character spacing correction unit 200 and the 1-line spacing correction unit 300 are executed to execute the 1-line display unit. At 400, one line is displayed on the CRT.

FIG. 2 shows a character-line correction unit 2 for one line according to the present invention.
It is a processing flowchart of 00. This is an example when 80 characters are used per line. It is determined whether the character is a half-width character or a full-width character. If it is a half-width character, leave a 1-dot blank before and after the character. The process of emptying a 2-dot blank is performed.

FIG. 3 shows a line spacing correction unit 30 for one line according to the present invention.
It is a processing flowchart of 0. This is an example of the case where one line has 20 lines, and a process of leaving a blank of 3 dots on each of the upper and lower sides of the line is performed.

FIG. 4 is a display image diagram of this embodiment.
(A) shows the case of normal mode, (b) shows the case of high resolution mode.

[0012]

As described above, according to the present invention, the data created on the premise of the normal mode can be displayed in the high resolution mode without changing the number of characters displayed in the normal mode and the number of lines. There is.

[Brief description of drawings]

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

FIG. 2 is a processing flowchart of a one-line character spacing correction unit 200 according to the present embodiment.

FIG. 3 is a processing flowchart of a one-line spacing correction unit 300 according to the present embodiment.

FIG. 4 is a display image diagram of the present embodiment.

[Explanation of symbols]

 100 CRT display mode determination unit 200 1-line character spacing correction unit 300 1-line spacing correction unit 400 1-line display unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuzo Yasuda 2-11-11 Takanawa, Minato-ku, Tokyo NEC Software Corporation

Claims (1)

[Claims] 1. A display control method for a CRT screen in which a character created in the normal mode is displayed on the CRT screen in the high resolution mode without changing the number of digits and the number of lines, the normal mode or the high resolution mode is selected. A CRT display mode determination unit that makes a determination and outputs a correction instruction only in the high resolution mode, and a correction that performs a predetermined correction between characters for one line and a predetermined correction between lines for receiving the correction instruction. And a 1-line display unit for displaying the corrected 1-line on the CRT, a display control method on a CRT screen.