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Windows Event Log

Overview of the Windows Event Log technology.

To develop Windows Event Log, you need these headers:

For programming guidance for this technology, see:

Enumerations

 
EVT_CHANNEL_CLOCK_TYPE

Defines the values that specify the type of time stamp to use when logging events channel.
EVT_CHANNEL_CONFIG_PROPERTY_ID

Defines the identifiers that identify the configuration properties of a channel.
EVT_CHANNEL_ISOLATION_TYPE

Defines the default access permissions to apply to the channel.
EVT_CHANNEL_REFERENCE_FLAGS

Defines the values that specify how a channel is referenced.
EVT_CHANNEL_SID_TYPE

Defines the values that determine whether the event includes the security identifier (SID) of the principal that logged the event.
EVT_CHANNEL_TYPE

Defines the type of a channel.
EVT_EVENT_METADATA_PROPERTY_ID

Defines the identifiers that identify the metadata properties of an event definition.
EVT_EVENT_PROPERTY_ID

Defines the values that determine the query information to retrieve.
EVT_EXPORTLOG_FLAGS

Defines values that indicate whether the events come from a channel or log file.
EVT_FORMAT_MESSAGE_FLAGS

Defines the values that specify the message string from the event to format.
EVT_LOG_PROPERTY_ID

Defines the identifiers that identify the log file metadata properties of a channel or log file.
EVT_LOGIN_CLASS

Defines the types of connection methods you can use to connect to the remote computer.
EVT_OPEN_LOG_FLAGS

Defines the values that specify whether to open a channel or exported log file.
EVT_PUBLISHER_METADATA_PROPERTY_ID

Defines the identifiers that identify the metadata properties of a provider.
EVT_QUERY_FLAGS

Defines the values that specify how to return the query results and whether you are query against a channel or log file.
EVT_QUERY_PROPERTY_ID

Defines the identifiers that identify the query information that you can retrieve.
EVT_RENDER_CONTEXT_FLAGS

Defines the values that specify the type of information to access from the event.
EVT_RENDER_FLAGS

Defines the values that specify what to render.
EVT_RPC_LOGIN_FLAGS

Defines the types of authentication that you can use to authenticate the user when connecting to a remote computer.
EVT_SEEK_FLAGS

Defines the relative position in the result set from which to seek.
EVT_SUBSCRIBE_FLAGS

Defines the possible values that specify when to start subscribing to events.
EVT_SUBSCRIBE_NOTIFY_ACTION

Defines the possible types of data that the subscription service can deliver to your callback.
EVT_SYSTEM_PROPERTY_ID

Defines the identifiers that identify the system-specific properties of an event.
EVT_VARIANT_TYPE

Defines the possible data types of a variant data item.

Functions

 
EVT_SUBSCRIBE_CALLBACK

Implement this callback if you call the EvtSubscribe function to receive events that match your query.
EvtArchiveExportedLog

Adds localized strings to the events in the specified log file.
EvtCancel

Cancels all pending operations on a handle.
EvtClearLog

Removes all events from the specified channel and writes them to the target log file.
EvtClose

Closes an open handle.
EvtCreateBookmark

Creates a bookmark that identifies an event in a channel.
EvtCreateRenderContext

Creates a context that specifies the information in the event that you want to render.
EvtExportLog

Copies events from the specified channel or log file and writes them to the target log file.
EvtFormatMessage

Formats a message string. (EvtFormatMessage)
EvtGetChannelConfigProperty

Gets the specified channel configuration property.
EvtGetEventInfo

Gets information that identifies the structured XML query that selected the event and the channel or log file that contained the event.
EvtGetEventMetadataProperty

Gets the specified event metadata property.
EvtGetExtendedStatus

Gets a text message that contains the extended error information for the current error.
EvtGetLogInfo

Gets information about a channel or log file.
EvtGetObjectArrayProperty

Gets a provider metadata property from the specified object in the array.
EvtGetObjectArraySize

Gets the number of elements in the array of objects.
EvtGetPublisherMetadataProperty

Gets the specified provider metadata property.
EvtGetQueryInfo

Gets information about a query that you ran that identifies the list of channels or log files that the query attempted to access. The function also gets a list of return codes that indicates the success or failure of each access.
EvtNext

Gets the next event from the query or subscription results.
EvtNextChannelPath

Gets a channel name from the enumerator.
EvtNextEventMetadata

Gets an event definition from the enumerator.
EvtNextPublisherId

Gets the identifier of a provider from the enumerator.
EvtOpenChannelConfig

Gets a handle that you use to read or modify a channel's configuration property.
EvtOpenChannelEnum

Gets a handle that you use to enumerate the list of channels that are registered on the computer.
EvtOpenEventMetadataEnum

Gets a handle that you use to enumerate the list of events that the provider defines.
EvtOpenLog

Gets a handle to a channel or log file that you can then use to get information about the channel or log file.
EvtOpenPublisherEnum

Gets a handle that you use to enumerate the list of registered providers on the computer.
EvtOpenPublisherMetadata

Gets a handle that you use to read the specified provider's metadata.
EvtOpenSession

Establishes a connection to a remote computer that you can use when calling the other Windows Event Log functions.
EvtQuery

Runs a query to retrieve events from a channel or log file that match the specified query criteria.
EvtRender

Renders an XML fragment based on the rendering context that you specify.
EvtSaveChannelConfig

Saves the changes made to a channel's configuration.
EvtSeek

Seeks to a specific event in a query result set.
EvtSetChannelConfigProperty

Sets the specified configuration property of a channel.
EvtSubscribe

Creates a subscription that will receive current and future events from a channel or log file that match the specified query criteria.
EvtUpdateBookmark

Updates the bookmark with information that identifies the specified event.

Structures

 
EVT_RPC_LOGIN

Contains the information used to connect to a remote computer.
EVT_VARIANT

Contains event data or property values.