![]() ![]() Returned if connection to the server failed. Returned by the HttpRequest object if a requested operation cannot be performed before calling the Send method. Returned by the HttpRequest object if a requested operation cannot be performed before calling the Open method. Returned by the HttpRequest object if a requested operation cannot be performed after calling the Send method. ![]() Returned by the HttpRequest object if a specified option cannot be requested after the Open method has been called. Returned by WinHttpDetectAutoProx圜onfigUrl if WinHTTP was unable to discover the URL of the Proxy Auto-Configuration (PAC) file.Īn error occurred executing the script code in the Proxy Auto-Configuration (PAC) file. Returned by WinHttpGetProxyForUrl when a proxy for the specified URL cannot be located. The WinHTTP functions also return Windows error messages where appropriate. The error values listed below are returned by GetLastError when one of the Microsoft Windows HTTP Services (WinHTTP) functions fails, and are also returned in the lower 16 bits of HRESULT error returns from the WinHttpRequest object.Įrror values whose names begin with "ERROR_WINHTTP_" are specific to the WinHTTP functions.
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