帮我看看这个异常！！特别是111222 and jiangsheng

但是realease就挂了丫
现在我只有用activex控件实现的（还不是动态生成的），没有异常了，但是release下Access Violation。
但是如果有下面的调用：
CWebBrowser m_browser;
m_browser.EnableWindow(TRUE); ///这句必然出异常。
m_browser.ShowWindow(TRUE);所以我用debug版的可执行文件打包成安装文件，无奈

没有Create，就没有窗口，也就当然要挂，Create后就行了。

我是拖的控件到form里头的，这还要create?

if(::IsWindow(m_browser.m_hWnd))
{
m_browser.EnableWindow(TRUE); ///no异常。
m_browser.ShowWindow(TRUE);}

早都试过了，create根本就编译通不过的
除非动态create,结果还是一样if(::IsWindow(m_browser.m_hWnd))
{
m_browser.EnableWindow(TRUE); //一样异常
m_browser.ShowWindow(TRUE);}

你究竟是用的什么组件?是不是用的“miscosoft web browser"?

像这种组件，隐藏或显示窗口最好要调用组件提供的接口，譬如IWebBrowser2组件有一个接口put_Visible可以控制显示或是不显示。

miscosoft web browser 是呀
添加的默认类名是CWebBrowser2萨？
IWebBrowser2又是哪里来的？
是com接口吧？

CWebBrowser2是IWebBrowser2的一个封装

我觉得也是，给点调用这个接口的源码好吗？
我再来改改看？
看来非得release得才行呀，没优化的太大了

http://www.csdn.net/expert/topic/360/360785.shtm

异常的意思为该派发接口的成员函数没有找到，是不是你的ACTIVEX用的不对，你可以直接插入一个该控件的封装类，然后再用就行了

我看了呀，
加上CoInitialize(NULL); 和CoUninitialize();还是release有异常具体调用的代码和这个贴子里头的用法一样呀，而且我还没用到那么多elment，就一个
put_Htmlinner

WebBrowser有BUG，千万不要用MFC的CWnd函数处理它的隐藏、显示、禁止、激活……你换API函数试试

devouer(玩笑一生)我debug下没有异常，也实现功能了，就是release有异常我用chtmlview的时候连debug下都有异常，我看别人用chtmlview的代码也是一样的异常，
所以我就改用webbrowser来实现，虽然他们的道理是一样的，现在可好，release下的异常死活解决不了，用debug的打包似乎太搞笑了点
哎，失败！

http://www.csdn.net/expert/topic/470/470434.shtm

111222(我屁股想吐)我在codeguru上也看到一片贴子说webbrowser有bug,但我找的几份用htmlview的源码（csdn和国外网站找的）都在debug版有异常，这个异常和我自己用htmlview实现下的异常一莫一样，而且还都不影响功能，所以最后我才改用webbrowser的，因为我看的几个用webbrowser的源码窦还出现异常，这个问题也提了好几天了，郁闷！

masterz()我看了
我在视初始化的时侯
::EnableWindow(m_browser.m_hWnd,TRUE);
::ShowWindow(m_browser.m_hWnd,SW_SHOW); //这两句不加也debug无异常
COleVariant noArg;
m_browser.Navigate(url,&noArg,&noArg,&noArg,&noArg);
release下执行crash出错退出First-chance exception in UnisnetScanner.exe: 0xC0000005: Access Violation.

#include ".\Component\webbrowser2.h"
/////////////////////////////////////////////////////////////////////////////
// CAboutBox dialogclass CAboutBox : public CDialog
{
// Construction
public:
CAboutBox(CWnd* pParent = NULL);   // standard constructor
virtual ~CAboutBox();
// Dialog Data
//{{AFX_DATA(CAboutBox)
enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA
// Attributes
protected:
CWebBrowser2 m_wndBrowser;
IWebBrowser2* m_pBrowserApp;
// Operations
protected:
BOOL LoadFromResource(LPCTSTR lpszResource);
BOOL LoadFromResource(UINT nRes);
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutBox)
protected:
virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
//}}AFX_VIRTUAL
void OnBeforeNavigate2(LPCTSTR lpszURL, DWORD nFlags,
LPCTSTR lpszTargetFrameName, CByteArray& baPostedData,
LPCTSTR lpszHeaders, BOOL* pbCancel);
void Navigate(LPCTSTR URL, DWORD dwFlags = 0,
LPCTSTR lpszTargetFrameName = NULL,
LPCTSTR lpszHeaders = NULL, LPVOID lpvPostData = NULL,
DWORD dwPostDataLen = 0);
void Navigate2(LPITEMIDLIST pIDL, DWORD dwFlags = 0,
LPCTSTR lpszTargetFrameName = NULL);
void Navigate2(LPCTSTR lpszURL, DWORD dwFlags = 0,
LPCTSTR lpszTargetFrameName = NULL, LPCTSTR lpszHeaders = NULL,
LPVOID lpvPostData = NULL, DWORD dwPostDataLen = 0);
void Navigate2(LPCTSTR lpszURL, DWORD dwFlags,
CByteArray& baPostedData,
LPCTSTR lpszTargetFrameName = NULL, LPCTSTR lpszHeader = NULL);
virtual void OnAppCmd(LPCTSTR lpszWhere);
// Implementation
protected: // Generated message map functions
//{{AFX_MSG(CAboutBox)
virtual BOOL OnInitDialog();
afx_msg void OnBeforeNavigate2Explorer(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel);
afx_msg void OnDestroy();
afx_msg void OnDocumentCompleteExplorer(LPDISPATCH pDisp, VARIANT FAR* URL);
DECLARE_EVENTSINK_MAP()
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
// AboutBox.cpp : implementation file
//#include "stdafx.h"
#include "resource.h"
#include <afxpriv.h>
#include <mshtml.h>
#include <atlbase.h>
extern CComModule _Module;
#include <atlcom.h>
#include <COMDEF.h>
#include "AboutBox.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutBox dialog
CAboutBox::CAboutBox(CWnd* pParent /*=NULL*/)
: CDialog(CAboutBox::IDD, pParent)
{
//{{AFX_DATA_INIT(CAboutBox)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
m_pBrowserApp = NULL;
}CAboutBox::~CAboutBox()
{
if (m_pBrowserApp != NULL)
m_pBrowserApp->Release();
}void CAboutBox::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutBox)
DDX_Control(pDX, IDC_EXPLORER, m_wndBrowser);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutBox, CDialog)
//{{AFX_MSG_MAP(CAboutBox)
ON_WM_DESTROY()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()BEGIN_EVENTSINK_MAP(CAboutBox, CDialog)
    //{{AFX_EVENTSINK_MAP(CAboutBox)
ON_EVENT(CAboutBox, IDC_EXPLORER, 250 /* BeforeNavigate2 */, OnBeforeNavigate2Explorer, VTS_DISPATCH VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PVARIANT VTS_PBOOL)
ON_EVENT(CAboutBox, IDC_EXPLORER, 259 /* DocumentComplete */, OnDocumentCompleteExplorer, VTS_DISPATCH VTS_PVARIANT)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
/////////////////////////////////////////////////////////////////////////////
// CAboutBox message handlersBOOL CAboutBox::OnInitDialog()
{
CDialog::OnInitDialog();

// TODO: Add extra initialization here
LPUNKNOWN lpUnk = m_wndBrowser.GetControlUnknown();
HRESULT hr = lpUnk->QueryInterface(IID_IWebBrowser2, (void**) &m_pBrowserApp);
if (!SUCCEEDED(hr))
{
m_pBrowserApp = NULL;
m_wndBrowser.DestroyWindow();
DestroyWindow();
return FALSE;
}
//Navigate2("C:\\Windows\\Readme.htm");
LoadFromResource("About.Htm");
return TRUE;  // return TRUE unless you set the focus to a control
              // EXCEPTION: OCX Property Pages should return FALSE
}
void CAboutBox::OnBeforeNavigate2Explorer(LPDISPATCH pDisp, VARIANT FAR* URL, VARIANT FAR* Flags, VARIANT FAR* TargetFrameName, VARIANT FAR* PostData, VARIANT FAR* Headers, BOOL FAR* Cancel)
{
// TODO: Add your control notification handler code here
ASSERT(V_VT(URL) == VT_BSTR);
ASSERT(V_VT(TargetFrameName) == VT_BSTR);
ASSERT(V_VT(PostData) == (VT_VARIANT | VT_BYREF));
ASSERT(V_VT(Headers) == VT_BSTR);
ASSERT(Cancel != NULL); USES_CONVERSION; VARIANT* vtPostedData = V_VARIANTREF(PostData);
CByteArray array;
if (V_VT(vtPostedData) & VT_ARRAY)
{
// must be a vector of bytes
ASSERT(vtPostedData->parray->cDims == 1 && vtPostedData->parray->cbElements == 1); vtPostedData->vt |= VT_UI1;
COleSafeArray safe(vtPostedData); DWORD dwSize = safe.GetOneDimSize();
LPVOID pVoid;
safe.AccessData(&pVoid); array.SetSize(dwSize);
LPBYTE lpByte = array.GetData(); memcpy(lpByte, pVoid, dwSize);
safe.UnaccessData();
}
// make real parameters out of the notification CString strTargetFrameName(V_BSTR(TargetFrameName));
CString strURL = V_BSTR(URL);
CString strHeaders = V_BSTR(Headers);
DWORD nFlags = V_I4(Flags); // notify the user's class OnBeforeNavigate2(strURL, nFlags, strTargetFrameName,array, strHeaders, Cancel);}BOOL CAboutBox::LoadFromResource(LPCTSTR lpszResource)
{
HINSTANCE hInstance = AfxGetResourceHandle();
ASSERT(hInstance != NULL); CString strResourceURL;
BOOL bRetVal = TRUE;
LPTSTR lpszModule = new TCHAR[_MAX_PATH]; if (GetModuleFileName(hInstance, lpszModule, _MAX_PATH))
{
strResourceURL.Format(_T("res://%s/%s"), lpszModule, lpszResource);
Navigate(strResourceURL, 0, 0, 0);
}
else
bRetVal = FALSE; delete [] lpszModule;
return bRetVal;
}BOOL CAboutBox::LoadFromResource(UINT nRes)
{
HINSTANCE hInstance = AfxGetResourceHandle();
ASSERT(hInstance != NULL); CString strResourceURL;
BOOL bRetVal = TRUE;
LPTSTR lpszModule = new TCHAR[_MAX_PATH]; if (GetModuleFileName(hInstance, lpszModule, _MAX_PATH))
{
strResourceURL.Format(_T("res://%s/%d"), lpszModule, nRes);
Navigate(strResourceURL, 0, 0, 0);
}
else
bRetVal = FALSE; delete [] lpszModule;
return bRetVal;
}void CAboutBox::Navigate(LPCTSTR lpszURL, DWORD dwFlags /* = 0 */,
LPCTSTR lpszTargetFrameName /* = NULL */ ,
LPCTSTR lpszHeaders /* = NULL */, LPVOID lpvPostData /* = NULL */,
DWORD dwPostDataLen /* = 0 */)
{
CString strURL(lpszURL);
BSTR bstrURL = strURL.AllocSysString(); COleSafeArray vPostData;
if (lpvPostData != NULL)
{
if (dwPostDataLen == 0)
dwPostDataLen = lstrlen((LPCTSTR) lpvPostData); vPostData.CreateOneDim(VT_UI1, dwPostDataLen, lpvPostData);
} m_pBrowserApp->Navigate(bstrURL,
COleVariant((long) dwFlags, VT_I4),
COleVariant(lpszTargetFrameName, VT_BSTR),
vPostData,
COleVariant(lpszHeaders, VT_BSTR));
}void CAboutBox::Navigate2(LPITEMIDLIST pIDL, DWORD dwFlags /* = 0 */,
LPCTSTR lpszTargetFrameName /* = NULL */)
{
ASSERT(m_pBrowserApp != NULL); COleVariant vPIDL(pIDL);
COleVariant empty; m_pBrowserApp->Navigate2(vPIDL,
COleVariant((long) dwFlags, VT_I4),
COleVariant(lpszTargetFrameName, VT_BSTR),
empty, empty);
}void CAboutBox::Navigate2(LPCTSTR lpszURL, DWORD dwFlags /* = 0 */,
LPCTSTR lpszTargetFrameName /* = NULL */,
LPCTSTR lpszHeaders /* = NULL */,
LPVOID lpvPostData /* = NULL */, DWORD dwPostDataLen /* = 0 */)
{
ASSERT(m_pBrowserApp != NULL); COleSafeArray vPostData;
if (lpvPostData != NULL)
{
if (dwPostDataLen == 0)
dwPostDataLen = lstrlen((LPCTSTR) lpvPostData); vPostData.CreateOneDim(VT_UI1, dwPostDataLen, lpvPostData);
} COleVariant vURL(lpszURL, VT_BSTR);
COleVariant vHeaders(lpszHeaders, VT_BSTR);
COleVariant vTargetFrameName(lpszTargetFrameName, VT_BSTR);
COleVariant vFlags((long) dwFlags, VT_I4); m_pBrowserApp->Navigate2(vURL,
vFlags, vTargetFrameName, vPostData, vHeaders);
}void CAboutBox::Navigate2(LPCTSTR lpszURL, DWORD dwFlags,
CByteArray& baPostData, LPCTSTR lpszTargetFrameName /* = NULL */,
LPCTSTR lpszHeaders /* = NULL */)
{
ASSERT(m_pBrowserApp != NULL); COleVariant vPostData = baPostData;
COleVariant vURL(lpszURL, VT_BSTR);
COleVariant vHeaders(lpszHeaders, VT_BSTR);
COleVariant vTargetFrameName(lpszTargetFrameName, VT_BSTR);
COleVariant vFlags((long) dwFlags, VT_I4); ASSERT(m_pBrowserApp != NULL); m_pBrowserApp->Navigate2(vURL, vFlags, vTargetFrameName,
vPostData, vHeaders);
}void CAboutBox::OnDestroy()
{
m_pBrowserApp->Release(); // RELEASE(m_pBrowserApp);
CDialog::OnDestroy();
// TODO: Add your message handler code here

}void CAboutBox::OnBeforeNavigate2(LPCTSTR lpszURL, DWORD nFlags,
LPCTSTR lpszTargetFrameName, CByteArray& baPostData,
LPCTSTR lpszHeaders, BOOL* bCancel)
{
// default to continuing
* bCancel = FALSE; // user will override to handle this notification
UNREFERENCED_PARAMETER(nFlags);UNREFERENCED_PARAMETER(lpszTargetFrameName);UNREFERENCED_PARAMETER(baPostData);UNREFERENCED_PARAMETER(lpszHeaders);
const char APP_PROTOCOL[] = "app:";
int len = _tcslen(APP_PROTOCOL);
if (_tcsnicmp(lpszURL, APP_PROTOCOL, len)==0) {
OnAppCmd(lpszURL + len);
*bCancel = TRUE;//handle user-defined protocal
}
}
void CAboutBox::OnAppCmd(LPCTSTR lpszWhere)
{
if (_tcsicmp(lpszWhere,_T("ok"))==0) {
SendMessage(WM_COMMAND,IDOK);
}
}

// Machine generated IDispatch wrapper class(es) created by Microsoft Visual C++// NOTE: Do not modify the contents of this file. If this class is regenerated by
// Microsoft Visual C++, your modifications will be overwritten./////////////////////////////////////////////////////////////////////////////
// CWebBrowser2 wrapper classclass CWebBrowser2 : public CWnd
...

调试易

帮我看看这个异常！！特别是111222 and jiangsheng

解决方案 »