- 1 year ago
How to get Windows Indexing Service state from code?
To get the state of the Windows Indexing Service programmatically, you can use the Windows Search API in C++. Here's an example of how you can retrieve the Indexing Service state:
cpp#include <iostream>
#include <Windows.h>
#include <Ole2.h>
#include <SearchAPI.h>
int main() {
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
if (SUCCEEDED(hr)) {
ISearchManager* pSearchManager = NULL;
// Create an instance of the SearchManager object
hr = CoCreateInstance(CLSID_CSearchManager, NULL, CLSCTX_LOCAL_SERVER, IID_PPV_ARGS(&pSearchManager));
if (SUCCEEDED(hr)) {
ISearchCatalogManager* pCatalogManager = NULL;
// Get the CatalogManager object
hr = pSearchManager->GetCatalog(L"SystemIndex", &pCatalogManager);
if (SUCCEEDED(hr)) {
CatalogState state;
// Get the current state of the Indexing Service
hr = pCatalogManager->get_EnumerationState(&state);
if (SUCCEEDED(hr)) {
std::cout << "Indexing Service state: " << state << std::endl;
} else {
std::cerr << "Failed to get Indexing Service state." << std::endl;
}
pCatalogManager->Release();
} else {
std::cerr << "Failed to get CatalogManager." << std::endl;
}
pSearchManager->Release();
} else {
std::cerr << "Failed to create SearchManager instance." << std::endl;
}
CoUninitialize();
} else {
std::cerr << "Failed to initialize COM." << std::endl;
}
return 0;
}
In this example:
The code initializes the COM library by calling
CoInitializeEx
to allow the use of COM interfaces.The
ISearchManager
interface is used to create an instance of theSearchManager
object, which provides access to the Indexing Service.The
ISearchCatalogManager
interface is obtained from theSearchManager
object by callingGetCatalog
with the catalog name "SystemIndex". This interface allows access to the specific catalog (in this case, the SystemIndex catalog).The
get_EnumerationState
method is called on theISearchCatalogManager
interface to retrieve the current state of the Indexing Service.The state is then printed to the console.
Make sure to include the necessary headers (Windows.h
, Ole2.h
, and SearchAPI.h
) and link against the appropriate libraries when building the code.
Note that this code snippet retrieves the state of the Indexing Service using the Search API. The Indexing Service itself has been deprecated in recent versions of Windows, and Windows Search (Windows Indexing and Search Service) is now the recommended search technology.