Class EnvironmentChangedEventArgs

Event arguments for the WM_SETTINGCHANGE message

Inheritance

System.Object

EnvironmentChangedEventArgs

Namespace: Dapplo.Windows.Desktop

Assembly: Dapplo.Windows.dll

Syntax

public class EnvironmentChangedEventArgs : EventArgs

Properties

Area

When the system sends this message as a result of a SystemParametersInfo call, lParam is a pointer to a string that indicates the area containing the system parameter that was changed. This parameter does not usually indicate which specific system parameter changed. (Note that some applications send this message with lParam set to NULL.) In general, when you receive this message, you should check and reload any system parameter settings that are used by your application. This string can be the name of a registry key or the name of a section in the Win.ini file. When the string is a registry name, it typically indicates only the leaf node in the registry, not the full path. When the system sends this message as a result of a change in policy settings, this parameter points to the string "Policy". When the system sends this message as a result of a change in locale settings, this parameter points to the string "intl". To effect a change in the environment variables for the system or the user, broadcast this message with lParam set to the string "Environment".

Declaration

public string Area { get; }

Property Value

Type	Description
System.String

SystemParametersInfoAction

When the system sends this message as a result of a SystemParametersInfo call, the wParam parameter is the value of the uiAction parameter passed to the SystemParametersInfo function. For a list of values, see SystemParametersInfo. When the system sends this message as a result of a change in policy settings, this parameter indicates the type of policy that was applied. This value is 1 if computer policy was applied or zero if user policy was applied. When the system sends this message as a result of a change in locale settings, this parameter is zero. When an application sends this message, this parameter must be NULL.

Declaration

public SystemParametersInfoActions SystemParametersInfoAction { get; }

Property Value

Type	Description
SystemParametersInfoActions

Methods

Create(SystemParametersInfoActions, String)

Factory for the EnvironmentChangedEventArgs

Declaration

public static EnvironmentChangedEventArgs Create(SystemParametersInfoActions systemParametersInfoAction = null, string area = null)

Parameters

Type	Name	Description
SystemParametersInfoActions	systemParametersInfoAction
System.String	area

Returns

Type	Description
EnvironmentChangedEventArgs