meshPatternSetCornerColorRgba

void meshPatternSetCornerColorRgba(cairo.pattern.Pattern pattern,  uint  cornerNum,  double  red,  double  green,  double  blue,  double  alpha)

Sets the color of a corner of the current patch in a mesh pattern.

The color is specified in the same way as in cairo.context.Context.setSourceRgba.

Valid values for corner_num are from 0 to 3 and identify the corners as explained in cairo.global.patternCreateMesh.

If pattern is not a mesh pattern then pattern will be put

into an error status with a status of cairo.types.Status.PatternTypeMismatch. If corner_num is not valid, pattern will be put into an error status with a status of cairo.types.Status.InvalidIndex. If pattern has no current patch, pattern will be put into an error status with a status of cairo.types.Status.InvalidMeshConstruction.

`pattern`	a #cairo_pattern_t
`cornerNum`	the corner to set the color for
`red`	red component of color
`green`	green component of color
`blue`	blue component of color
`alpha`	alpha component of color