MeshPattern.curveTo

Adds a cubic Bézier spline to the current patch from the current point to position (x3, y3) in pattern-space coordinates, using (x1, y1) and (x2, y2) as the control points. If the current patch has no current point before the call to cairo_mesh_pattern_curve_to(), this function will behave as if preceded by a call to cairo_mesh_pattern_move_to(pattern, x1, y1). After this call the current point will be (x3, y3). Note: If pattern is not a mesh pattern then pattern will be put into an error status with a status of CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If pattern has no current patch or the current patch already has 4 sides, pattern will be put into an error status with a status of CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. Since 1.12