JPH0277874A - External character display system - Google Patents

Abstract

PURPOSE:To eliminate such a sense of incongruity that it takes a long time to display external characters by reading patterns corresponding to indicated in-use character codes out of an external storage device before a user program makes a display request. CONSTITUTION:The application program 1 indicates the external character codes to be used and requests a display control part 2 to read external display patterns in a display memory 3. The display control part 2, therefore, reads the patterns corresponding to the indicated external character codes out of the external storage device 4 and stores them in the display memory 3, and the control part displays internal characters first when receiving a display request by an application program and displays external characters by referring to the display memory 3 without accessing the external storage device when there are the external characters present. Consequently, an external display control part can displays the external characters by referring to the display memory without accessing the external storage device.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a foreign affairs display method, and in particular, to increasing the display speed when foreign character codes and corresponding display patterns are stored in an external storage device such as a word processor. Regarding the external character display method that has been implemented.

[Conventional technology]

Conventionally, this type of external character display method determines whether the pattern corresponding to the external character code has already been read into the display memory from the external storage device, and if it has not been read, accesses the external storage device each time, The pattern was read into the display memory and then displayed.

[Problem to be solved by the invention]

In the conventional external character display method, when displaying a external character that is not in the display memory, the external character pattern is read from the external storage device as needed and then displayed, so the external character appears to be displayed a while after the internal character is displayed. , which has the disadvantage of making the user feel uncomfortable.

[Means to solve the problem]

The private character display method of the present invention stores a private character pattern corresponding to a private character code in an external storage device in advance, and reads a pattern corresponding to the character code to be used, which is notified by a user program before a display request, from the external storage device in advance. It is configured with a function to store the data, and a display memory to store the data.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The outline of this embodiment is that it has a function of importing a pattern into the display memory before displaying it by notifying the external character code to be used in advance from the application program. Therefore, by using this function in the application program, the external character display control unit can display the external characters without accessing the external storage device.
This allows the display to be performed by referring to the display memory.

The present embodiment includes an application program 1, a display control section 2, a display memory 3, and an external storage device 4.

Next, we will explain how this works. The application program 1 specifies the external character code to be used for the display control unit 2 and requests the display memory 3 to read the external character display pattern. Therefore, the display control unit 2 reads the pattern corresponding to the specified external character code from the external storage device 4 and stores it in the display memory 3, and also displays the square character when receiving a display request from the application program 1. Then, if there is a custom character, the display memory 3 is referred to and the custom character is displayed without accessing the external storage device. Also,
With this function, the application only needs to specify a custom character code, and the custom character display control program searches the external storage device for the corresponding pattern in advance and loads it into the display memory.

〔Effect of the invention〕

As explained above, the present invention specifies the custom character code of the custom character to be displayed before the application program requests the display control unit to display it, and the display pattern is read in the display memory in advance. Since there is no need to access the external storage device, the user does not feel uncomfortable that it takes a long time to display external characters.

Furthermore, in the present invention, when storing a display pattern in the display memory, the application program only needs to specify the external character code, so there is no need to search for the display pattern from an external storage device, making the processing of the application program easier. effective.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Application program, 2...Display control unit, 3...Display memory, 4...External storage device.

Claims (1)

[Claims] A function to pre-store a custom character pattern corresponding to a custom character code in an external storage device, and to read a pattern corresponding to the character code to be used that is notified from the user program before a display request from the external storage device, and to store this. An external character display method characterized by comprising a display memory for displaying.