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IGetAppTrackerData::GetComponentsInProcess method (comsvcs.h)

  • Article

Retrieves summary information for all COM+ components hosted in a single process, or for a specified subset of these components.

Syntax

HRESULT GetComponentsInProcess(
  [in]  REFGUID          ApplicationInstanceId,
  [in]  DWORD            ProcessId,
  [in]  REFGUID          PartitionId,
  [in]  REFGUID          ApplicationId,
  [in]  DWORD            Flags,
  [out] ULONG            *NumComponentsInProcess,
  [out] ComponentSummary **Components
);

Parameters

[in] ApplicationInstanceId

The application instance GUID that uniquely identifies the tracked process to select, or GUID_NULL if the ProcessId parameter will be used for selection instead.

[in] ProcessId

The process ID that identifies the process to select, or 0 if the ApplicationInstanceId parameter will be used for selection instead.

[in] PartitionId

A partition ID to filter results, or GUID_NULL for all partitions.

[in] ApplicationId

An application ID to filter results, or GUID_NULL for all applications.

[in] Flags

A combination of flags from the GetAppTrackerDataFlags enumeration to filter results and to select which data is returned. The following flags are supported: GATD_INCLUDE_LIBRARY_APPS, GATD_INCLUDE_SWC, GATD_INCLUDE_CLASS_NAME, GATD_INCLUDE_APPLICATION_NAME. See Remarks below for more information.

[out] NumComponentsInProcess

On return, the number of components in the process that match the filter criteria specified by PartitionId, ApplicationId, and Flags.

[out] Components

On return, an array of ComponentSummary structures for the matching components.

Return value

This method can return the standard return values E_INVALIDARG and E_OUTOFMEMORY, as well as the following values.

Return code Description
S_OK
 The method completed successfully and the results are in the Components parameter.
S_FALSE
 The method completed successfully, but there were no components the matched the filter criteria.
COMADMIN_E_APP_NOT_RUNNING
 The specified process does not exist, or is not hosting any tracked COM+ applications.

Remarks

A process may be selected by its application instance ID or its process ID, but not both. Selection by application instance ID is generally preferred, because process IDs may be reused after a process terminates. However, selection by process ID may be useful if you obtain the process ID from some other source, such as a command line argument to your program.

If neither GATD_INCLUDE_LIBRARY_APPS nor GATD_INCLUDE_SWC are set in Flags, only components from the COM+ server application are included in the results. If GATD_INCLUDE_LIBRARY_APPS is set, components from COM+ library applications in the process, if any, are also included. If GATD_INCLUDE_SWC is set, the results will also include entries for Services Without Components contexts.

If ApplicationId is used to specify an application (it is not set to GUID_NULL), the GATD_INCLUDE_LIBRARY_APPS and GATD_INCLUDE_SWC flags are not meaningful, and it is not valid to use them. Components from the specified application will be returned, regardless of the type of that application.

Requirements

Requirement Value
Minimum supported client Windows XP with SP2 [desktop apps only]
Minimum supported server Windows Server 2003 with SP1 [desktop apps only]
Target Platform Windows
Header comsvcs.h

See also

IGetAppTrackerData