a #cairo_pattern_t
the patch number to return data for
the control point number to return data for
return value for the x coordinate of the control point, or null
return value for the y coordinate of the control point, or null
cairo.types.Status.Success, or cairo.types.Status.InvalidIndex if patch_num or point_num is not valid for pattern. If pattern is not a mesh pattern, cairo.types.Status.PatternTypeMismatch is returned.
Gets the control point point_num of patch patch_num for a mesh pattern.
patch_num can range from 0 to n-1 where n is the number returned by cairo.global.meshPatternGetPatchCount.
Valid values for point_num are from 0 to 3 and identify the control points as explained in cairo.global.patternCreateMesh.