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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

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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
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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

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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
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