otColorPaletteGetColors

uint otColorPaletteGetColors(harfbuzz.face.Face face,  uint  paletteIndex,  uint  startOffset,  ref  harfbuzz.types.Color[]  colors)

Fetches a list of the colors in a color palette.

After calling this function, colors will be filled with the palette colors. If colors is NULL, the function will just return the number of total colors without storing any actual colors; this can be used for allocating a buffer of suitable size before calling [harfbuzz.global.otColorPaletteGetColors] a second time.

The RGBA values in the palette are unpremultiplied. See the OpenType spec CPAL section for details.

Parameters

`face`	#hb_face_t to work upon
`paletteIndex`	the index of the color palette to query
`startOffset`	offset of the first color to retrieve
`colors`	The array of #hb_color_t records found

Returns

the total number of colors in the palette