GDI+ uses ARGB values to represent color.
GDI+ adds anti-aliased 2D graphics, textures, floating point coordinates, gradient shading, more complex path management, bicubic filtering, intrinsic support for modern graphics-file formats like JPEG and PNG, and support for composition of affine transformations in the 2D view pipeline. With the introduction of Windows XP, the C++ based software-only GDI+ subsystem was introduced to replace certain GDI functions.
