关于 “missing storage-class or type specifiers”

正在编一个视频采集的程序，但有个错误是关于“missing storage-class or type specifiers”的，不知该如何修改，望大家伸出援手:)

// MainFrm.h : interface of the CMainFrame class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_MAINFRM_H__9AA70358_215F_4222_8F27_ACB75F760999__INCLUDED_)
#define AFX_MAINFRM_H__9AA70358_215F_4222_8F27_ACB75F760999__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
typedef struct
{
int headsize;
char buffer[32000];

}DIBINFO,*PDIBINFO;


DIBINFO m_dibinfo;
CFrameWnd m_wndSource;
HWND m_hWndCap;
CAPDRIVERCAPS m_caps;
void ChangeSize();


class CMainFrame : public CFrameWnd
{

protected: // create from serialization only
CMainFrame();
DECLARE_DYNCREATE(CMainFrame)

// Attributes
public:

// Operations
public:

// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CMainFrame)
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
//}}AFX_VIRTUAL

// Implementation




virtual ~CMainFrame();
#ifdef _DEBUG
virtual void AssertValid() const;
virtual void Dump(CDumpContext& dc) const;
#endif

protected: // control bar embedded members
CStatusBar m_wndStatusBar;
CToolBar m_wndToolBar;

// Generated message map functions
public:
//{{AFX_MSG(CMainFrame)
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnClose();
afx_msg void OnPreview();
afx_msg void OnSource();
afx_msg void OnFormat();
afx_msg void OnCapture();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};


/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_MAINFRM_H__9AA70358_215F_4222_8F27_ACB75F760999__INCLUDED_)

AVICapVideo.cpp
c:\program files\microsoft visual studio\myprojects\avicapvideo\mainfrm.h(25) : error C2146: syntax error : missing ';' before identifier 'm_caps'
c:\program files\microsoft visual studio\myprojects\avicapvideo\mainfrm.h(25) : error C2501: 'CAPDRIVERCAPS' : missing storage-class or type specifiers
c:\program files\microsoft visual studio\myprojects\avicapvideo\mainfrm.h(25) : fatal error C1004: unexpected end of file found