Memcpy in reverse order

yep thanks i read that but i read this its a lot of slow that because i ask for something for doing that fast, but i resolve the problem.

I can modified that before store in memory adding “-” in the header

< bi.biHeight = bmp.bmHeight;

bi.biHeight = - bmp.bmHeight;

And that solve the problem, i can use normally memcpy .

Nothing like ask for help for found the answer by oneself lol