C# - get an image through image cropper in Umbraco

I created a helper method. you can put this function somewhere in your project :

public static string GetImageCropByID(int imageId, string cropSize)

{

    string returnImage = "";

    if (imageId != null)

    {

 string tmpImage = (new umbraco.cms.businesslogic.media.Media(imageId).getProperty("umbracoFile").Value).ToString();

 returnImage = tmpImage;

 if (!string.IsNullOrEmpty(cropSize))

 {

     Media photo = uQuery.GetMedia(imageId);

     string cropImage = photo.GetImageCropperUrl("cropextended", cropSize);

     if (!String.IsNullOrEmpty(cropImage))

  returnImage = cropImage;

 }

    }

    return returnImage;

}