创建 COM 对象的 CoCreateInstance 中的访问冲突

问题描述 投票：0回答：0

我正在尝试与我不想说的制造商的研究光谱仪进行交流。

制造商在 Visual C++ 6 中提供了一些 DLL 和示例项目，但显然不支持它们。我能够使用 VS 2017 和 2022 进行编译。它基于具有 ATL 支持的 MFC。但是，当根据制造商手册在 VS 2022 和 2017 中创建新项目时，具有相同的项目属性的代码在调用 

CoCreateInstance
.

时确实会抛出访问冲突错误

有人知道导致问题的原因以及为什么它适用于示例代码吗？ 

CoCreateInstance
中的第一个 
LoadMono()
工作完美，我的代码在之后的初始化中中断。 
clsid
看起来不错。我认为问题与无法访问的
IJYMonoReqd
有关。

下面是我的代码。为了便于阅读，我删除了大部分向导生成的代码：

// MFCAppDlg.cpp:
//

#include "pch.h"
#include "framework.h"
#include "MFCApp.h"
#include "MFCAppDlg.h"
#include "DlgProxy.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg-Dialog "Info"

class CAboutDlg : public CDialogEx
{
...
};

CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
...
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CMFCAppDlg-MainDialog


IMPLEMENT_DYNAMIC(CMFCAppDlg, CDialogEx);

CMFCAppDlg::CMFCAppDlg(CWnd* pParent /*=nullptr*/)
    : CDialogEx(IDD_MFCAPP_DIALOG, pParent)
{
..
    m_jyMono = NULL;
}

CMFCAppDlg::~CMFCAppDlg()
{
...
}

void CMFCAppDlg::DoDataExchange(CDataExchange* pDX)
{
...
}

BEGIN_MESSAGE_MAP(CMFCAppDlg, CDialogEx)
...
END_MESSAGE_MAP()


BOOL CMFCAppDlg::OnInitDialog()
{
    CDialogEx::OnInitDialog();

    ...
    // TODO: Additional Init
    LoadMonos();

    //create an instance of the mono object
    HRESULT hr = S_OK;
    CLSID clsid;
    if (m_jyMono == NULL)
    {
        hr = CLSIDFromProgID(L"JYMono.Monochromator", &clsid);
        hr = CoCreateInstance(clsid, NULL, CLSCTX_ALL, __uuidof(IJYMonoReqd), (void**)&m_jyMono); //breaks here
        if (FAILED(hr)
        {
            TRACE("Failed to create Mono Object. Err: %ld", hr);
            return FALSE;
        }
    }
    return TRUE;
}

...

void CMFCAppDlg::LoadMonos()
{
    USES_CONVERSION;
    IJYConfigBrowerInterface* pConfigBrowser;
    HRESULT hr = CoCreateInstance(__uuidof(JYConfigBrowerInterface),
        NULL, CLSCTX_INPROC_SERVER,
        __uuidof(IJYConfigBrowerInterface),
        (void**)&pConfigBrowser);
    pConfigBrowser->Load();
    CComBSTR name, monoID;


    bool bMore = true;

    int i = 0;
    pConfigBrowser->GetFirstMono(&name, &monoID);
    m_monoArray[i][0] = W2A(monoID);
    m_monoArray[i][1] = W2A(name);
    i++;


    CString strName, strMonoID;
    pConfigBrowser->GetNextMono(&name, &monoID);

    while (true)
    {
        strName = W2A(name);
        strMonoID = W2A(monoID);

        if (strName.IsEmpty() && strMonoID.IsEmpty())
            break;

        m_monoArray[i][0] = strMonoID;
        m_monoArray[i][1] = strName;
        i++;
        pConfigBrowser->GetNextMono(&name, &monoID);
    }

}

和标题：

// MFCAppDlg.h: Headerfile
//

#pragma once

class CMFCAppDlgAutoProxy;


#import "C:\Program Files (x86)\Jobin Yvon\Common\JY Components\JYSupport\jysystemLib.dll" raw_interfaces_only, raw_native_types, no_namespace, named_guids

#import "C:\Program Files (x86)\Jobin Yvon\Common\JY Components\JYSupport\JYConfigBrowserComponent.dll" raw_interfaces_only, raw_native_types, no_namespace, named_guids

// CMFCAppDlg-Dialog
class CMFCAppDlg : public CDialogEx
{
    DECLARE_DYNAMIC(CMFCAppDlg);
    friend class CMFCAppDlgAutoProxy;

// Construction
public:
    CMFCAppDlg(CWnd* pParent = nullptr);    // Standardkonstruktor
    virtual ~CMFCAppDlg();

#ifdef AFX_DESIGN_TIME
    enum { IDD = IDD_MFCAPP_DIALOG };
#endif

    protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV-Unterstützung

// Implementation
protected:
    CMFCAppDlgAutoProxy* m_pAutoProxy;
    HICON m_hIcon;
    BOOL CanExit();
    virtual BOOL OnInitDialog();
    afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
    afx_msg void OnPaint();
    afx_msg HCURSOR OnQueryDragIcon();
    afx_msg void OnClose();
    virtual void OnOK();
    virtual void OnCancel();
    DECLARE_MESSAGE_MAP()
private:
    //Mono functions
    void LoadMonos();

    CString m_monoArray[10][2];
    IJYMonoReqd *m_jyMono;
};

到目前为止我试过：

  1. 重新注册的 DLLs
  2. 尝试了不同的 VS 版本。使用 COM 实现和使用 VS 2017 的旧 V Studio 似乎对某些用户有效。
  3. 检查 oleview 中 COM 对象的启动访问

编辑：

调用堆栈如下所示：

    02d11004()  Unknown No symbols loaded.
[Frames below may be incorrect and/or missing]      Annotated Frame
user32.dll!__InternalCallWinProc@20()   Unknown Non-user code. Symbols loaded.
user32.dll!UserCallWinProcCheckWow()    Unknown Non-user code. Symbols loaded.
user32.dll!CallWindowProcAorW(long ,struct HWND__ *,enum _WM_VALUE,unsigned int,long,int)   Unknown Non-user code. Symbols loaded.
user32.dll!_CallWindowProcA@20()    Unknown Non-user code. Symbols loaded.
mfc140d.dll!_AfxActivationWndProc(HWND__ * hWnd=0x000a04f0, unsigned int nMsg=129, unsigned int wParam=0, long lParam=3854696) Line 478 C++ Non-user code. Symbols loaded.
user32.dll!__InternalCallWinProc@20()   Unknown Non-user code. Symbols loaded.
user32.dll!UserCallWinProcCheckWow()    Unknown Non-user code. Symbols loaded.
user32.dll!DispatchClientMessage()  Unknown Non-user code. Symbols loaded.
user32.dll!__fnINLPCREATESTRUCT()   Unknown Non-user code. Symbols loaded.
ntdll.dll!_KiUserCallbackDispatcher@12()    Unknown Non-user code. Symbols loaded.
user32.dll!CreateWindowInternal()   Unknown Non-user code. Symbols loaded.
user32.dll!_CreateWindowExA@48()    Unknown Non-user code. Symbols loaded.
JYMono.dll!100476c2()   Unknown Non-user code. Binary was not built with debug information.
JYMono.dll!10043562()   Unknown Non-user code. Binary was not built with debug information.
JYMono.dll!10042bc9()   Unknown Non-user code. Binary was not built with debug information.
JYMono.dll!100fa0c0()   Unknown Non-user code. Binary was not built with debug information.
JYMono.dll!100fa08b()   Unknown Non-user code. Binary was not built with debug information.
JYMono.dll!10042239()   Unknown Non-user code. Binary was not built with debug information.
JYMono.dll!10042443()   Unknown Non-user code. Binary was not built with debug information.
combase.dll!CServerContextActivator::CreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c) Line 881    C++ Non-user code. Symbols loaded.
combase.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesOut * * ppActPropsOut=0x003ae52c) Line 1931    C++ Non-user code. Symbols loaded.
combase.dll!CApartmentActivator::CreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c) Line 2189   C++ Non-user code. Symbols loaded.
combase.dll!CProcessActivator::CCICallback(unsigned long dwContext=1, IUnknown * pUnkOuter=0x00000000, ActivationPropertiesIn * pActIn=0x003adcc0, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c) Line 1645 C++ Non-user code. Symbols loaded.
combase.dll!CProcessActivator::AttemptActivation(ActivationPropertiesIn * pActIn=0x003adcc0, IUnknown * pUnkOuter=0x00000000, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c, HRESULT(__stdcallCProcessActivator::*)(unsigned long, IUnknown *, ActivationPropertiesIn *, IActivationPropertiesIn *, IActivationPropertiesOut * *) pfnCtxActCallback=0x765a0cb0, unsigned long dwContext=1) Line 1527    C++ Non-user code. Symbols loaded.
combase.dll!CProcessActivator::ActivateByContext(ActivationPropertiesIn * pActIn=0x003adcc0, IUnknown * pUnkOuter=0x00000000, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c, HRESULT(__stdcallCProcessActivator::*)(unsigned long, IUnknown *, ActivationPropertiesIn *, IActivationPropertiesIn *, IActivationPropertiesOut * *) pfnCtxActCallback=0x765a0cb0) Line 1393   C++ Non-user code. Symbols loaded.
combase.dll!CProcessActivator::CreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c) Line 1271 C++ Non-user code. Symbols loaded.
combase.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesOut * * ppActPropsOut=0x003ae52c) Line 1931    C++ Non-user code. Symbols loaded.
combase.dll!CClientContextActivator::CreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesIn * pInActProperties=0x003ade94, IActivationPropertiesOut * * ppOutActProperties=0x003ae52c) Line 570    C++ Non-user code. Symbols loaded.
combase.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter=0x00000000, IActivationPropertiesOut * * ppActPropsOut=0x003ae52c) Line 1983    C++ Non-user code. Symbols loaded.
combase.dll!ICoCreateInstanceEx(const _GUID & OriginalClsid, IUnknown * punkOuter=0x00000000, unsigned long dwClsCtx=23, _COSERVERINFO * pServerInfo=0x00000000, unsigned long dwCount=1, unsigned long dwActvFlags=0, tagMULTI_QI * pResults=0x003ae91c, ActivationPropertiesIn * pActIn=0x003adcc0) Line 2032 C++ Non-user code. Symbols loaded.
combase.dll!CComActivator::DoCreateInstance(const _GUID & Clsid={...}, IUnknown * punkOuter=0x00000000, unsigned long dwClsCtx=23, _COSERVERINFO * pServerInfo=0x00000000, unsigned long dwCount=1, tagMULTI_QI * pResults=0x003ae91c, ActivationPropertiesIn * pActIn=0x00000000) Line 401 C++ Non-user code. Symbols loaded.
[Inline Frame] combase.dll!CoCreateInstanceEx(const _GUID &) Line 177   C++ Non-user code. Symbols loaded.
combase.dll!CoCreateInstance(const _GUID & rclsid={...}, IUnknown * pUnkOuter=0x00000000, unsigned long dwContext=23, const _GUID & riid={...}, void * * ppv=0x003afa1c) Line 121   C++ Non-user code. Symbols loaded.
Example.exe!CExampleDlg::OnInitDialog() Line 134    C++ Symbols loaded.
mfc140d.dll!AfxDlgProc(HWND__ * hWnd=0x0005047a, unsigned int message=272, unsigned int __formal=66690, long __formal=0) Line 28    C++ Non-user code. Symbols loaded.
user32.dll!__InternalCallWinProc@20()   Unknown Non-user code. Symbols loaded.
user32.dll!UserCallDlgProcCheckWow()    Unknown Non-user code. Symbols loaded.
user32.dll!DefDlgProcWorker()   Unknown Non-user code. Symbols loaded.
user32.dll!_DefDlgProcA@16()    Unknown Non-user code. Symbols loaded.
user32.dll!__InternalCallWinProc@20()   Unknown Non-user code. Symbols loaded.
user32.dll!UserCallWinProcCheckWow()    Unknown Non-user code. Symbols loaded.
user32.dll!CallWindowProcAorW(long ,struct HWND__ *,enum _WM_VALUE,unsigned int,long,int)   Unknown Non-user code. Symbols loaded.
user32.dll!_CallWindowProcA@20()    Unknown Non-user code. Symbols loaded.
mfc140d.dll!CWnd::DefWindowProcA(unsigned int nMsg=272, unsigned int wParam=66690, long lParam=0) Line 1100 C++ Non-user code. Symbols loaded.
mfc140d.dll!CWnd::Default() Line 297    C++ Non-user code. Symbols loaded.
mfc140d.dll!CDialog::HandleInitDialog(unsigned int __formal=66690, long __formal=0) Line 740    C++ Non-user code. Symbols loaded.
mfc140d.dll!CWnd::OnWndMsg(unsigned int message=272, unsigned int wParam=66690, long lParam=0, long * pResult=0x003af204) Line 2441 C++ Non-user code. Symbols loaded.
mfc140d.dll!CWnd::WindowProc(unsigned int message=272, unsigned int wParam=66690, long lParam=0) Line 2099  C++ Non-user code. Symbols loaded.
mfc140d.dll!AfxCallWndProc(CWnd * pWnd=0x003af8f4, HWND__ * hWnd=0x0005047a, unsigned int nMsg=272, unsigned int wParam=66690, long lParam=0) Line 265  C++ Non-user code. Symbols loaded.
mfc140d.dll!AfxWndProc(HWND__ * hWnd=0x0005047a, unsigned int nMsg=272, unsigned int wParam=66690, long lParam=0) Line 418  C++ Non-user code. Symbols loaded.
mfc140d.dll!AfxWndProcBase(HWND__ * hWnd=0x0005047a, unsigned int nMsg=272, unsigned int wParam=66690, long lParam=0) Line 299  C++ Non-user code. Symbols loaded.
user32.dll!__InternalCallWinProc@20()   Unknown Non-user code. Symbols loaded.
user32.dll!UserCallWinProcCheckWow()    Unknown Non-user code. Symbols loaded.
user32.dll!SendMessageWorker(struct tagWND *,unsigned int,unsigned int,long,int)    Unknown Non-user code. Symbols loaded.
user32.dll!InternalCreateDialog()   Unknown Non-user code. Symbols loaded.
user32.dll!_CreateDialogIndirectParamAorW@24()  Unknown Non-user code. Symbols loaded.
user32.dll!_CreateDialogIndirectParamA@20() Unknown Non-user code. Symbols loaded.
mfc140d.dll!IsolationAwareCreateDialogIndirectParamA(HINSTANCE__ * hInstance=0x007c0000, const DLGTEMPLATE * lpTemplate=0x0080ee70, HWND__ * hWndParent=0x00000000, int(__stdcall*)(HWND__ *, unsigned int, unsigned int, long) lpDialogFunc=0x5979ead0, long dwInitParam=0) Line 539   C++ Non-user code. Symbols loaded.
mfc140d.dll!CWnd::CreateDlgIndirect(const DLGTEMPLATE * lpDialogTemplate=0x0080ee70, CWnd * pParentWnd=0x00000000, HINSTANCE__ * hInst=0x007c0000) Line 373 C++ Non-user code. Symbols loaded.
mfc140d.dll!CWnd::CreateRunDlgIndirect(const DLGTEMPLATE * lpDialogTemplate=0x0080ee70, CWnd * pParentWnd=0x00000000, HINSTANCE__ * hInst=0x007c0000) Line 475  C++ Non-user code. Symbols loaded.
mfc140d.dll!CDialog::DoModal() Line 652 C++ Non-user code. Symbols loaded.
Example.exe!CExampleApp::InitInstance() Line 126    C++ Symbols loaded.
mfc140d.dll!AfxWinMain(HINSTANCE__ * hInstance=0x007c0000, HINSTANCE__ * hPrevInstance=0x00000000, char * lpCmdLine=0x00614740, int nCmdShow=10) Line 37    C++ Non-user code. Symbols loaded.
Example.exe!WinMain(HINSTANCE__ * hInstance=0x007c0000, HINSTANCE__ * hPrevInstance=0x00000000, char * lpCmdLine=0x00614740, int nCmdShow=10) Line 26   C++ Symbols loaded.
Example.exe!invoke_main() Line 107  C++ Non-user code. Symbols loaded.
Example.exe!__scrt_common_main_seh() Line 288   C++ Non-user code. Symbols loaded.
Example.exe!__scrt_common_main() Line 331   C++ Non-user code. Symbols loaded.
Example.exe!WinMainCRTStartup() Line 17 C++ Non-user code. Symbols loaded.
kernel32.dll!@BaseThreadInitThunk@12()  Unknown Non-user code. Symbols loaded.
ntdll.dll!__RtlUserThreadStart()    Unknown Non-user code. Symbols loaded.
ntdll.dll!__RtlUserThreadStart@8()  Unknown Non-user code. Symbols loaded.

@IInspectable：

CLSIDFromProgID
似乎有效并返回
S_OK

c++ mfc com compatibility atl
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