mainfrm.cpp

动态HTTP的练习代码,本人参照VC技术内幕编写

// MainFrm.cpp : CMainFrame 类的实现
//
#include <MsHTML.h>
#include "stdafx.h"
#include "Ex29b.h"

#include "MainFrm.h"
#include "LeftView.h"
#include "Ex29bView.h"
#include ".\mainfrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	ON_WM_CREATE()
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // 状态行指示器
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};


// CMainFrame 构造/析构

CMainFrame::CMainFrame()
{
	// TODO: 在此添加成员初始化代码
}

CMainFrame::~CMainFrame()
{
}


int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("未能创建工具栏\n");
		return -1;      // 未能创建
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("未能创建状态栏\n");
		return -1;      // 未能创建
	}
	// TODO: 如果不需要工具栏可停靠，则删除这三行
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	return 0;
}

BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT /*lpcs*/,
	CCreateContext* pContext)
{
	// 创建拆分器窗口
	if (!m_wndSplitter.CreateStatic(this, 1, 2))
		return FALSE;

	if (!m_wndSplitter.CreateView(0, 0, RUNTIME_CLASS(CLeftView), CSize(100, 100), pContext) ||
		!m_wndSplitter.CreateView(0, 1, RUNTIME_CLASS(CEx29bView), CSize(100, 100), pContext))
	{
		m_wndSplitter.DestroyWindow();
		return FALSE;
	}

	return TRUE;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式

	return TRUE;
}


// CMainFrame 诊断

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG


// CMainFrame 消息处理程序


void CMainFrame::DoDHTMLExplore(void)
{
	CLeftView * pListView = 
		(CLeftView*)m_wndSplitter.GetPane(0,0);
	CEx29bView * pDHTMLView =
		(CEx29bView*)m_wndSplitter.GetPane(0,1);
	pListView->GetListCtrl().DeleteAllItems();
	IDispatch* pDisp = pDHTMLView->GetHtmlDocument();
	if (pDisp != NULL)
	{
		IHTMLDocument2* pHTMLDocument2;
		HRESULT hr;

		hr = pDisp->QueryInterface(IID_IHTMLDocument2,
			(void**)&pHTMLDocument2);
		if (hr == S_OK)
		{
			IHTMLElementCollection* pColl = NULL;

			hr = pHTMLDocument2->get_all(&pColl);
			if (hr == S_OK && pColl != NULL)
			{
				LONG celem;
				hr = pColl->get_length(&celem);

				if (hr == S_OK)
				{
					for (int i = 0;i < celem;i++)
					{
						VARIANT varIndex;
						varIndex.vt = VT_UINT;
						varIndex.lVal = i;
						VARIANT var2;
						VariantInit(&var2);
						IDispatch* pDisp;

						hr = pColl->item(varIndex,var2,&pDisp);
						if (hr == S_OK)
						{
							IHTMLElement* pElem;
							hr = pDisp->QueryInterface(
								IID_IHTMLElement,
								(void**)&pElem);
							if (hr == S_OK)
							{
								BSTR bstr;
								hr = pElem->get_tagName(&bstr);
								CString strTag(bstr);
								IHTMLImgElement* pImgElem;

								hr = pDisp->QueryInterface(
									IID_IHTMLImgElement,
									(void**)&pImgElem);
								if (hr == S_OK)
								{
									pImgElem->get_href(&bstr);
									strTag += "-";
									strTag += bstr;
									pImgElem->Release();
								}
								else
								{
									IHTMLAnchorElement* pAnchElem;
									hr = pDisp->QueryInterface(
										IID_IHTMLAnchorElement,
										(void**)&pAnchElem);
									if (hr == S_OK)
									{
										pAnchElem->get_href(&bstr);
										strTag += "-";
										strTag += bstr;
										pAnchElem->Release();
									}
								}
								pListView->GetListCtrl().InsertItem(
									pListView->GetListCtrl().GetItemCount(),
									strTag);
								pElem->Release();
							}
							pDisp->Release();
						}
					}
				}
				pColl->Release();
			}
			pHTMLDocument2->Release();
		}
		pDisp->Release();
	}
}