HS Download - HTTP client library in C/C++ for Windows and Linux HS Download is an HTTP client library and Web download SDK for Windows and Linux. HS Download is implemented in C/C++ and allows a programmer to download files from web servers using a standard DLL API or HTTP client C static library. HS Download Library can be used from C/C++, C Sharp, VB or other languages. A programmer can use a standard windows DLL interface, a C Sharp wrapper DLL exposing a .NET class or a static HTTP client C library directly from a C/C++ application on Linux or Windows HS Download supports both standard HTTP and secure HTTPS file downloads HS Download Library is Royalty Free. Features HTTP and HTTPS client operation Download files asynchronously Multiple concurrent HTTP download sessions (maximum 64) HTTP Client library downloads files in its own threads, so that the caller's UI thread is not blocked Easy to use API for C/C++, C Sharp, VB and other languages Runs on Windows and Linux Full C source code and sample applications included for Windows and Linux Details of HTTP Client Library Implementation Conceptually a user application performs all work with the HS Download library in a sequence of operations. The API syntax depends on if a standard DLL API, a C Sharp wrapper API or a static C library API is used. These operations are: Initialize library (HsDownloadInit / HsDownloadDllInit / HsDownloadDllInitCs) Open file download (HsDownloadOpen / HsDownloadDllOpen / HsDownloadDllOpenCs) Periodically check for status (HsDownloadStatus() / HsDownloadDllStatus / HsDownloadDllStatusCs Close file download (HsDownloadClose / HsDownloadDllClose / HsDownloadDllCloseCs) De-Initialize library (HsDownloadCleanup / HsDownloadDllCleanup / HsDownloadDllCleanupCs)