GWBASIC User's Manual

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GW-BASIC <strong>User's</strong> Guide SCREEN 1 In mode 1, the COLOR statement has a unique syntax that includes a palette argument, which is an odd or even integer expression. This argument determines the set of display colors to use when displaying particular color numbers. For hardware configurations that do not have an IBM® Enhanced Graphics Adapter (EGA), the default color settings for the palette parameter are equivalent to the following: COLOR ,0 'Same as the next three PALETTE statements '1 = green, 2 = red, 3 = yellow COLOR ,1 'Same as the next three PALETTE statements '1 = cyan, 2 = magenta, 3 = white With the EGA, the default color settings for the palette parameter are equivalent to the following: COLOR ,0 'Same as the next three PALETTE statements PALETTE 1,2 'Attribute 1 = color 3 (green) PALETTE 2,4 'Attribute 2 = color 5 (red) PALETTE 3,6 'Attribute 3 = color 6 (brown) COLOR ,1 'Same as the next three PALETTE statements PALETTE 1,3 'Attribute 1 = color 3 (cyan) PALETTE 2,5 'Attribute 2 = color 5 (magenta) PALETTE 3,7 'Attribute 3 = color 15 (white) Note that a COLOR statement will override previous PALETTE statements. SCREEN 2 No effect. An "Illegal function call" error message occurs if COLOR is used in this mode. SCREEN 7- In these modes, no border color can be specified. The graphics background is SCREEN 10 given by the background color number, which must be in the valid range of color numbers appropriate to the screen mode. See the SCREEN statement reference pages for more details. The foreground color argument is the default line drawing color. Arguments outside valid numeric ranges result in "Illegal function call" errors. The foreground color may be the same as the background color, making displayed characters invisible. The default background color is black, or color number 0, for all display hardware configurations and all screen modes. With the Enhanced Graphics Adapter (EGA) installed, the PALETTE statement gives you flexibility in assigning different display colors to the actual color-number ranges for the foreground, background, and border colors discussed above. See the PALETTE statement reference pages for more details. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/COLOR.html (2 of 3)28/03/2004 21.29.16
GW-BASIC <strong>User's</strong> Guide For more information, see CIRCLE, DRAW, LINE, PAINT, PALETTE, PRESET, PSET, and SCREEN Examples: The following series of examples show COLOR statements and their effects in the various screen modes: SCREEN 0 COLOR 1, 2, 3 'foreground=1, background=2, border=3 SCREEN 1 COLOR 1, 0 'foreground=1, even palette number COLOR 2, 1 'foreground=2, odd palette number SCREEN 7 COLOR 3, 5 'foreground=3, background=5 SCREEN 8 COLOR 6, 7 'foreground=6, background=7 SCREEN 9 COLOR 1, 2 'foreground=1, background=2 file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/COLOR.html (3 of 3)28/03/2004 21.29.16
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GWBASIC User's Manual User's Guide
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GWBASIC User's Manual FILES Command
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GWBASIC User's Manual PSET Statemen
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GW-BASIC User's Guide The Glossary
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GW-BASIC User's Guide RUN FILENAME
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Page 125 and 126: GW-BASIC User's Guide BSAVE Command
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GW-BASIC User's Guide ENVIRON$ Func
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GW-BASIC User's Guide SHELL Stateme
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GW-BASIC User's Guide EOF Function
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GW-BASIC User's Guide EXP Function
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GW-BASIC User's Guide GET Statement
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GW-BASIC User's Guide IOCTL Stateme
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GW-BASIC User's Guide KILL Command
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GW-BASIC User's Guide MID$ Function
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GW-BASIC User's Guide LEN FUNCTION
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GW-BASIC User's Guide LLIST Command
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GW-BASIC User's Guide LOC Function
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GW-BASIC User's Guide LOG Function
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GW-BASIC User's Guide NAME Command
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GW-BASIC User's Guide SGN Function
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GW-BASIC User's Guide SOUND Stateme
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GW-BASIC User's Guide VAL Function
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GW-BASIC User's Guide WRITE Stateme
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