Gets a value that indicate if the viewer currently has an image (single item mode).
hasImage: boolean; // read-only
true if the viewer currently has an image; otherwise, false.
The viewer has an image when the value of ImageSize is not empty (0,0). In other words, if any of ImageUrl, Image or Canvas has been set to a valid value or if the user set the value of ImageSize directly.
Medical Web Viewer .NET