The Block Elements Unicode block includes shading characters. The image below is provided as a quick reference for these symbols on systems that are unable to display them directly: Official Unicode Consortium code chart (PDF) In many Unicode fonts only the subset that is also available in the IBM PC character set (see below) will exist, due to it being defined as part of the WGL4 character set. Unicode includes 128 such characters in the Box Drawing block. Other types of box-drawing characters are block elements, shade characters, and terminal graphic characters these can be used for filling regions of the screen and portraying drop shadows. Some recent embedded systems also use proprietary character sets, usually extensions to ISO 8859 character sets, which include box-drawing characters or other special symbols. However, they are still useful for command-line interfaces and plaintext comments within source code. In graphical user interfaces, these characters are much less useful as it is more simple and appropriate to draw lines and rectangles directly with graphical APIs. Box-drawing characters therefore typically only work well with monospaced fonts. These characters are characterized by being designed to be connected horizontally and/or vertically with adjacent characters, which requires proper alignment. Midnight Commander using box-drawing characters in a terminal emulatorīox-drawing characters, also known as line-drawing characters, are a form of semigraphics widely used in text user interfaces to draw various geometric frames and boxes. Without proper rendering support, you may see question marks, boxes, or other symbols. This article contains special characters.
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