LanguagePreferences Class
Provides support for language service-specific preferences.
This API is not CLS-compliant. The CLS-compliant alternative is [None].
Inheritance Hierarchy
System.Object
Microsoft.VisualStudio.Package.LanguagePreferences
Namespace: Microsoft.VisualStudio.Package
Assemblies: Microsoft.VisualStudio.Package.LanguageService.10.0 (in Microsoft.VisualStudio.Package.LanguageService.10.0.dll)
Microsoft.VisualStudio.Package.LanguageService.11.0 (in Microsoft.VisualStudio.Package.LanguageService.11.0.dll)
Microsoft.VisualStudio.Package.LanguageService.9.0 (in Microsoft.VisualStudio.Package.LanguageService.9.0.dll)
Microsoft.VisualStudio.Package.LanguageService (in Microsoft.VisualStudio.Package.LanguageService.dll)
Syntax
'宣告
<CLSCompliantAttribute(False)> _
<GuidAttribute("934a92fd-b63a-49c7-9284-11aec8c1e03f")> _
<ComVisibleAttribute(True)> _
Public Class LanguagePreferences _
Implements IVsTextManagerEvents2, IDisposable
[CLSCompliantAttribute(false)]
[GuidAttribute("934a92fd-b63a-49c7-9284-11aec8c1e03f")]
[ComVisibleAttribute(true)]
public class LanguagePreferences : IVsTextManagerEvents2,
IDisposable
The LanguagePreferences type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
.gif "Public method") |
LanguagePreferences() | Initializes a new instance of the LanguagePreferences class (default initialization only). |
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LanguagePreferences(IServiceProvider, Guid, String) | Initializes a new instance of the LanguagePreferences class (this is the preferred method). |
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Properties
| Name | Description | |
|---|---|---|
.gif "Public property") |
AutoListMembers | Gets or sets whether members are automatically listed as part of IntelliSense support. |
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AutoOutlining | Gets or sets whether or not auto-outlining is supported outlining (this requires parser support for hidden regions). |
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CodeSenseDelay | Gets or sets the number of milliseconds the user must hold the cursor over an identifier before initiating any IntelliSense operation. |
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CutCopyBlankLines | Gets or sets whether to include spaces on blank lines when cutting and copying. |
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EnableAsyncCompletion | Gets or sets if background parsing is supported. |
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EnableCodeSense | Gets or sets whether or not IntelliSense is supported. |
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EnableCommenting | Gets or sets whether or not blocks of code can be commented and uncommented. |
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EnableFormatSelection | Gets or sets whether or not code can be formatted. |
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EnableLeftClickForURLs | Gets or sets whether or not URLs in the code can be navigated to by a simple click. |
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EnableMatchBraces | Gets or sets whether or not matching braces are supported. |
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EnableMatchBracesAtCaret | Gets or sets whether or not matching braces can be shown while typing a matching brace. |
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EnableQuickInfo | Gets or sets whether or not the IntelliSense Quick Info operation is supported. |
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EnableShowMatchingBrace | Gets or sets whether or not the text included in the span of the matching pair is shown in the status bar. |
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HideAdvancedMembers | Gets or sets whether or not advanced members are hidden in the IntelliSense members list. |
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HighlightMatchingBraceFlags | Gets or sets the flags for highlighting matching braces. |
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IndentSize | Gets or sets the number of spaces to indent when formatting source. |
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IndentStyle | Gets or sets the style used for formatting sections of text. |
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InsertTabs | Gets or sets whether or not to insert tabs instead of spaces when formatting sections of text. |
.gif "Protected property") |
LanguageName | Gets or sets the name the language service is registered under. |
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LineNumbers | Gets or sets whether or not line numbers are to be shown. |
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MaxErrorMessages | Gets or sets the maximum number of error messages that can be shown at any one time. |
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MaxRegionTime | Gets or sets the maximum region time. |
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ParameterInformation | Gets or sets whether or not the IntelliSense method tip operation is supported. |
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ShowNavigationBar | Gets or sets whether or not drop-down bars are to be shown. |
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Site | Gets or sets the service provider. |
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TabSize | Gets or sets the number of spaces a single tab covers. |
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VirtualSpace | Gets or sets whether or not the editor should assume spaces at the end of all lines. |
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WordWrap | Gets or sets whether or not word wrapping is enabled. |
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WordWrapGlyphs | Gets or sets whether or not a glyph should be shown for a line that is word-wrapped. |
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Methods
| Name | Description | |
|---|---|---|
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Apply | Applies all changes made to the preferences. |
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Dispose | Cleans up any allocated resources before the object is destroyed. |
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Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
.gif "Protected method") |
Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetBooleanValue | Obtains a boolean value from the specified registry entry. |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetIntegerValue | Gets an integer value from the specified registry entry. |
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GetLanguagePreferences | Gets the modifiable user language settings from Visual Studio. |
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GetSite | Gets the service provider. |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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Init | Initializes LanguagePreferences. |
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InitMachinePreferences | Gets language service-specific settings from the registry. |
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InitUserPreferences | Gets user-modifiable settings. |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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OnRegisterMarkerType | Called when a new marker type is registered with Visual Studio. |
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OnRegisterView | Called when a view is registered. |
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OnReplaceAllInFilesBegin | Called when the Replace All in Files operation has begun. |
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OnReplaceAllInFilesEnd | Called when the Replace All In Files operation has ended. |
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OnUnregisterView | Called when a view is closed. |
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OnUserPreferencesChanged2 | Called when a user preference has been changed. |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
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Remarks
The base class manages preferences specific to your language service as well as general preferences the user can affect from the Tools -> Options -> Text Editor category.
The following registry entries are specific to language services and are already reflected in properties in the base class. These registry entries are stored in the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\<X.Y>\Languages\Language Services\<Language Name>.
<X.Y> is the version of Visual Studio (for example, 8.0 or 8.0Exp).
<Language Name> is the name of your language.
Registry entry |
Type |
Value |
Description |
|---|---|---|---|
CodeSense |
DWORD |
<0 or 1> |
1 indicates support for IntelliSense. |
MatchBraces |
DWORD |
<0 or 1> |
1 indicates support for matching braces. |
QuickInfo |
DWORD |
<0 or 1> |
1 indicates support for the Quick Info IntelliSense operation. |
ShowMatchingBraces |
DWORD |
<0 or 1> |
1 indicates that the text included in the span for a matching pair of language elements is shown in the status bar. |
MatchBracesAtCaret |
DWORD |
<0 or 1> |
1 indicates that matching braces can be shown while typing a matching brace. |
MaxErrorMessages |
DWORD |
<number> |
The maximum number of error messages that can be put into the Error List Options window from the parser. |
CodeSenseDelay |
DWORD |
<number> |
The amount of time in milliseconds the user must hold the cursor over an identifier before triggering an IntelliSense operation. |
EnableAsyncCompletion |
DWORD |
<0 or 1> |
1 indicates support for asynchronous or background parsing. |
EnableCommenting |
DWORD |
<0 or 1> |
1 indicates support for commenting and uncommenting code in a single operation. |
EnableFormatSelection |
DWORD |
<0 or 1> |
1 indicates support for formatting the source text. |
AutoOutlining |
DWORD |
<0 or 1> |
1 indicates support for automatic outlining (this requires parser support for hidden regions). |
MaxRegions |
DWORD |
<number> |
The maximum number of hidden regions that can be handled in a single file. |
Notes to Implementers
If you have any language-specific properties in addition to those already supported by the base class, you have to derive a class from LanguagePreferences and return an instance of your class from the GetLanguagePreferences method. Be sure to call the Initialize method before returning your language preferences instance. In addition, you must override InitUserPreferences, OnUserPreferencesChanged2, and Apply methods to support accessing your specified properties.
It is assumed that a single instance of the LanguagePreferences object is maintained for your language service. In this way, any changes the user makes to the properties are dynamically updated in your preferences and from there, throughout the language service.
Notes to Callers
An instance of this class is returned from the LanguageService method GetLanguagePreferences. A number of properties are referenced throughout the managed package framework version of the language service classes.
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.