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March 31, 2026 ยท View on GitHub

Vanara.PInvoke.WinHTTP

PInvoke API (methods, structures and constants) imported from Windows WinHTTP.dll.

  • Includes methods from winhttp.dll
  • Current NuGet release: NugetNuget

Dependencies

  • Vanara.PInvoke.Security
  • Vanara.PInvoke.Ws2_32

Methods - 100% API coverage (48 of 48 functions)

Native MethodHeaderManaged Method
WinHttpAddRequestHeaderswinhttp.hVanara.PInvoke.WinHTTP.WinHttpAddRequestHeaders
WinHttpAddRequestHeadersExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpAddRequestHeadersEx
WinHttpCheckPlatformwinhttp.hVanara.PInvoke.WinHTTP.WinHttpCheckPlatform
WinHttpCloseHandlewinhttp.hVanara.PInvoke.WinHTTP.WinHttpCloseHandle
WinHttpConnectwinhttp.hVanara.PInvoke.WinHTTP.WinHttpConnect
WinHttpCrackUrlwinhttp.hVanara.PInvoke.WinHTTP.WinHttpCrackUrl
WinHttpCreateProxyResolverwinhttp.hVanara.PInvoke.WinHTTP.WinHttpCreateProxyResolver
WinHttpCreateUrlwinhttp.hVanara.PInvoke.WinHTTP.WinHttpCreateUrl
WinHttpDetectAutoProxyConfigUrlwinhttp.hVanara.PInvoke.WinHTTP.WinHttpDetectAutoProxyConfigUrl
WinHttpFreeProxyResultwinhttp.hVanara.PInvoke.WinHTTP.WinHttpFreeProxyResult
WinHttpFreeProxySettingsExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpFreeProxySettingsEx
WinHttpFreeQueryConnectionGroupResultwinhttp.hVanara.PInvoke.WinHTTP.WinHttpFreeQueryConnectionGroupResult
WinHttpGetDefaultProxyConfigurationwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetDefaultProxyConfiguration
WinHttpGetIEProxyConfigForCurrentUserwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetIEProxyConfigForCurrentUser
WinHttpGetProxyForUrlwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetProxyForUrl
WinHttpGetProxyForUrlExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetProxyForUrlEx
WinHttpGetProxyResultwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetProxyResult
WinHttpGetProxySettingsExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetProxySettingsEx
WinHttpGetProxySettingsResultExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpGetProxySettingsResultEx
WinHttpOpenwinhttp.hVanara.PInvoke.WinHTTP.WinHttpOpen
WinHttpOpenRequestwinhttp.hVanara.PInvoke.WinHTTP.WinHttpOpenRequest
WinHttpQueryAuthSchemeswinhttp.hVanara.PInvoke.WinHTTP.WinHttpQueryAuthSchemes
WinHttpQueryConnectionGroupwinhttp.hVanara.PInvoke.WinHTTP.WinHttpQueryConnectionGroup
WinHttpQueryDataAvailablewinhttp.hVanara.PInvoke.WinHTTP.WinHttpQueryDataAvailable
WinHttpQueryHeaderswinhttp.hVanara.PInvoke.WinHTTP.WinHttpQueryHeaders
WinHttpQueryHeadersExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpQueryHeadersEx
WinHttpQueryOptionwinhttp.hVanara.PInvoke.WinHTTP.WinHttpQueryOption
WinHttpReadDatawinhttp.hVanara.PInvoke.WinHTTP.WinHttpReadData
WinHttpReadDataExwinhttp.hVanara.PInvoke.WinHTTP.WinHttpReadDataEx
WinHttpReceiveResponsewinhttp.hVanara.PInvoke.WinHTTP.WinHttpReceiveResponse
WinHttpRegisterProxyChangeNotificationwinhttp.hVanara.PInvoke.WinHTTP.WinHttpRegisterProxyChangeNotification
WinHttpResetAutoProxywinhttp.hVanara.PInvoke.WinHTTP.WinHttpResetAutoProxy
WinHttpSendRequestwinhttp.hVanara.PInvoke.WinHTTP.WinHttpSendRequest
WinHttpSetCredentialswinhttp.hVanara.PInvoke.WinHTTP.WinHttpSetCredentials
WinHttpSetDefaultProxyConfigurationwinhttp.hVanara.PInvoke.WinHTTP.WinHttpSetDefaultProxyConfiguration
WinHttpSetOptionwinhttp.hVanara.PInvoke.WinHTTP.WinHttpSetOption
WinHttpSetStatusCallbackwinhttp.hVanara.PInvoke.WinHTTP.WinHttpSetStatusCallback
WinHttpSetTimeoutswinhttp.hVanara.PInvoke.WinHTTP.WinHttpSetTimeouts
WinHttpTimeFromSystemTimewinhttp.hVanara.PInvoke.WinHTTP.WinHttpTimeFromSystemTime
WinHttpTimeToSystemTimewinhttp.hVanara.PInvoke.WinHTTP.WinHttpTimeToSystemTime
WinHttpUnregisterProxyChangeNotificationwinhttp.hVanara.PInvoke.WinHTTP.WinHttpUnregisterProxyChangeNotification
WinHttpWebSocketClosewinhttp.hVanara.PInvoke.WinHTTP.WinHttpWebSocketClose
WinHttpWebSocketCompleteUpgradewinhttp.hVanara.PInvoke.WinHTTP.WinHttpWebSocketCompleteUpgrade
WinHttpWebSocketQueryCloseStatuswinhttp.hVanara.PInvoke.WinHTTP.WinHttpWebSocketQueryCloseStatus
WinHttpWebSocketReceivewinhttp.hVanara.PInvoke.WinHTTP.WinHttpWebSocketReceive
WinHttpWebSocketSendwinhttp.hVanara.PInvoke.WinHTTP.WinHttpWebSocketSend
WinHttpWebSocketShutdownwinhttp.hVanara.PInvoke.WinHTTP.WinHttpWebSocketShutdown
WinHttpWriteDatawinhttp.hVanara.PInvoke.WinHTTP.WinHttpWriteData

Enumerations

Native EnumHeaderManaged Enum
ASYNC_RESULTwinhttp.hVanara.PInvoke.WinHTTP.ASYNC_RESULT
HTTP_STATUSwinhttp.hVanara.PInvoke.WinHTTP.HTTP_STATUS
ICUwinhttp.hVanara.PInvoke.WinHTTP.ICU
INTERNET_SCHEMEwinhttp.hVanara.PInvoke.WinHTTP.INTERNET_SCHEME
SECURITY_FLAGwinhttp.hVanara.PInvoke.WinHTTP.SECURITY_FLAG
WINHTTP_ACCESS_TYPEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_ACCESS_TYPE
WINHTTP_ADDREQ_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_ADDREQ_FLAG
WINHTTP_AUTH_SCHEMEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_AUTH_SCHEME
WINHTTP_AUTH_TARGETwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_AUTH_TARGET
WINHTTP_AUTO_DETECT_TYPEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_AUTO_DETECT_TYPE
WINHTTP_AUTOLOGON_SECURITY_LEVELwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_AUTOLOGON_SECURITY_LEVEL
WINHTTP_AUTOPROXYwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_AUTOPROXY
WINHTTP_CALLBACK_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CALLBACK_FLAG
WINHTTP_CALLBACK_STATUSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CALLBACK_STATUS
WINHTTP_CALLBACK_STATUS_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CALLBACK_STATUS_FLAG
WINHTTP_DECOMPRESSION_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_DECOMPRESSION_FLAG
WINHTTP_DISABLEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_DISABLE
WINHTTP_DISABLE_PASSPORTwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_DISABLE_PASSPORT
WINHTTP_ENABLE_SSLwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_ENABLE_SSL
WINHTTP_EXTENDED_HEADER_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_EXTENDED_HEADER_FLAG
WINHTTP_FLAG_SECURE_PROTOCOLwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_FLAG_SECURE_PROTOCOL
WINHTTP_HANDLE_TYPEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_HANDLE_TYPE
WINHTTP_MATCH_CONNECTION_GUID_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_MATCH_CONNECTION_GUID_FLAG
WINHTTP_OPEN_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_OPEN_FLAG
WINHTTP_OPENREQ_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_OPENREQ_FLAG
WINHTTP_OPTIONwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_OPTION
WINHTTP_OPTION_REDIRECT_POLICYwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_OPTION_REDIRECT_POLICY
WINHTTP_PROTOCOL_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROTOCOL_FLAG
WINHTTP_PROXY_SETTINGS_TYPEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_SETTINGS_TYPE
WINHTTP_PROXY_TYPEVanara.PInvoke.WinHTTP.WINHTTP_PROXY_TYPE
WINHTTP_QUERYwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_QUERY
WINHTTP_QUERY_CONNECTION_GROUP_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_QUERY_CONNECTION_GROUP_FLAG
WINHTTP_READ_DATA_EX_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_READ_DATA_EX_FLAG
WINHTTP_REQUEST_STAT_ENTRYwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_REQUEST_STAT_ENTRY
WINHTTP_REQUEST_STAT_FLAGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_REQUEST_STAT_FLAG
WINHTTP_REQUEST_TIME_ENTRYwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_REQUEST_TIME_ENTRY
WINHTTP_RESETwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_RESET
WINHTTP_SPNwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_SPN
WINHTTP_WEB_SOCKET_BUFFER_TYPEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_WEB_SOCKET_BUFFER_TYPE
WINHTTP_WEB_SOCKET_CLOSE_STATUSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_WEB_SOCKET_CLOSE_STATUS
WINHTTP_WEB_SOCKET_OPERATIONwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_WEB_SOCKET_OPERATION
WinHttpRequestAutoLogonPolicywinhttp.hVanara.PInvoke.WinHTTP.WinHttpRequestAutoLogonPolicy
WinHttpRequestOptionwinhttp.hVanara.PInvoke.WinHTTP.WinHttpRequestOption

Structures

Native StructureHeaderManaged Structure
HINTERNETVanara.PInvoke.WinHTTP.HINTERNET
HTTP_VERSION_INFOwinhttp.hVanara.PInvoke.WinHTTP.HTTP_VERSION_INFO
WINHTTP_ASYNC_RESULTwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_ASYNC_RESULT
WINHTTP_AUTOPROXY_OPTIONSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_AUTOPROXY_OPTIONS
WINHTTP_CERTIFICATE_INFOwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CERTIFICATE_INFO
WINHTTP_CONNECTION_GROUPwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CONNECTION_GROUP
WINHTTP_CONNECTION_INFOwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CONNECTION_INFO
WINHTTP_CREDSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CREDS
WINHTTP_CREDS_EXwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CREDS_EX
WINHTTP_CURRENT_USER_IE_PROXY_CONFIGwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_CURRENT_USER_IE_PROXY_CONFIG
WINHTTP_EXTENDED_HEADERwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_EXTENDED_HEADER
WINHTTP_HEADER_NAMEwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_HEADER_NAME
WINHTTP_HOST_CONNECTION_GROUPwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_HOST_CONNECTION_GROUP
WINHTTP_MATCH_CONNECTION_GUIDwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_MATCH_CONNECTION_GUID
WINHTTP_PROXY_CHANGE_REGISTRATION_HANDLEVanara.PInvoke.WinHTTP.WINHTTP_PROXY_CHANGE_REGISTRATION_HANDLE
WINHTTP_PROXY_INFOwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_INFO
WINHTTP_PROXY_INFO_INwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_INFO_IN
WINHTTP_PROXY_NETWORKING_KEYVanara.PInvoke.WinHTTP.WINHTTP_PROXY_NETWORKING_KEY
WINHTTP_PROXY_RESULTwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_RESULT
WINHTTP_PROXY_RESULT_ENTRYwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_RESULT_ENTRY
WINHTTP_PROXY_SETTINGSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_SETTINGS
WINHTTP_PROXY_SETTINGS_EXwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_SETTINGS_EX
WINHTTP_PROXY_SETTINGS_EX_MGDwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_SETTINGS_EX_MGD
WINHTTP_PROXY_SETTINGS_PARAMwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_PROXY_SETTINGS_PARAM
WINHTTP_QUERY_CONNECTION_GROUP_RESULTwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_QUERY_CONNECTION_GROUP_RESULT
WINHTTP_REQUEST_STATSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_REQUEST_STATS
WINHTTP_REQUEST_TIMESwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_REQUEST_TIMES
WINHTTP_SECURITY_INFOwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_SECURITY_INFO
WINHTTP_URL_COMPONENTSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_URL_COMPONENTS
WINHTTP_URL_COMPONENTS_INwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_URL_COMPONENTS_IN
WINHTTP_WEB_SOCKET_ASYNC_RESULTwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_WEB_SOCKET_ASYNC_RESULT
WINHTTP_WEB_SOCKET_STATUSwinhttp.hVanara.PInvoke.WinHTTP.WINHTTP_WEB_SOCKET_STATUS

Classes

Native ClassHeaderManaged Class
SafeHINTERNETVanara.PInvoke.WinHTTP.SafeHINTERNET