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SystemEvents.LowMemory Event

Definition

Caution

The LowMemory event has been deprecated and is not supported.

Caution

This event has been deprecated. http://go.microsoft.com/fwlink/?linkid=14202

Caution

This event has been deprecated. https://go.microsoft.com/fwlink/?linkid=14202

Occurs when the system is running out of available RAM.

C#
[System.ComponentModel.Browsable(false)]
[System.Obsolete("The LowMemory event has been deprecated and is not supported.")]
public static event EventHandler? LowMemory;
C#
public static event EventHandler LowMemory;
C#
[System.ComponentModel.Browsable(false)]
[System.Obsolete("This event has been deprecated. http://go.microsoft.com/fwlink/?linkid=14202")]
public static event EventHandler LowMemory;
C#
[System.ComponentModel.Browsable(false)]
[System.Obsolete("This event has been deprecated. https://go.microsoft.com/fwlink/?linkid=14202")]
public static event EventHandler LowMemory;
C#
[System.ComponentModel.Browsable(false)]
[System.Obsolete("This event has been deprecated. https://go.microsoft.com/fwlink/?linkid=14202")]
public static event EventHandler? LowMemory;

Event Type

Attributes

Exceptions

System event notifications are not supported under the current context. Server processes, for example, might not support global system event notifications.

The attempt to create a system events window thread did not succeed.

Remarks

This event wraps the WM_COMPACTING message. This message is sent to all top-level windows when the system detects more than 12.5 percent of system time over a 30- to 60-second interval is being spent compacting memory. This indicates that system memory is low.

Σημείωση

This event is only raised if the message pump is running. In a Windows service, unless a hidden form is used or the message pump has been started manually, this event will not be raised. For a code example that shows how to handle system events by using a hidden form in a Windows service, see the SystemEvents class.

Προσοχή

Because this is a static event, you must detach your event handlers when your application is disposed, or memory leaks will result.

Notes to Callers

This message is provided only for compatibility with 16-bit Windows-based applications.

Applies to

Προϊόν Εκδόσεις (Καταργήθηκε)
.NET (8 (package-provided), 9 (package-provided))
.NET Framework 1.1 (2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1)
.NET Standard (2.0 (package-provided))
Windows Desktop (3.0, 3.1, 5, 6, 7, 8, 9)