使用CDHtmlDialog的对话框程序,重载OnBeforeNavigate(LPDISPATCH pDisp, LPCTSTR szUrl);当szUrl是某些指定的链接时,就不显示该页面,在OnBeforeNavigate函数中加入DisconnectDHtmlEvents();依然不起作用,请大家指点一下,谢谢!
使用CDHtmlDialog的对话框程序,重载OnBeforeNavigate(LPDISPATCH pDisp, LPCTSTR szUrl);当szUrl是某些指定的链接时,就不显示该页面,在OnBeforeNavigate函数中加入DisconnectDHtmlEvents();依然不起作用,请大家指点一下,谢谢!
CHtmlView,重载OnBeforeNavigate2,很容易解决,但是在CDHtmlDialog上不知道怎么弄啊
void CDHtmlDialog::_OnBeforeNavigate2(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel)
{
Flags; // unused
TargetFrameName; // unused
PostData; // unused
Headers; // unused
Cancel; // unused CString str(V_BSTR(URL));
OnBeforeNavigate(pDisp, str);
}
因此你可以自己处理这个事件
.h 加入
DECLARE_EVENTSINK_MAP()
void _OnBeforeNavigate2(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel);.cpp 加入
BEGIN_EVENTSINK_MAP(CDHTMLDlgTestDlg, CDHtmlDialog)
ON_EVENT(CDHTMLDlgTestDlg, AFX_IDC_BROWSER, 250 /* BeforeNavigate2 */, _OnBeforeNavigate2, VTS_DISPATCH VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PBOOL)
END_EVENTSINK_MAP()void CDHTMLDlgTestDlg::_OnBeforeNavigate2(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel)
{
Flags; // unused
TargetFrameName; // unused
PostData; // unused
Headers; // unused
//Cancel; // unused
*Cancel = TRUE; //这里非零就可以阻止进一步操作 CString str(V_BSTR(URL));
OnBeforeNavigate(pDisp, str);
}
该方法我早就试过,却是起作用,但是只要DECLARE_EVENTSINK_MAP(),那么BEGIN_DHTML_EVENT_MAP就不起作用,也就是说,html中的button,onButton事件就没用了,不知道怎么回事。
// DHTMLDlgTestDlg.h : 头文件
//#pragma once
// CDHTMLDlgTestDlg 对话框
class CDHTMLDlgTestDlg : public CDHtmlDialog
{
// 构造
public:
CDHTMLDlgTestDlg(CWnd* pParent = NULL); // 标准构造函数// 对话框数据
enum { IDD = IDD_DHTMLDLGTEST_DIALOG, IDH = IDR_HTML_DHTMLDLGTEST_DIALOG }; protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持 HRESULT OnButtonOK(IHTMLElement *pElement);
HRESULT OnButtonCancel(IHTMLElement *pElement);// 实现
protected:
HICON m_hIcon; // 生成的消息映射函数
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
DECLARE_DHTML_EVENT_MAP()
DECLARE_EVENTSINK_MAP()public:
void _OnBeforeNavigate2(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel);
void _OnNavigateComplete2(LPDISPATCH pDisp, VARIANT FAR* URL);
void _OnDocumentComplete(LPDISPATCH pDisp, VARIANT* URL);
};// DHTMLDlgTestDlg.cpp : 实现文件
//#include "stdafx.h"
#include "DHTMLDlgTest.h"
#include "DHTMLDlgTestDlg.h"#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框class CAboutDlg : public CDialog
{
public:
CAboutDlg();// 对话框数据
enum { IDD = IDD_ABOUTBOX }; protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持// 实现
protected:
DECLARE_MESSAGE_MAP()
};CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CDHTMLDlgTestDlg 对话框BEGIN_DHTML_EVENT_MAP(CDHTMLDlgTestDlg)
DHTML_EVENT_ONCLICK(_T("ButtonOK"), OnButtonOK)
DHTML_EVENT_ONCLICK(_T("ButtonCancel"), OnButtonCancel)
END_DHTML_EVENT_MAP()BEGIN_EVENTSINK_MAP(CDHTMLDlgTestDlg, CDHtmlDialog)
ON_EVENT(CDHTMLDlgTestDlg, AFX_IDC_BROWSER, 252 /* NavigateComplete2 */, _OnNavigateComplete2, VTS_DISPATCH VTS_PVARIANT)
ON_EVENT(CDHTMLDlgTestDlg, AFX_IDC_BROWSER, 250 /* BeforeNavigate2 */, _OnBeforeNavigate2, VTS_DISPATCH VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PBOOL)
ON_EVENT(CDHTMLDlgTestDlg, AFX_IDC_BROWSER, 259 /* DocumentComplete */, _OnDocumentComplete, VTS_DISPATCH VTS_PVARIANT)
END_EVENTSINK_MAP()void CDHTMLDlgTestDlg::_OnBeforeNavigate2(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel)
{
Flags; // unused
TargetFrameName; // unused
PostData; // unused
Headers; // unused
Cancel; // unused
//*Cancel = TRUE; // CString str(V_BSTR(URL));
OnBeforeNavigate(pDisp, str);
}void CDHTMLDlgTestDlg::_OnNavigateComplete2(LPDISPATCH pDisp, VARIANT FAR* URL)
{
ASSERT(V_VT(URL) == VT_BSTR); CString str(V_BSTR(URL)); OnNavigateComplete(pDisp, str);
}void CDHTMLDlgTestDlg::_OnDocumentComplete(LPDISPATCH pDisp, VARIANT* URL)
{
ASSERT(V_VT(URL) == VT_BSTR); CString str(V_BSTR(URL));
OnDocumentComplete(pDisp, str);
}
CDHTMLDlgTestDlg::CDHTMLDlgTestDlg(CWnd* pParent /*=NULL*/)
: CDHtmlDialog(CDHTMLDlgTestDlg::IDD, CDHTMLDlgTestDlg::IDH, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}void CDHTMLDlgTestDlg::DoDataExchange(CDataExchange* pDX)
{
CDHtmlDialog::DoDataExchange(pDX);
}BEGIN_MESSAGE_MAP(CDHTMLDlgTestDlg, CDHtmlDialog)
ON_WM_SYSCOMMAND()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
// CDHTMLDlgTestDlg 消息处理程序BOOL CDHTMLDlgTestDlg::OnInitDialog()
{
CDHtmlDialog::OnInitDialog(); // 将“关于...”菜单项添加到系统菜单中。 // IDM_ABOUTBOX 必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
BOOL bNameValid;
CString strAboutMenu;
bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
ASSERT(bNameValid);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
} // 设置此对话框的图标。当应用程序主窗口不是对话框时,框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标 // TODO: 在此添加额外的初始化代码 return TRUE; // 除非将焦点设置到控件,否则返回 TRUE
}void CDHTMLDlgTestDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDHtmlDialog::OnSysCommand(nID, lParam);
}
}// 如果向对话框添加最小化按钮,则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序,
// 这将由框架自动完成。void CDHTMLDlgTestDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文 SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0); // 使图标在工作区矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2; // 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDHtmlDialog::OnPaint();
}
}//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CDHTMLDlgTestDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}HRESULT CDHTMLDlgTestDlg::OnButtonOK(IHTMLElement* /*pElement*/)
{
OnOK();
return S_OK;
}HRESULT CDHTMLDlgTestDlg::OnButtonCancel(IHTMLElement* /*pElement*/)
{
OnCancel();
return S_OK;
}