Difference between revisions of "COPYPALETTE"

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The {{KW|_COPYPALETTE}} statement copies the color palette entries from one image to another.
The {{KW|_COPYPALETTE}} statement copies the color palette intensities from one 4 or 8 BPP image to another image or a [[_NEWIMAGE]] screen page using 256 or less colors.




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{{PageDescription}}
{{PageDescription}}
* The {{KW|_COPYPALETTE}} statement copies the color palette entries from {{Parameter|sourceImageHandle&}} to {{Parameter|destinationImageHandle&}}.
* Palette Intensity settings are '''NOT''' used by 24/32 bit images! '''Only use with 4 or 8 BPP images!'''
* [[_PIXELSIZE]] function returns of 1 indicate that _COPYPALETTE can be used. 4 indicates 24/32 bit!
* If {{Parameter|sourceImageHandle&}} is omitted, it is assumed to be the current read page.
* If {{Parameter|sourceImageHandle&}} is omitted, it is assumed to be the current read page.
* If {{Parameter|destinationImageHandle&}} is omitted, it is assumed to be the current write page.
* If {{Parameter|destinationImageHandle&}} is omitted, it is assumed to be the current write page.
* If either of the images specified by {{Parameter|sourceImageHandle&}} or {{Parameter|destinationImageHandle&}} do not use a palette, an [[ERROR Codes|illegal function call]] error is returned.
* If either of the images specified by {{Parameter|sourceImageHandle&}} or {{Parameter|destinationImageHandle&}} do not use a palette, an [[ERROR Codes|illegal function call]] error is returned.
* If either {{Parameter|sourceImageHandle&}} or {{Parameter|destinationImageHandle&}} is an invalid handle, an [[ERROR Codes|invalid handle]] error is returned.
* If either {{Parameter|sourceImageHandle&}} or {{Parameter|destinationImageHandle&}} is an invalid handle, an [[ERROR Codes|invalid handle]] error is returned.
* When loading image files, it is necessary to adopt the color palette of the image or it will not have the correct colors!
* When loading 4 or 8 BPP image files, it is necessary to adopt the color palette of the image or it may not have the correct colors!




{{PageSeeAlso}}
{{PageSeeAlso}}
* {{KW|_LOADIMAGE}}
* {{KW|_LOADIMAGE}}
* {{KW|PALETTE}}
* {{KW|_PIXELSIZE}}
* {{KW|_PALETTECOLOR}}, {{KW|_PALETTECOLOR (function)}}
* {{KW|_PALETTECOLOR}}, {{KW|_PALETTECOLOR (function)}}
* [[Images]]
* {{KW|PALETTE}}, [[Images]]




{{PageNavigation}}
{{PageNavigation}}

Revision as of 22:20, 18 September 2010

The _COPYPALETTE statement copies the color palette intensities from one 4 or 8 BPP image to another image or a _NEWIMAGE screen page using 256 or less colors.


Syntax

_COPYPALETTE [sourceImageHandle&[, destinationImageHandle&]]


Description

  • Palette Intensity settings are NOT used by 24/32 bit images! Only use with 4 or 8 BPP images!
  • _PIXELSIZE function returns of 1 indicate that _COPYPALETTE can be used. 4 indicates 24/32 bit!
  • If sourceImageHandle& is omitted, it is assumed to be the current read page.
  • If destinationImageHandle& is omitted, it is assumed to be the current write page.
  • If either of the images specified by sourceImageHandle& or destinationImageHandle& do not use a palette, an illegal function call error is returned.
  • If either sourceImageHandle& or destinationImageHandle& is an invalid handle, an invalid handle error is returned.
  • When loading 4 or 8 BPP image files, it is necessary to adopt the color palette of the image or it may not have the correct colors!


See also



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