private static extern cg.CGAffineTransform __cgaffinetransforminvert(cg.CGAffineTransform transform);
public static cg.CGAffineTransform Invert(cg.CGAffineTransform transform) { return __cgaffinetransforminvert(transform); }
private static extern cg.CGAffineTransform __cgaffinetransformconcat(cg.CGAffineTransform transform, cg.CGAffineTransform other);
public static cg.CGAffineTransform Concat(cg.CGAffineTransform transform, cg.CGAffineTransform other) { return __cgaffinetransformconcat(transform, other); }