本文整理汇总了C#中System.Management.ManagementOperationObserver.GetNewSink方法的典型用法代码示例。如果您正苦于以下问题：C# ManagementOperationObserver.GetNewSink方法的具体用法？C# ManagementOperationObserver.GetNewSink怎么用？C# ManagementOperationObserver.GetNewSink使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Management.ManagementOperationObserver的用法示例。
在下文中一共展示了ManagementOperationObserver.GetNewSink方法的13个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Get
}//Get()
//********************************************
//Get() asynchronous
//********************************************
/// <summary>
/// <para>Invokes the WMI query, asynchronously, and binds to a watcher to deliver the results.</para>
/// </summary>
/// <param name='watcher'>The watcher that raises events triggered by the operation. </param>
public void Get(ManagementOperationObserver watcher)
{
if (null == watcher)
throw new ArgumentNullException ("watcher");
Initialize ();
IWbemServices wbemServices = scope.GetIWbemServices ();
EnumerationOptions enumOptions = (EnumerationOptions)options.Clone();
// Ensure we switch off ReturnImmediately as this is invalid for async calls
enumOptions.ReturnImmediately = false;
// If someone has registered for progress, make sure we flag it
if (watcher.HaveListenersForProgress)
enumOptions.SendStatus = true;
WmiEventSink sink = watcher.GetNewSink (scope, enumOptions.Context);
SecurityHandler securityHandler = scope.GetSecurityHandler();
int status = (int)ManagementStatus.NoError;
try
{
//If this is a simple SelectQuery (className only), and the enumerateDeep is set, we have
//to find out whether this is a class enumeration or instance enumeration and call CreateInstanceEnum/
//CreateClassEnum appropriately, because with ExecQuery we can't do a deep enumeration.
if ((query.GetType() == typeof(SelectQuery)) &&
(((SelectQuery)query).Condition == null) &&
(((SelectQuery)query).SelectedProperties == null) &&
(options.EnumerateDeep == true))
{
//Need to make sure that we're not passing invalid flags to enumeration APIs.
//The only flags not valid for enumerations are EnsureLocatable & PrototypeOnly.
enumOptions.EnsureLocatable = false; enumOptions.PrototypeOnly = false;
if (((SelectQuery)query).IsSchemaQuery == false) //deep instance enumeration
{
status = scope.GetSecuredIWbemServicesHandler( wbemServices ).CreateInstanceEnumAsync_(((SelectQuery)query).ClassName,
enumOptions.Flags,
enumOptions.GetContext(),
sink.Stub);
}
else
{
status = scope.GetSecuredIWbemServicesHandler( wbemServices ).CreateClassEnumAsync_(((SelectQuery)query).ClassName,
enumOptions.Flags,
enumOptions.GetContext(),
sink.Stub);
}
}
else //we can use ExecQuery
{
//Make sure the EnumerateDeep flag bit is turned off because it's invalid for queries
enumOptions.EnumerateDeep = true;
status = scope.GetSecuredIWbemServicesHandler( wbemServices ).ExecQueryAsync_(
query.QueryLanguage,
query.QueryString,
enumOptions.Flags,
enumOptions.GetContext(),
sink.Stub);
}
}
catch (COMException e)
{
//
watcher.RemoveSink (sink);
ManagementException.ThrowWithExtendedInfo (e);
}
finally
{
securityHandler.Reset();
}
if ((status & 0xfffff000) == 0x80041000)
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus)status);
}
else if ((status & 0x80000000) != 0)
{
Marshal.ThrowExceptionForHR(status);
}
}示例2: Get
public void Get(ManagementOperationObserver watcher)
{
if (watcher == null)
{
throw new ArgumentNullException("watcher");
}
this.Initialize();
IWbemServices iWbemServices = this.scope.GetIWbemServices();
EnumerationOptions options = (EnumerationOptions) this.options.Clone();
options.ReturnImmediately = false;
if (watcher.HaveListenersForProgress)
{
options.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(this.scope, options.Context);
SecurityHandler securityHandler = this.scope.GetSecurityHandler();
int errorCode = 0;
try
{
if (((this.query.GetType() == typeof(SelectQuery)) && (((SelectQuery) this.query).Condition == null)) && ((((SelectQuery) this.query).SelectedProperties == null) && this.options.EnumerateDeep))
{
options.EnsureLocatable = false;
options.PrototypeOnly = false;
if (!((SelectQuery) this.query).IsSchemaQuery)
{
errorCode = this.scope.GetSecuredIWbemServicesHandler(iWbemServices).CreateInstanceEnumAsync_(((SelectQuery) this.query).ClassName, options.Flags, options.GetContext(), newSink.Stub);
}
else
{
errorCode = this.scope.GetSecuredIWbemServicesHandler(iWbemServices).CreateClassEnumAsync_(((SelectQuery) this.query).ClassName, options.Flags, options.GetContext(), newSink.Stub);
}
}
else
{
options.EnumerateDeep = true;
errorCode = this.scope.GetSecuredIWbemServicesHandler(iWbemServices).ExecQueryAsync_(this.query.QueryLanguage, this.query.QueryString, options.Flags, options.GetContext(), newSink.Stub);
}
}
catch (COMException exception)
{
watcher.RemoveSink(newSink);
ManagementException.ThrowWithExtendedInfo(exception);
}
finally
{
securityHandler.Reset();
}
if ((errorCode & 0xfffff000L) == 0x80041000L)
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus) errorCode);
}
else if ((errorCode & 0x80000000L) != 0L)
{
Marshal.ThrowExceptionForHR(errorCode);
}
}示例3: GetRelationshipClasses
/// <summary>
/// <para>Retrieves relationship classes that relate the class according to the specified
/// options, asynchronously.</para>
/// </summary>
/// <param name='watcher'>The handler for progress and results of the asynchronous operation.</param>
/// <param name='relationshipClass'><para>The class from which all resulting relationship classes must derive.</para></param>
/// <param name=' relationshipQualifier'>The qualifier which the resulting relationship classes must have.</param>
/// <param name=' thisRole'>The role which the source class must have in the resulting relationship classes.</param>
/// <param name=' options'> The options for retrieving the results.</param>
/// <returns>
/// <para>A collection of association classes
/// relating this class to others, according to the given options.</para>
/// </returns>
public void GetRelationshipClasses(
ManagementOperationObserver watcher,
string relationshipClass,
string relationshipQualifier,
string thisRole,
EnumerationOptions options)
{
if ((null == Path) || (null == Path.Path) || (0 == Path.Path.Length))
throw new InvalidOperationException();
if (null == watcher)
throw new ArgumentNullException("watcher");
else
{
Initialize ( true ) ;
EnumerationOptions o =
(null != options) ? (EnumerationOptions)options.Clone() : new EnumerationOptions();
//Ensure EnumerateDeep flag is turned off as it's invalid for queries
o.EnumerateDeep = true;
// Ensure we switch off ReturnImmediately as this is invalid for async calls
o.ReturnImmediately = false;
// If someone has registered for progress, make sure we flag it
if (watcher.HaveListenersForProgress)
o.SendStatus = true;
WmiEventSink sink = watcher.GetNewSink(Scope, o.Context);
RelationshipQuery q = new RelationshipQuery(true, Path.Path, relationshipClass,
relationshipQualifier, thisRole);
SecurityHandler securityHandler = null;
int status = (int)ManagementStatus.NoError;
securityHandler = Scope.GetSecurityHandler();
status = scope.GetSecuredIWbemServicesHandler(Scope.GetIWbemServices()).ExecQueryAsync_(
q.QueryLanguage,
q.QueryString,
o.Flags,
o.GetContext(),
sink.Stub);
if (securityHandler != null)
securityHandler.Reset();
if (status < 0)
{
watcher.RemoveSink(sink);
if ((status & 0xfffff000) == 0x80041000)
ManagementException.ThrowWithExtendedInfo((ManagementStatus)status);
else
Marshal.ThrowExceptionForHR(status);
}
}
}示例4: GetSubclasses
/// <summary>
/// <para>Retrieves all classes derived from this class, asynchronously, using the specified
/// options.</para>
/// </summary>
/// <param name='watcher'>The object to handle the asynchronous operation's progress. </param>
/// <param name='options'>The specified additional options to use in the derived class retrieval.</param>
public void GetSubclasses(ManagementOperationObserver watcher,
EnumerationOptions options)
{
if (null == watcher)
throw new ArgumentNullException("watcher");
if (null == Path)
throw new InvalidOperationException();
Initialize ( false ) ;
EnumerationOptions o = (null == options) ? new EnumerationOptions() :
(EnumerationOptions)options.Clone();
//Need to make sure that we're not passing invalid flags to enumeration APIs.
//The only flags in EnumerationOptions not valid for enumerations are EnsureLocatable & PrototypeOnly.
o.EnsureLocatable = false; o.PrototypeOnly = false;
// Ensure we switch off ReturnImmediately as this is invalid for async calls
o.ReturnImmediately = false;
// If someone has registered for progress, make sure we flag it
if (watcher.HaveListenersForProgress)
o.SendStatus = true;
WmiEventSink sink = watcher.GetNewSink(Scope, o.Context);
SecurityHandler securityHandler = null;
int status = (int)ManagementStatus.NoError;
securityHandler = Scope.GetSecurityHandler();
status = scope.GetSecuredIWbemServicesHandler(Scope.GetIWbemServices() ).CreateClassEnumAsync_(ClassName,
o.Flags,
o.GetContext(),
sink.Stub);
if (securityHandler != null)
securityHandler.Reset();
if (status < 0)
{
watcher.RemoveSink(sink);
if ((status & 0xfffff000) == 0x80041000)
ManagementException.ThrowWithExtendedInfo((ManagementStatus)status);
else
Marshal.ThrowExceptionForHR(status);
}
}示例5: GetRelated
public void GetRelated(ManagementOperationObserver watcher, string relatedClass, string relationshipClass, string relationshipQualifier, string relatedQualifier, string relatedRole, string thisRole, bool classDefinitionsOnly, EnumerationOptions options)
{
EnumerationOptions enumerationOption;
if (this.path == null || this.path.Path.Length == 0)
{
throw new InvalidOperationException();
}
else
{
this.Initialize(true);
if (watcher != null)
{
if (options != null)
{
enumerationOption = (EnumerationOptions)options.Clone();
}
else
{
enumerationOption = new EnumerationOptions();
}
EnumerationOptions enumerationOption1 = enumerationOption;
enumerationOption1.ReturnImmediately = false;
if (watcher.HaveListenersForProgress)
{
enumerationOption1.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(this.scope, enumerationOption1.Context);
RelatedObjectQuery relatedObjectQuery = new RelatedObjectQuery(this.path.Path, relatedClass, relationshipClass, relationshipQualifier, relatedQualifier, relatedRole, thisRole, classDefinitionsOnly);
enumerationOption1.EnumerateDeep = true;
SecurityHandler securityHandler = this.scope.GetSecurityHandler();
int num = this.scope.GetSecuredIWbemServicesHandler(this.scope.GetIWbemServices()).ExecQueryAsync_(relatedObjectQuery.QueryLanguage, relatedObjectQuery.QueryString, enumerationOption1.Flags, enumerationOption1.GetContext(), newSink.Stub);
securityHandler.Reset();
if (num < 0)
{
watcher.RemoveSink(newSink);
if (((long)num & (long)-4096) != (long)-2147217408)
{
Marshal.ThrowExceptionForHR(num);
}
else
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus)num);
return;
}
}
return;
}
else
{
throw new ArgumentNullException("watcher");
}
}
}示例6: Get
public void Get(ManagementOperationObserver watcher)
{
if (watcher != null)
{
this.Initialize();
IWbemServices wbemServices = this.scope.GetIWbemServices();
EnumerationOptions enumerationOption = (EnumerationOptions)this.options.Clone();
enumerationOption.ReturnImmediately = false;
if (watcher.HaveListenersForProgress)
{
enumerationOption.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(this.scope, enumerationOption.Context);
SecurityHandler securityHandler = this.scope.GetSecurityHandler();
int num = 0;
try
{
try
{
if (!(this.query.GetType() == typeof(SelectQuery)) || ((SelectQuery)this.query).Condition != null || ((SelectQuery)this.query).SelectedProperties != null || !this.options.EnumerateDeep)
{
enumerationOption.EnumerateDeep = true;
num = this.scope.GetSecuredIWbemServicesHandler(wbemServices).ExecQueryAsync_(this.query.QueryLanguage, this.query.QueryString, enumerationOption.Flags, enumerationOption.GetContext(), newSink.Stub);
}
else
{
enumerationOption.EnsureLocatable = false;
enumerationOption.PrototypeOnly = false;
if (((SelectQuery)this.query).IsSchemaQuery)
{
num = this.scope.GetSecuredIWbemServicesHandler(wbemServices).CreateClassEnumAsync_(((SelectQuery)this.query).ClassName, enumerationOption.Flags, enumerationOption.GetContext(), newSink.Stub);
}
else
{
num = this.scope.GetSecuredIWbemServicesHandler(wbemServices).CreateInstanceEnumAsync_(((SelectQuery)this.query).ClassName, enumerationOption.Flags, enumerationOption.GetContext(), newSink.Stub);
}
}
}
catch (COMException cOMException1)
{
COMException cOMException = cOMException1;
watcher.RemoveSink(newSink);
ManagementException.ThrowWithExtendedInfo(cOMException);
}
}
finally
{
securityHandler.Reset();
}
if (((long)num & (long)-4096) != (long)-2147217408)
{
if (((long)num & (long)-2147483648) != (long)0)
{
Marshal.ThrowExceptionForHR(num);
}
return;
}
else
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus)num);
return;
}
}
else
{
throw new ArgumentNullException("watcher");
}
}示例7: InvokeMethod
public void InvokeMethod(ManagementOperationObserver watcher, string methodName, ManagementBaseObject inParameters, InvokeMethodOptions options)
{
InvokeMethodOptions invokeMethodOption;
if (this.path == null || this.path.Path.Length == 0)
{
throw new InvalidOperationException();
}
else
{
if (watcher != null)
{
if (methodName != null)
{
this.Initialize(false);
if (options != null)
{
invokeMethodOption = (InvokeMethodOptions)options.Clone();
}
else
{
invokeMethodOption = new InvokeMethodOptions();
}
InvokeMethodOptions invokeMethodOption1 = invokeMethodOption;
if (watcher.HaveListenersForProgress)
{
invokeMethodOption1.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(this.scope, invokeMethodOption1.Context);
SecurityHandler securityHandler = this.scope.GetSecurityHandler();
IWbemClassObjectFreeThreaded wbemClassObjectFreeThreaded = null;
if (inParameters != null)
{
wbemClassObjectFreeThreaded = inParameters.wbemObject;
}
int num = this.scope.GetSecuredIWbemServicesHandler(this.scope.GetIWbemServices()).ExecMethodAsync_(this.path.RelativePath, methodName, invokeMethodOption1.Flags, invokeMethodOption1.GetContext(), wbemClassObjectFreeThreaded, newSink.Stub);
if (securityHandler != null)
{
securityHandler.Reset();
}
if (num < 0)
{
watcher.RemoveSink(newSink);
if (((long)num & (long)-4096) != (long)-2147217408)
{
Marshal.ThrowExceptionForHR(num);
}
else
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus)num);
return;
}
}
return;
}
else
{
throw new ArgumentNullException("methodName");
}
}
else
{
throw new ArgumentNullException("watcher");
}
}
}示例8: Delete
public void Delete(ManagementOperationObserver watcher, DeleteOptions options)
{
int num;
DeleteOptions deleteOption;
if (this.path == null || this.path.Path.Length == 0)
{
throw new InvalidOperationException();
}
else
{
if (watcher != null)
{
this.Initialize(false);
if (options != null)
{
deleteOption = (DeleteOptions)options.Clone();
}
else
{
deleteOption = new DeleteOptions();
}
DeleteOptions deleteOption1 = deleteOption;
if (watcher.HaveListenersForProgress)
{
deleteOption1.SendStatus = true;
}
IWbemServices wbemServices = this.scope.GetIWbemServices();
WmiEventSink newSink = watcher.GetNewSink(this.scope, deleteOption1.Context);
SecurityHandler securityHandler = this.scope.GetSecurityHandler();
if (!base.IsClass)
{
num = this.scope.GetSecuredIWbemServicesHandler(wbemServices).DeleteInstanceAsync_(this.path.RelativePath, deleteOption1.Flags, deleteOption1.GetContext(), newSink.Stub);
}
else
{
num = this.scope.GetSecuredIWbemServicesHandler(wbemServices).DeleteClassAsync_(this.path.RelativePath, deleteOption1.Flags, deleteOption1.GetContext(), newSink.Stub);
}
if (securityHandler != null)
{
securityHandler.Reset();
}
if (num < 0)
{
watcher.RemoveSink(newSink);
if (((long)num & (long)-4096) != (long)-2147217408)
{
Marshal.ThrowExceptionForHR(num);
}
else
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus)num);
return;
}
}
return;
}
else
{
throw new ArgumentNullException("watcher");
}
}
}示例9: GetSubclasses
public void GetSubclasses(ManagementOperationObserver watcher, EnumerationOptions options)
{
if (watcher == null)
{
throw new ArgumentNullException("watcher");
}
if (this.Path == null)
{
throw new InvalidOperationException();
}
this.Initialize(false);
EnumerationOptions options2 = (options == null) ? new EnumerationOptions() : ((EnumerationOptions) options.Clone());
options2.EnsureLocatable = false;
options2.PrototypeOnly = false;
options2.ReturnImmediately = false;
if (watcher.HaveListenersForProgress)
{
options2.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(base.Scope, options2.Context);
SecurityHandler securityHandler = null;
int errorCode = 0;
securityHandler = base.Scope.GetSecurityHandler();
errorCode = base.scope.GetSecuredIWbemServicesHandler(base.Scope.GetIWbemServices()).CreateClassEnumAsync_(base.ClassName, options2.Flags, options2.GetContext(), newSink.Stub);
if (securityHandler != null)
{
securityHandler.Reset();
}
if (errorCode < 0)
{
watcher.RemoveSink(newSink);
if ((errorCode & 0xfffff000L) == 0x80041000L)
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus) errorCode);
}
else
{
Marshal.ThrowExceptionForHR(errorCode);
}
}
}示例10: GetRelationshipClasses
public void GetRelationshipClasses(ManagementOperationObserver watcher, string relationshipClass, string relationshipQualifier, string thisRole, EnumerationOptions options)
{
if (((this.Path == null) || (this.Path.Path == null)) || (this.Path.Path.Length == 0))
{
throw new InvalidOperationException();
}
if (watcher == null)
{
throw new ArgumentNullException("watcher");
}
this.Initialize(true);
EnumerationOptions options2 = (options != null) ? ((EnumerationOptions) options.Clone()) : new EnumerationOptions();
options2.EnumerateDeep = true;
options2.ReturnImmediately = false;
if (watcher.HaveListenersForProgress)
{
options2.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(base.Scope, options2.Context);
RelationshipQuery query = new RelationshipQuery(true, this.Path.Path, relationshipClass, relationshipQualifier, thisRole);
SecurityHandler securityHandler = null;
int errorCode = 0;
securityHandler = base.Scope.GetSecurityHandler();
errorCode = base.scope.GetSecuredIWbemServicesHandler(base.Scope.GetIWbemServices()).ExecQueryAsync_(query.QueryLanguage, query.QueryString, options2.Flags, options2.GetContext(), newSink.Stub);
if (securityHandler != null)
{
securityHandler.Reset();
}
if (errorCode < 0)
{
watcher.RemoveSink(newSink);
if ((errorCode & 0xfffff000L) == 0x80041000L)
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus) errorCode);
}
else
{
Marshal.ThrowExceptionForHR(errorCode);
}
}
}示例11: InvokeMethod
/// <summary>
/// <para>Invokes a method on the object, asynchronously.</para>
/// </summary>
/// <param name='watcher'>A <see cref='System.Management.ManagementOperationObserver'/> used to handle the asynchronous execution's progress and results.</param>
/// <param name=' methodName'>The name of the method to be executed.</param>
/// <param name=' inParameters'><para>A <see cref='System.Management.ManagementBaseObject'/> containing the input parameters for the method.</para></param>
/// <param name=' options'>An <see cref='System.Management.InvokeMethodOptions'/> containing additional options used to execute the method.</param>
/// <remarks>
/// <para>The method invokes the specified method execution and then
/// returns. Progress and results are reported through events on the <see cref='System.Management.ManagementOperationObserver'/>.</para>
/// </remarks>
public void InvokeMethod(
ManagementOperationObserver watcher,
string methodName,
ManagementBaseObject inParameters,
InvokeMethodOptions options)
{
if ((null == path) || (path.Path.Length==0))
throw new InvalidOperationException();
else if (null == watcher)
throw new ArgumentNullException("watcher");
else if (null == methodName)
throw new ArgumentNullException("methodName");
else
{
Initialize ( false ) ;
InvokeMethodOptions o = (null != options) ?
(InvokeMethodOptions) options.Clone() : new InvokeMethodOptions();
// If someone has registered for progress, make sure we flag it
if (watcher.HaveListenersForProgress)
o.SendStatus = true;
WmiEventSink sink = watcher.GetNewSink(scope, o.Context);
SecurityHandler securityHandler = null;
int status = (int)ManagementStatus.NoError;
securityHandler = scope.GetSecurityHandler();
IWbemClassObjectFreeThreaded inParams = null;
if (null != inParameters)
inParams = inParameters.wbemObject;
status = scope.GetSecuredIWbemServicesHandler( scope.GetIWbemServices() ).ExecMethodAsync_(
path.RelativePath,
methodName,
o.Flags,
o.GetContext(),
inParams,
sink.Stub );
if (securityHandler != null)
securityHandler.Reset();
if (status < 0)
{
watcher.RemoveSink(sink);
if ((status & 0xfffff000) == 0x80041000)
ManagementException.ThrowWithExtendedInfo((ManagementStatus)status);
else
Marshal.ThrowExceptionForHR(status);
}
}
}示例12: Delete
/// <summary>
/// <para>Deletes the object.</para>
/// </summary>
/// <param name='watcher'>The object that will receive the results of the operation.</param>
/// <param name='options'>The options for how to delete the object.</param>
public void Delete(ManagementOperationObserver watcher, DeleteOptions options)
{
if ((null == path) || (path.Path.Length==0))
throw new InvalidOperationException();
else if (null == watcher)
throw new ArgumentNullException("watcher");
else
{
Initialize ( false ) ;
DeleteOptions o = (null != options) ? (DeleteOptions) options.Clone() : new DeleteOptions();
// If someone has registered for progress, make sure we flag it
if (watcher.HaveListenersForProgress)
o.SendStatus = true;
IWbemServices wbemServices = scope.GetIWbemServices();
WmiEventSink sink = watcher.GetNewSink(scope, o.Context);
SecurityHandler securityHandler = null;
int status = (int)ManagementStatus.NoError;
securityHandler = scope.GetSecurityHandler();
if (IsClass)
{
status = scope.GetSecuredIWbemServicesHandler( wbemServices ).DeleteClassAsync_(path.RelativePath,
o.Flags,
o.GetContext(),
sink.Stub);
}
else
{
status = scope.GetSecuredIWbemServicesHandler( wbemServices ).DeleteInstanceAsync_(path.RelativePath,
o.Flags,
o.GetContext(),
sink.Stub);
}
if (securityHandler != null)
securityHandler.Reset();
if (status < 0)
{
watcher.RemoveSink(sink);
if ((status & 0xfffff000) == 0x80041000)
ManagementException.ThrowWithExtendedInfo((ManagementStatus)status);
else
Marshal.ThrowExceptionForHR(status);
}
}
}示例13: GetSubclasses
public void GetSubclasses(ManagementOperationObserver watcher, EnumerationOptions options)
{
EnumerationOptions enumerationOption;
if (watcher != null)
{
if (this.Path != null)
{
this.Initialize(false);
if (options == null)
{
enumerationOption = new EnumerationOptions();
}
else
{
enumerationOption = (EnumerationOptions)options.Clone();
}
EnumerationOptions enumerationOption1 = enumerationOption;
enumerationOption1.EnsureLocatable = false;
enumerationOption1.PrototypeOnly = false;
enumerationOption1.ReturnImmediately = false;
if (watcher.HaveListenersForProgress)
{
enumerationOption1.SendStatus = true;
}
WmiEventSink newSink = watcher.GetNewSink(base.Scope, enumerationOption1.Context);
SecurityHandler securityHandler = base.Scope.GetSecurityHandler();
int num = this.scope.GetSecuredIWbemServicesHandler(base.Scope.GetIWbemServices()).CreateClassEnumAsync_(base.ClassName, enumerationOption1.Flags, enumerationOption1.GetContext(), newSink.Stub);
if (securityHandler != null)
{
securityHandler.Reset();
}
if (num < 0)
{
watcher.RemoveSink(newSink);
if (((long)num & (long)-4096) != (long)-2147217408)
{
Marshal.ThrowExceptionForHR(num);
}
else
{
ManagementException.ThrowWithExtendedInfo((ManagementStatus)num);
return;
}
}
return;
}
else
{
throw new InvalidOperationException();
}
}
else
{
throw new ArgumentNullException("watcher");
}
}