最終更新:2017-11-30 (木) 17:35:47 (2347d)
WinHttpOpen
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initializes, for an application, the use of WinHTTP functions and returns a WinHTTP-session handle.
https://msdn.microsoft.com/en-us/library/windows/desktop/aa384098(v=vs.85).aspx
HINTERNET WINAPI WinHttpOpen( _In_opt_ LPCWSTR pwszUserAgent, _In_ DWORD dwAccessType, _In_ LPCWSTR pwszProxyName, _In_ LPCWSTR pwszProxyBypass, _In_ DWORD dwFlags );