Set the default IE provider for IE using IOpenServiceManager :: InstallService

Question

I would like to install the default search engine provider IE using IOpenServiceManager :: InstallService:

• Give the link http://www.opensearch.org/Specifications/OpenSearch/1.1#OpenSearch_description_elements . I created SearchProviderInfo.xml as follows:

    <? xml version = "1.0" encoding = "UTF-8"?> 
    <OpenSearchDescription xmlns = "http://a9.com/-/spec/opensearch/1.1/"> 
    <ShortName> Web Search </ShortName> 
    <Description> Use Example.com to search the Web. </Description> 
    <Tags> example web </Tags> 
    <Contact> [e-mail] </Contact> 
    <Url type = "application / atom + xml" 
    template = "http://example.com/?q={searchTermsasket&pw={startPage?asure&format=atom" /> 
    <Url type = "application / rss + xml" 
    template = "http://example.com/?q={searchTermsasket&pw={startPage?asure&format=rss" /> 
    <Url type = "text / html" 
    template = "http://example.com/?q={searchTermsasket&pw={startPage?}" /> 
    <LongName> Example.com Web Search </LongName> 
    <Image height = "64" width = "64" type = "image / png"> http://example.com/websearch.png </Image> 
    <Image height = "16" width = "16" type = "image / vnd.microsoft.icon"> http://example.com/websearch.ico </Image> 
    <Query role = "example" searchTerms = "cat" /> 
    <Developer> Example.com Development Team </Developer> 
    <Attribution> 
    Search data Copyright 2005, Example.com, Inc., All Rights Reserved 
    </Attribution> 
    <SyndicationRight> open </SyndicationRight> 
    <AdultContent> false </AdultContent> 
    <Language> en-us </Language> 
    <OutputEncoding> UTF-8 </OutputEncoding> 
    <InputEncoding> UTF-8 </InputEncoding> 
    </OpenSearchDescription> 
  

• Give the link http://msdn.microsoft.com/en-us/library/cc849088%28v=vs.85%29.aspx . I create the project "SetDefaultHelper" as follows:

    #include <windows.h>
       #include <atlbase.h>
       #include <wininet.h>
       #include <urlmon.h>
       #include <string>
       #include "openservice.h"    
       #pragma comment (lib, "urlmon.lib")
  
   void DisplayUsage ()
   {
       wprintf (L "\ r \ nSetDefaultHelper.exe - Call SetDefault API on a search provider");
       wprintf (L "\ r \ n");
       wprintf (L "\ r \ nUSAGE: SetDefaultHelper.exe <option>");
       wprintf (L "\ r \ n");
       wprintf (L "\ r \ nOptions (these are mutually exclusive!):");
       wprintf (L "\ r \ n");
       wprintf (L "\ r \ n / guid <guid> GUID of an installed search provider");
       wprintf (L "\ r \ n / url <url> URL of an OpenSearch Description file");
       wprintf (L "\ r \ n");
   }
  
   int __cdecl wmain (__ in int argc, __in_ecount (argc) WCHAR * argv [])
   {
       HRESULT hr = E_FAIL;
       BOOL fComInitialized = FALSE;    
       if (3! = argc)
       { 
           DisplayUsage ();
       }
       else if (SUCCEEDED (CoInitialize (NULL)))
       {
           fComInitialized = TRUE;
           CComPtr <IOpenServiceManager> spManager;
           hr = spManager.CoCreateInstance (CLSID_OpenServiceManager);    
           if (SUCCEEDED (hr))
           {
               CComPtr <IOpenService> spService;    
               if (0 == _wcsicmp (argv [1], L "/ guid"))
               {
                   // Get an IOpenService pointer from the GUID.
                   WCHAR szEscaped [INTERNET_MAX_URL_LENGTH] = L "";
                   DWORD cchEscaped = ARRAYSIZE (szEscaped);
                   hr = UrlEscape (argv [2], szEscaped, & cchEscaped, URL_ESCAPE_SEGMENT_ONLY);    
                   if (SUCCEEDED (hr))
                   {                        
                       std :: wstring wsOsid (L "x-osid: 1: search:");
                       wsOsid + = szEscaped;
                       hr = spManager-> GetServiceByID (wsOsid.c_str (), & spService);
                   }  
               }
               else if (0 == _wcsicmp (argv [1], L "/ url"))
               {
                   // Install the provider to get an IOpenService pointer.
                   // CComPtr <IUri> spUri;
                   // hr = CreateUri (argv [2], 0, 0, & spUri);
                   // if (SUCCEEDED (hr))
                   // {
                       hr = spManager-> InstallService (argv [2], & spService);
                   //}
               }
               else
               {
                   DisplayUsage ();
                   hr = E_FAIL;
               }
  
  

  if (SUCCEEDED(hr)) { hr = spService->SetDefault(TRUE, NULL); } } } if (fComInitialized) { CoUninitialize(); } return hr; 

  }

• I will build the project in order. Both SetDefaultHelper.exe and SearchProviderInfo.xml files are the same folder. In the project setup, set "Configuration Properties"> "Debug"> "Arguments" = / url absolutePaht / searchProvider.xml . Then run debug (F10), in the line "hr = CreateUri (argv [2], 0, 0, & spUri);", rusult hr is so insignificant. I do not know why. Can you help me?

Many thanks.

[Allowed]:
1. No need to CreateUri // commented
2. Use absolutely the path.

Answer 1

Use the absolute path and UrlCreateFromPath to create the file:/// url, pass that InstallService url.

Meanwhile, your XML seems to have an error.

  WCHAR szURL[MAX_PATH] = L""; DWORD cchURL = ARRAYSIZE(szURL); hr = ::UrlCreateFromPath(argv[2], szURL, &cchURL, 0); if (SUCCEEDED(hr)) { hr = spManager->InstallService(argv[2], &spService); // Now we can set it as the default. if (SUCCEEDED(hr)) { hr = spService->SetDefault(TRUE, NULL); if (hr == OS_E_CANCELLED) { hr = E_ACCESSDENIED; // by the user! } } }