FindActCtxSectionGuid function (winbase.h)

Article
10/13/2021

The FindActCtxSectionGuid function retrieves information on a specific GUID in the current activation context and returns a ACTCTX_SECTION_KEYED_DATA structure.

Syntax

BOOL FindActCtxSectionGuid(
  [in]  DWORD                      dwFlags,
  [in]  const GUID                 *lpExtensionGuid,
  [in]  ULONG                      ulSectionId,
  [in]  const GUID                 *lpGuidToFind,
  [out] PACTCTX_SECTION_KEYED_DATA ReturnedData
);

Parameters

[in] dwFlags

Flags that determine how this function is to operate. Only the following flag is currently defined.

Value	Meaning
FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX	This function returns the activation context handle where the redirection data was found in the hActCtx member of the ACTCTX_SECTION_KEYED_DATA structure. The caller must use ReleaseActCtx to release this activation context.

[in] lpExtensionGuid

Reserved; must be null.

[in] ulSectionId

Identifier of the section of the activation context in which to search for the specified GUID.

The following are valid GUID section identifiers:

ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION
ACTIVATION_CONTEXT_SECTION_COM_INTERFACE_REDIRECTION
ACTIVATION_CONTEXT_SECTION_COM_TYPE_LIBRARY_REDIRECTION

The following is a valid GUID section identifier beginning with Windows Server 2003 and Windows XP with SP1:

ACTIVATION_CONTEXT_SECTION_CLR_SURROGATES

[in] lpGuidToFind

Pointer to a GUID to be used as the search criteria.

[out] ReturnedData

Pointer to an ACTCTX_SECTION_KEYED_DATA structure to be filled out with the requested GUID information.

Return value

If the function succeeds, it returns TRUE. Otherwise, it returns FALSE.

This function sets errors that can be retrieved by calling GetLastError. For an example, see Retrieving the Last-Error Code. For a complete list of error codes, see System Error Codes.

Remarks

This function should only be called by the Side-by-side API functions or COM methods. Applications should not directly call this function.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	winbase.h (include Windows.h)
Library	Kernel32.lib
DLL	Kernel32.dll