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The latter method is considerably faster, and allows quick reading of the text buffer, for which reason it is preferred for advanced TUI programs. The VGA text buffer is located at physical memory address 0xB8000. [14] Since this address is usually used by 16-bit x86 processes operating in real-mode, it is also the first half of memory segment ...
Under Windows 9x, the screen buffer mirrors the structure of VGA text buffer, with two bytes per character cell: one byte for character code, one byte for attributes (the character must be in OEM character set, the attribute is with high-intensity background/no blinking). This speeds up operation considerably if the actual VGA text mode is used.
Text mode is a computer display mode in which content is internally represented on a computer screen in terms of characters rather than individual pixels.Typically, the screen consists of a uniform rectangular grid of character cells, each of which contains one of the characters of a character set; at the same time, contrasted to graphics mode or other kinds of computer graphics modes.
The Windows console environment is notorious for its emulation of certain EGA/VGA text mode features, particularly random access to the text buffer, even if the application runs in a window. On the other hand, programs running under Windows (both native and DOS applications) have much less control of the display and keyboard than Linux and DOS ...
If the monochrome card was added to the PC as a second card besides a normal VGA card for debugging purposes, this resulted in slow VGA performance. Microsoft recommended in its Writing HOT Games for Microsoft Windows (1994) to remove the monochrome card in such a setup for maximum speed of the VGA card. [14]
A man who returned to his Alaska hometown took to social media to document the inflated prices of food and drinks, including an $11 box of cereal. Still, he says it's someplace he'd live again.
Daily average mortgage rates on popular terms are rising as of Friday, December 20, 2024, with sharp moves higher for 30-year terms edging closer to 6.90% — an average 20 basis points higher ...
DWM works in different ways depending on the operating system (Windows 7 or Windows Vista) and on the version of the graphics drivers it uses (WDDM 1.0 or 1.1). Under Windows 7 and with WDDM 1.1 drivers, DWM only writes the program's buffer to the video RAM, even if it is a graphics device interface (GDI) program.