c++ encoding jpg for posting on header

i need someone to code my a function to encode my c++ jpg to binary to i can send it in the header while posting it to a ebsite -----------------------------7d01ecf406a6 Content-Disposition: form-data; name="fileaaa"; filename="C:\Inetpub\wwwroot\Upload\[login to view URL]" Content-Type: image/gif (binary content) <---- jpg binary content have to be here -----------------------------7d01ecf406a6-- i give 30$ for that function and i might pay more $$ for future help