How can i use SDK??

an SDK is just a collection of header files, library files and/or cpp files, and hopefully some documentation. To use these things, you need to include the appropriate header files, and link to the appropriate library files.

Header files are included in your .cpp files (usually at the top) using the #include macro, linking to library files depends on your compiler--in Visual C++ it is under the Project/Settings menu option on the Linker tab.

There should be some sample files that come with whatever SDK you are trying to use, look at them & try to run them.

If you have any more specific questions--feel free to post them here.

--michael