TIWFilePicker

By using TIWFilePicker file is selected and shown in the box of the component but how I can upload the file to the server side on specific folder. please explain with some code ( in C++ if possible ).

Thank you

TIWFilePicker is an UI component for local file selection. It performs selection only, not actual upload.
The IntraWeb framework / Atozed software has sample code how to upload a file.