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)

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