AfterSetFileInfo Event
Fires after information about a file or directory is changed.
Syntax
public event OnAfterSetFileInfoHandler OnAfterSetFileInfo; public delegate void OnAfterSetFileInfoHandler(object sender, CbfilterAfterSetFileInfoEventArgs e); public class CbfilterAfterSetFileInfoEventArgs : EventArgs { public string FileName { get; } public int FileInformationClass { get; } public IntPtr Buffer { get; } public int BufferLength { get; } public int ValidBytes { get; } public int Status { get; set; } public IntPtr FileContext { get; set; } public IntPtr HandleContext { get; set; } public int ResultCode { get; set; } }
Public Event OnAfterSetFileInfo As OnAfterSetFileInfoHandler Public Delegate Sub OnAfterSetFileInfoHandler(sender As Object, e As CbfilterAfterSetFileInfoEventArgs) Public Class CbfilterAfterSetFileInfoEventArgs Inherits EventArgs Public ReadOnly Property FileName As String Public ReadOnly Property FileInformationClass As Integer Public ReadOnly Property Buffer As IntPtr Public ReadOnly Property BufferLength As Integer Public ReadOnly Property ValidBytes As Integer Public Property Status As Integer Public Property FileContext As IntPtr Public Property HandleContext As IntPtr Public Property ResultCode As Integer End Class
Remarks
This event fires after information about the file or directory specified by FileName is changed; typically in response to the Windows API's NtSetInformationFile function.
Applications only need to handle this event if they've added a standard filter rule that includes the FS_CE_AFTER_SET_FILE_INFO flag.
The FileInformationClass parameter indicates what kind of file information was set. Please refer to the NtSetInformationFile function's documentation for more information about possible values.
The Buffer parameter points to a memory buffer that, if the request was successful, contains the new file information. The BufferLength and ValidBytes parameters reflect the capacity of Buffer and the length of the data it contains (respectively), in bytes; ValidBytes may be less than BufferLength. Please refer to the Buffer Parameters topic for more information on how to work with memory buffer event parameters.
The format of the data itself is determined by the specified FileInformationClass; please refer to the NtSetInformationFile function's documentation for more information.
The Status parameter contains an NT status code that indicates the outcome of the operation; 0 indicates success. To convert this value to a Win32 error code, call the NtStatusToWin32Error method. Please note that this event won't fire for failed requests unless the ProcessFailedRequests property is enabled. Applications may change this parameter's value if they want a different NT status code to be returned.
The FileContext and HandleContext parameters are placeholders for application-defined data associated with the file and specific handle, respectively. Please refer to the Contexts topic for more information.
The ResultCode parameter will always be 0 when the event is fired. If the event cannot be handled in a "successful" manner for some reason (e.g., a resource isn't available, security checks failed, etc.), set it to a non-zero value to report an appropriate error. Please refer to the Error Reporting and Handling topic for more information.
This event is fired synchronously; please refer to the Event Types topic for more information.