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46 lines
2.2 KiB
Plaintext
46 lines
2.2 KiB
Plaintext
The _PALETTECOLOR statement sets the color value of a palette entry of an image using 256 color modes or less (4 or 8 BPP).
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{{PageSyntax}}
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:[[_PALETTECOLOR]] {{Parameter|index%}}, {{Parameter|colour&}}[, {{Parameter|imageHandle&}}]
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{{PageDescription}}
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* The {{Parameter|index%}} is the palette index(attribute) of the color to set, ranging from 0 to 15 (4 bit) or 0 to 255 (8 bit) color modes.
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* The [[LONG]] {{Parameter|colour&}} is the new color value to set using [[_RGB32]] or [[_RGBA32]] values or using [[HEX$ 32 Bit Values]].
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* If {{Parameter|imageHandle&}} is omitted, it is assumed to be the current write page.
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* If {{Parameter|index%}} is outside of image or screen mode attribute range, an [[ERROR Codes|illegal function call]] error will occur.
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* If {{Parameter|imageHandle&}} does not use a palette, an [[ERROR Codes|illegal function call]] error occurs. '''Will not work in 24/32 bit color palette modes!'''
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* If {{Parameter|imageHandle&}} is an invalid handle, an [[ERROR Codes|invalid handle]] error occurs.
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''Example:'' Creating custom background colors in SCREEN 0 that follow the text.
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{{CodeStart}}
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{{Cl|_PALETTECOLOR}} 1, {{Cl|_RGB32}}(255, 255, 255) ' white.
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{{Cl|_PALETTECOLOR}} 2, {{Cl|_RGB32}}(255, 170, 170) ' lighter red.
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{{Cl|_PALETTECOLOR}} 3, {{Cl|_RGB32}}(255, 85, 85) ' light red.
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{{Cl|_PALETTECOLOR}} 4, {{Cl|_RGB32}}(255, 0, 0) ' red.
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{{Cl|_PALETTECOLOR}} 5, {{Cl|_RGB32}}(170, 0, 0) ' dark red.
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{{Cl|_PALETTECOLOR}} 6, {{Cl|_RGB32}}(85, 0, 0) ' darker red.
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{{Cl|COLOR}} 0, 1: {{Cl|PRINT}} "black on white."
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{{Cl|COLOR}} 0, 2: {{Cl|PRINT}} "black on lighter red."
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{{Cl|COLOR}} 0, 3: {{Cl|PRINT}} "black on light red."
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{{Cl|COLOR}} 0, 4: {{Cl|PRINT}} "black on red."
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{{Cl|COLOR}} 0, 5: {{Cl|PRINT}} "black on dark red."
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{{Cl|COLOR}} 0, 6: {{Cl|PRINT}} "black on darker red.
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{{Cl|COLOR}} 1, 6: {{Cl|PRINT}} "white on darker red"
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{{Cl|COLOR}} 2, 6: {{Cl|PRINT}} "ligher red on darker red" '' ''
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{{CodeEnd}}
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: ''Note:'' _PALLETCOLOR expects [[LONG]] 32 bit color values, NOT [[_RGB]] or [[_RGBA]] palette attribute values.
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{{PageSeeAlso}}
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* [[_PALETTECOLOR (function)]]
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* [[PALETTE]], [[OUT]]
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* [[Images]]
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* [[HEX$ 32 Bit Values]]
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{{PageNavigation}} |