Web Win32/WTL Hybrid

// WebWin32SampleView.h : interface of the CWebWin32SampleView class
//
/////////////////////////////////////////////////////////////////////////////

#pragma once

#include "iExplorer.h"

#define BEGIN_HTML_DDX() void _HtmlDDXElements( CWTLIExplorer & pBrowser, BOOL VarToControl ) {
#define   BEGIN_FORM( X ) { _bstr_t formName( X );
#define     DDX_HTML_STRING(x,z) pBrowser.QueryHtmlElementValueTextBox( x,formName,z, VarToControl );
#define     DDX_HTML_CHECKBOX(x,z) pBrowser.QueryHtmlElementValueCheckBox( x,formName,z, VarToControl );
#define     DDX_HTML_LISTBOX(x,z) pBrowser.QueryHtmlElementValueListBox( x,formName,z, VarToControl );

#define   END_FORM() }
#define END_HTML_DDX() };
#define DDX_HTML_EXCHANGE( T , Z ) _HtmlDDXElements(T,Z);

#define ID_HTML_CLICK 1

#define SET_HTML_MESSAGE_MAP() _DefineHtmlMsgMap();
#define BEGIN_HTML_MSG_MAP(X,Y) 	void _DefineHtmlMsgMap()\
{\
CWTLIExplorer & __pBrowser = Y;\
DWORD pointer_part_1;\
DWORD pointer_part_2 = (DWORD) this;\
LRESULT (X::*pVar) ( BOOL & );

#define COMMAND_HTML_HANDLER(id,elementName,handler)		pVar = handler;\
memcpy( &pointer_part_1, ( char * )  &pVar, 4 );\
__pBrowser.SetObjectHandler( id, elementName, pointer_part_1, pointer_part_2 );

#define END_HTML_MSG_MAP() }


class CWebWin32SampleView : public CWindowImpl<CWebWin32SampleView,CAxWindow>
{
public:
	DECLARE_WND_SUPERCLASS(NULL, CAxWindow::GetWndClassName())

	// Our internet explorer
	CWTLIExplorer m_pBrowser;

	// Our vars to Exchange information with HTML page...
	CString		  m_FirstName;
	CString		  m_LastName;
	CString		  m_Address;
	CString		  m_Country;
	BOOL		  m_ILikeThisSample;

	 // html-hosted-page-form-based DDX
 	BEGIN_HTML_DDX()
	   BEGIN_FORM( "testForm" ) // Our Form Name ( at HTML page )
		  // Our exchange definitions...
		  DDX_HTML_STRING( m_FirstName ,"firstName" ) 
	      DDX_HTML_STRING( m_LastName  ,"lastName" )
	      DDX_HTML_STRING( m_Address,"address" )
	      DDX_HTML_LISTBOX( m_Country, "country" );
	      DDX_HTML_CHECKBOX( m_ILikeThisSample, "ILikeIt" )
	   END_FORM()
 	END_HTML_DDX()


	// HTML Handlers
	// Here we can define HTML handlers hooks related to element the 
	// page loaded
	BEGIN_HTML_MSG_MAP(CWebWin32SampleView,m_pBrowser)
		// Set an event handler on buttonSumbmit.onclick 
		COMMAND_HTML_HANDLER(ID_HTML_CLICK, "buttonSubmit", OnSubmit )
	END_HTML_MSG_MAP()

	LRESULT OnSubmit( BOOL & bHandled )
	{
		// Do Data Exchange with HTML page...
		DDX_HTML_EXCHANGE( m_pBrowser, false )

		// MessageBox text Composite 
		CString totalMessage = m_FirstName + CString(" - ") + m_LastName + CString(" - " ) + m_Address;

		if ( m_ILikeThisSample )
			 totalMessage += CString("\n\nYou have checked it." );
		else
			 totalMessage += CString("\n\nYou have not checked it." );

		totalMessage += CString("\n\nCountry Selected: ") + m_Country;

		// Show a message box
		MessageBox( totalMessage,"From CWebWin32SampleView::OnSubmit event handler.", MB_ICONINFORMATION );

		// set handled
		bHandled = true;
 
		return 0;
	}


	BOOL PreTranslateMessage(MSG* pMsg);

	BEGIN_MSG_MAP(CWebWin32SampleView)
		MESSAGE_HANDLER(WM_CREATE, OnCreate)
		MESSAGE_HANDLER(WM_SIZE, OnSize)

		// We receive this message when the IExplorer is on a ready state
		// and we can Set handlers to the page...
		MESSAGE_HANDLER(WM_HTML_SETHANDLERS /* = WM_USER + 1 */ , OnHTMLSetHandlers )
	END_MSG_MAP()

	LRESULT OnHTMLSetHandlers(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/ )
	{
		// Activate event handlers map
		SET_HTML_MESSAGE_MAP();
		return 0;
	}

// Handler prototypes (uncomment arguments if needed):
//	LRESULT MessageHandler(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
//	LRESULT CommandHandler(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
//	LRESULT NotifyHandler(int /*idCtrl*/, LPNMHDR /*pnmh*/, BOOL& /*bHandled*/)

	LRESULT OnSize(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
	LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/);
};