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public ref class SEHException : Exception
public ref class SEHException : System::Runtime::InteropServices::ExternalException
public class SEHException : Exception
public class SEHException : System.Runtime.InteropServices.ExternalException
[System.Serializable]
public class SEHException : System.Runtime.InteropServices.ExternalException
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public class SEHException : System.Runtime.InteropServices.ExternalException
type SEHException = class
inherit Exception
type SEHException = class
inherit ExternalException
[<System.Serializable>]
type SEHException = class
inherit ExternalException
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type SEHException = class
inherit ExternalException
Public Class SEHException
Inherits Exception
Public Class SEHException
Inherits ExternalException
Inheritance
SEHException
The
SEHException
class handles SEH errors that are thrown from unmanaged code, but that have not been mapped to another .NET Framework exception. The
SEHException
class also corresponds to the
HRESULT
E_FAIL
(0x80004005).
The .NET Framework often encounters unmanaged SEH exceptions that are automatically mapped to managed equivalents. There are two common unmanaged SEH exceptions:
STATUS_NO_MEMORY
exceptions are automatically mapped to the
OutOfMemoryException
class.
STATUS_ACCESS_VIOLATION
exceptions are automatically mapped as follows:
If
legacyNullReferencePolicy
is applied, all access violations are mapped to the
NullReferenceException
class.
If the address at which the read/write was attempted is not in JIT-compiled code, the exception is mapped to the
AccessViolationException
class.
If the address at which the read/write was attempted is in JIT-compiled code, but it is not in the OS Null partition area, the exception is mapped to the
AccessViolationException
class.
If there is no
legacyNullReferencePolicy
, and the address at which the read/write was attempted is in JIT-compiled code and in the OS Null partition area, the exception is mapped to the
NullReferenceException
class.
Any SEH exception that is not automatically mapped to a specific exception is mapped to the
SEHException
class by default.
Note that the
SEHException
class does not cause unmanaged C++ exception destructors to be called. To ensure that unmanaged C++ exception destructors are called, use the following syntax in the
catch
block.
Catch
' Handle catch here.
End Try
catch
// Handle catch here.
catch(…)
// Handle catch here.
Gets a collection of key/value pairs that provide additional user-defined information about the exception.
(Inherited from Exception)
When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.
(Inherited from Exception)
Obsolete.
When overridden in a derived class, sets the SerializationInfo with information about the exception.
(Inherited from Exception)
Obsolete.
Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.
(Inherited from Exception)
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