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Procon's High Visibility Font Package - a Hi-Visibility Font

The Standard MS-DOS VGA Font

The standard MS-DOS™ bitmap font - available on most VGA adaptors - leaves much to be desired - particularly for programmers, screen designers, trainers using video projectors, and users with heavy data entry needs.

The original font was better optimised for printing than screen display. Its continued use on screens is an anachronism. Virtually all printed text is now output with a built-in printer font or a Windows' font.

The Windows Terminal Font

The Windows™ equivalent - the fixed pitch Terminal font designed to replicate the MS-DOS VGA font in MS-DOS boxes and Windows NT/2000/XP/Vista/7 Terminals - is no better. To make matters worse, it is provided in too few point sizes to produce a working box or window that is large enough to use efficiently on high resolution monitors.

These problems are worse for users with impaired vision - or for anyone working in poor light conditions or using laptop screens.

Windows' Fixed Pitch Fonts

Programmers using development environments like Microsoft's Visual Studio™, Embarcadero's Delphi™, CodeWright™, ED for Windows™, MultiEdit™, WinEdit™, Visual SlickEdit™, and Office Developers using Microsoft's VBA Editor, also find that Windows provides a very limited range of monospaced fonts - particularly raster fonts which are more readable than scalable fonts (Truetype and Type 1) at small point sizes.

What is the HVFont?

PROCON 's HVFont is a more legible monospaced font. The font design is optimised for screen display. It can be used in MS-DOS mode, Windows fullscreen or windowed DOS Boxes, Windows' Editors, Spreadsheets, Database Managers and similar applications.

The HVFont is easier to read than any standard Windows' font

Click here to see a more detailed comparison of the HVFont with the fonts available in Windows.

How does the HVFont differ from other fonts?

The HVFont differs from the MS-DOS standard, the Windows' Terminal font - and similar fixed pitch bitmap and TrueType fonts - in several respects:-

It is larger and "stronger". By reducing the font "leading" (the space between lines) the HVFont is able to use larger character glyphs and thicker stroke lines.

It uses a special Modern Sans Serif typeface optimised for screen display of monospaced fonts.

The SPACE character has a dot in two corners. This produces a "visual grid" in blank areas of the screen and input fields. While this effect may appear unusual at first, it is of considerable assistance in assessing field widths, aligning columns of text, designing screens and coding layouts, etc. (An alternative version of the fonts is provided with the blank space character - for users who find the "visual grid" disconcerting.)

The arithmetic PLUS, MINUS and EQUALS signs are much clearer.

The FORWARD and BACK SLASH characters extend below character baselines to more clearly distinguish them from other glyphs.

A clearly "Slashed" ZERO digit helps avoid confusion with the Capital 'O'.

The Lowercase 'L' has a clearly extended base - to help avoid confusion with the ONE digit and Capital 'I' characters.

The COLON and SEMICOLON symbols are particularly strong - and distinct.

The VERTICAL BAR - |  is thicker than normal.

The CURLY BRACES - {} - and the SQUARE BRACKETS - [] - descend below the character baseline.

A EURO Currency symbol replaces the obsolete Spanish Cedilla character. The ASCII value (128) matches the value (0128) normally used for the Euro symbol in Windows ANSI fonts. (To enter it key [Alt][0128]).

The UNDERLINE has been raised so that it more closely matches the character baseline - reflecting the practical fact that it not used in screen fonts to produce underlining but is commonly used as another character in program code variable names, etc.

The Binary NUL character - which normally looks just like the SPACE character - appears as a thin hollow box. (Of little interest to most users - but a great aid to programmers and screen designers as it visually highlights the presence of embedded NULs).

The ASCII 255 character - which also normally looks just like a SPACE - appears as a small Centred Dot.

The REVERSE SPACE character (ASCII 219) - normally represented as a solid block - has the left column of pixels set. An aid to programmers and screen designers who sometimes use this character to layout "dark space" on screens. The visible left boundary simplifies character counting and cursor positioning.

In all other respects the HVFont follows the MS-DOS standard - it uses the PC-8 eight bit character set (Codepage 437).

How is the HVFont distributed?

The DOS version of the HVFont is supplied as a DOS TSR (Terminate and Stay Resident) program. It can be used in standalone MS-DOS modes, in full screen DOS boxes under Windows, and in full screen Windows terminal modes. The font should display clearly on any monitor with a VGA compatible video card.

The HVFont  "Full Screen" package provides a more complete solution for those working with a PC in any operating system. It includes font images and files to permanently replace the fonts in the Operating System's Codepage Information Files - and even the PC's Video Card ROM BIOS.

The Windows bitmap versions of the HVFont are supplied in two FON files. One supplements the Terminal raster fonts (supplied with Windows) and the other provides additional point sizes - and special widths - for use in Windows' text editors and other data entry applications requiring a maximally legible monospaced screen font.

The TrueType HVEdit and HVTerminal versions of the HVFont are supplied as standard TTF files.

The LaserJet Printer version of the HVFont is supplied in a ZIP archive containing many individual downloadable PCL soft fonts. This package is for users who need supplementary fixed pitch printer fonts, in sizes from 8 characters per inch (CPI) to 50 CPI, for applications running under MS-DOS, Windows, Unix or Linux terminal sessions.

Click here to purchase a licence for one of PROCON's HVFont packages.

Purchase HVFonts by Credit Card

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Last modified: 14 March 2017
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