Pattern.getColorStopRgba

cairo.types.Status getColorStopRgba(int  index,  out  double  offset,  out  double  red,  out  double  green,  out  double  blue,  out  double  alpha)

Gets the color and offset information at the given index for a gradient pattern. Values of index range from 0 to n-1 where n is the number returned by [cairo.pattern.Pattern.getColorStopCount].

Note that the color and alpha values are not premultiplied.

Parameters

`index`	index of the stop to return data for
`offset`	return value for the offset of the stop, or null
`red`	return value for red component of color, or null
`green`	return value for green component of color, or null
`blue`	return value for blue component of color, or null
`alpha`	return value for alpha component of color, or null

Returns

[cairo.types.Status.Success], or [cairo.types.Status.InvalidIndex]

if index is not valid for the given pattern. If the pattern is not a gradient pattern, [cairo.types.Status.PatternTypeMismatch] is returned.