IoSetThreadHardErrorMode function

The IoSetThreadHardErrorMode routine enables or disables hard error reporting for the current thread.


BOOLEAN IoSetThreadHardErrorMode(
  _In_ BOOLEAN EnableHardErrors



Specifies whether hard error reporting to the user should be enabled or disabled for this thread. A value of TRUE enables hard error reporting. FALSE disables it.

Return Value

IoSetThreadHardErrorMode returns TRUE if hard errors were enabled from this thread before this routine completed execution. Otherwise, this routine returns FALSE.


If hard errors are disabled for a given thread, calls to IoRaiseHardError will not display a message to the user indicating that a serious error has occurred. In addition, the IRP that is passed to IoRaiseHardError is completed without any data being copied into user buffers. Calling IoRaiseInformationalHardError after disabling hard errors causes that routine to always return FALSE for this thread.


Windows version Available in Microsoft Windows 2000 and later versions of Windows.
Target Platform Universal
Header ntddk.h (include Ntddk.h)
Library NtosKrnl.lib
DLL NtosKrnl.exe

See Also



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