Nana C++ Library   An open-source C++ framework project The Programmer's Guide

nana::paint::image_process::blend_interface Description The interface of blend algorithm. Model of None Public base classes None Members virtual ~blend_interface() = 0; The destruction interface virtual void process(const pixel_buffer & s_pixbuf, const nana::rectangle& s_r, pixel_buffer& d_pixbuf, const nana::point& d_pos, double fade_rate) const = 0; Blends two images with specified area. fade_rate is the blend rate in the range of [0, 1] File nana/paint/image_process_interface.hpp Notes 1, The semantics of the algorithm is:    d_pixbuf = d_pixbuf * fade_rate + s_pixbuf * (1 - fade_rate); 2, The area is always valid, it is calculated by Nana before passing to the algorithm. So the area could be applied without a check. See also None. Move to The Nana Programmer's Guide Main Page