Comment Feed for Channel 9 - How-to: Query Vista Search From Your App http://ecn.channel9.msdn.com/o9/previewImages/100/201976_100x75.jpg Channel 9 - How-to: Query Vista Search From Your App Ian Griffiths, dev trainer extraordinaire, recorded a series of "how-to" videos for us, each one demonstrating how to write code that takes advantage of a feature of the Windows Vista platform.  Here's the first in the series -- how to issues queries against the desktop search engine.[Update: the second installment, How To: Use Vista's Power Management APIs To Be A Good Laptop Citizen is now up] en Tue, 21 May 2013 04:03:32 GMT Tue, 21 May 2013 04:03:32 GMT Rev9 Re: How-to: Query Vista Search From Your App Here are a few snippets of relevant source code from the demo:

public partial class Window1 : Window
 {
  private ImageCollection _foundImages = null;
  private string[] _exifProperties = new string[] {
   "System.Photo.CameraManufacturer", "System.Photo.CameraModel",
   "System.Photo.FNumber", "System.Photo.ExposureTime", "System.Photo.FocalLength",
   "System.Photo.ExposureBias", "System.Photo.MeteringMode",
   "System.Photo.ColorSpace"};

  private string[] _generalProperties = new string[] {
   "System.Author", "System.Keywords", "System.File.Description"};

  private void OnSearch(object sender, RoutedEventArgs e)
  {
   string indexerConnString = "provider=Search.CollatorDSO.1;EXTENDED PROPERTIES=\"Application=Windows\"";
   using (OleDbConnection conn = new OleDbConnection(indexerConnString))
   {
    conn.Open();
    string keywordValue = SearchBox.Text;

    _foundImages.Clear();
    GetImageFileResults(keywordValue, conn);
    ImageListBox.DataContext = _foundImages;
   }
  }

  private void GetImageFileResults(string keywordValue, OleDbConnection conn)
  {

   try
   {
    System.Collections.Hashtable checkNames = new System.Collections.Hashtable();

    string sqlString = "Select \"System.Title\", " +
        "\"System.DisplayFolder\", \"System.DisplayName\" " +
        "FROM systemindex..scope() " +
                    "WHERE FREETEXT(\"System.CanonicalType\", 'JPG') "/* +
                        "AND CONTAINS(\"System.Path\", 'file:')"*/;
                if (!string.IsNullOrEmpty(keywordValue))
                {
                    sqlString += " AND (\"System.Keywords\" = SOME ARRAY ['" + keywordValue + "'])";
                }

    OleDbCommand cmd = new OleDbCommand(sqlString, conn);

    using (OleDbDataReader reader = cmd.ExecuteReader())
    {

     while (reader.Read())
     {
      ImageInfo imageInfo = new ImageInfo();
      imageInfo.Title = reader.GetString(0);
                        string folder = reader.GetString(1);
                        string name = reader.GetString(2);
                        // workaround to ignore non-files
                        if (folder.Length < 2 || folder[1] != ':')
                            continue;
      imageInfo.ImagePath = System.IO.Path.Combine(
                            folder, name);
                        // Workaround to ignore peculiar files on non-existent
                        // volumes that build 5365 seems to return.
                        if (!System.IO.File.Exists(imageInfo.ImagePath))
                            continue;
                        if (imageInfo.ImagePath.Contains("Temporary Internet Files"))
                            continue;
      if (checkNames.ContainsKey(imageInfo.Title))
      {
       int index = (int)checkNames[(string)imageInfo.Title];

       if (_foundImages[index] != null)
       {
        if (_foundImages[index].Variations == null)
        {
         ImageCollection variationCollection = new ImageCollection();
         variationCollection.Add(imageInfo);
         _foundImages[index].Variations = variationCollection;
        }
        else
        {
         _foundImages[index].Variations.Add(imageInfo);
        }
       }

      }
      else
      {
       imageInfo.Variations = new ImageCollection();
       imageInfo.Variations.Add(imageInfo);
       int currentIndex = _foundImages.Count;
       checkNames.Add(imageInfo.Title, currentIndex);
       _foundImages.Add(imageInfo);

      }
     }

    }
   }
   catch (OleDbException)
   {
    // Not finding any results is ok.
   }

posted by jmazner

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632865961610000000 Thu, 22 Jun 2006 18:02:41 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632865961610000000 jmazner Re: How-to: Query Vista Search From Your App Catherine Heller's excellent blog entry

posted by jmazner

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632866157730000000 Thu, 22 Jun 2006 23:29:33 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632866157730000000 jmazner Re: How-to: Query Vista Search From Your App
Btw. Is there a way to get the different columns of a document? I mean in the example with the pictures it is great, but for other documents?

posted by littleguru

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632866699840000000 Fri, 23 Jun 2006 14:33:04 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632866699840000000 littleguru Re: How-to: Query Vista Search From Your App
Sheva

posted by footballism

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632867432940000000 Sat, 24 Jun 2006 10:54:54 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632867432940000000 footballism Re: How-to: Query Vista Search From Your App
{"The ICommandWithParameters interface is not supported by the 'Search.CollatorDSO.1' provider.  Command parameters are unsupported with the current provider."}

posted by littleguru

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632867475550000000 Sat, 24 Jun 2006 12:05:55 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632867475550000000 littleguru Re: How-to: Query Vista Search From Your App
footballism wrote:
Good to see Ian's awesome screencast, but where can I get the source code of demo app shown in the video?

Sheva


Copy and past his second post?

posted by littleguru

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632867475950000000 Sat, 24 Jun 2006 12:06:35 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632867475950000000 littleguru Re: How-to: Query Vista Search From Your App btw, how to extract/change metadata from files in Vista?

EDIT: nevermind

posted by Ion Todirel

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632868919900000000 Mon, 26 Jun 2006 04:13:10 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632868919900000000 Ion Todirel Re: How-to: Query Vista Search From Your App posted by zahadum

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632880636340000000 Sun, 09 Jul 2006 17:40:34 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632880636340000000 zahadum Re: How-to: Query Vista Search From Your App
The query is searching in the Windows Index database (FROM SYSTEMINDEX..SCOPE).
If, let's say, I don't have my D: drive indexed, how do I perform a search on this drive as well. There is possible to have a syntax like this:

SELECT "System.FileName" FROM "D:\"..etc?

Thanks,
Alin

posted by alinc

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632949678910000000 Wed, 27 Sep 2006 15:31:31 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632949678910000000 alinc Re: How-to: Query Vista Search From Your App I tried with a similar code. I was able to get the column name with reader.GetName(0) but the result set was not found. that is , when i say reader.GetString(0), i get the error saying there is no data in the row/column. i tried out with different keywords but still the same result. I also tried using the same keyword in the WDS, then i got some results. My prob is i am not able to get the same result programmatically. The query i am using is:

SELECT DocTitle FROM systemindex..scope() WHERE CONTAINS('" + "Choose" + "')".

here i am searching for the keyword "Choose".

can neone pls help me on this..

posted by shashanka_d

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632985091730000000 Tue, 07 Nov 2006 15:12:53 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c632985091730000000 shashanka_d Re: How-to: Query Vista Search From Your App It's not working with me. I wonder what is wrong with my computer. Steam Generator Irons

posted by JoyceSachs

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c634154613780000000 Fri, 23 Jul 2010 05:56:18 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c634154613780000000 JoyceSachs Re: How-to: Query Vista Search From Your App @JoeySachs that's becuase you have windows 7 not windows vista maybe. Mobile Phone Recycling

posted by son2best

]]> http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c634161885670000000 Sat, 31 Jul 2010 15:56:07 GMT http://channel9.msdn.com/Blogs/jmazner/How-to-Query-Vista-Search-From-Your-App#c634161885670000000 son2best