لطفا منتظر باشید ...
Visual C++ .NET and DHTML
Visual C++ .NET supports DHTML through both MFC and ATL. Both MFC and ATL give you complete access to the DHTML object model. Unfortunately, access to the object model from languages such as C++ is obtained through OLE Automation (IDispatch) and in many cases isn't as cut-and-dried as some of the scripts we looked at earlier.The DHTML object model is exposed to C++ developers through a set of COM objects with the prefix IHTML (IHTMLDocument, IHTMLWindow, IHTMLElement, IHTMLBodyElement, and so on). In C++, once you obtain the document interface, you can use any of the IHTMLDocument2 interface methods to obtain or to modify the document's properties.You can access the all collection by calling the IHTMLDocument2::get_all method. This method returns an IHTMLElementCollection collection interface that contains all the elements in the document. You can then iterate through the collection using the IHTMLElementCollection::item method (similar to the parentheses in the script above). The IHTMLElementCollection::item method supplies you with an IDispatch pointer that you can call QueryInterface on, requesting the IID_IHTMLElement interface. This call to QueryInterface will give you an IHTMLElement interface pointer that you can use to get or set information for the HTML element.
Most elements also provide a specific interface for working with that particular element type. These element-specific interface names take the form IHTMLXXXXElement, where XXXX is the name of the element (IHTMLBodyElement, for example). You must call QueryInterface on the IHTMLElement object to request the element-specific interface you need. This might sound confusing (and it can be!). But don't worry—you'll see plenty of samples in this chapter that demonstrate how it all ties together. You'll be writing DHTML code in no time.
