www.pudn.com > VisSDK.rar > ExCameraDoc.h

// ExCameraDoc.h : interface of the CExCameraDoc class 
// 
// Copyright © 1997-2000 Microsoft Corporation, All Rights Reserved 
// 
///////////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_EXCAMERADOC_H__C04069EB_02EC_11D1_AA81_0000F803FF4F__INCLUDED_) 
#define AFX_EXCAMERADOC_H__C04069EB_02EC_11D1_AA81_0000F803FF4F__INCLUDED_ 
 
#if _MSC_VER >= 1000 
#pragma once 
#endif // _MSC_VER >= 1000 
 
 
//typedef BYTE							CExCameraPixel; 
//typedef unsigned short				CExCameraPixel;  // Should fail 
//typedef unsigned long					CExCameraPixel; 
typedef CVisRGBABytePixel				CExCameraPixel; 
//typedef CVisYUVABytePixel				CExCameraPixel; 
//typedef CVisYUVAUShortPixel			CExCameraPixel;  // Won't display 
 
 
typedef CVisImage		CExCameraImage; 
 
 
class CExCameraDoc : public CDocument 
{ 
protected: // create from serialization only 
	CExCameraDoc(); 
	DECLARE_DYNCREATE(CExCameraDoc) 
 
// Attributes 
public: 
	CVisSequence m_sequence; 
 
	// Note:  We have this member so that the background thread can invalidate 
	// the current view.  The background thread can't call functions like 
	// UpdateAllViews because MFC is not multi-threaded. 
	HWND m_hwndView; 
 
	CExCameraImage Image(void) 
	{ 
		return m_image; 
	} 
 
	void ImageDisplayed(void); 
 
	void DialogDisplayed(void); 
 
	void GrabNext(DWORD cmsTimeout = 2000); 
 
	bool FInBackgroundUpdate(void) 
	{ 
		return m_fUpdateInBackground; 
	} 
 
	void SetBackgroundUpdate(bool f = true) 
	{ 
		if (f) 
			StartBackgroundUpdate(); 
		else 
			StopBackgroundUpdate(); 
	} 
 
	void StartBackgroundUpdate(void); 
 
	void StopBackgroundUpdate(void); 
 
	inline void ViewAttached(HWND hwnd) 
	{ 
		SetBackgroundUpdate(m_sequence.HasImageSource() && 
				m_sequence.ImageSource().IsValid()); 
		m_hwndView = hwnd; 
		m_pThread->ResumeThread(); 
	} 
 
 
// Operations 
public: 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CExCameraDoc) 
	public: 
	virtual BOOL OnNewDocument(); 
	virtual void Serialize(CArchive& ar); 
	virtual void DeleteContents(); 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	virtual ~CExCameraDoc(); 
#ifdef _DEBUG 
	virtual void AssertValid() const; 
	virtual void Dump(CDumpContext& dc) const; 
#endif 
 
protected: 
	CExCameraImage m_image; 
	CWinThread *m_pThread; 
	bool m_fKillThread; 
	DWORD m_cmsStart; 
	DWORD m_cmsEnd; 
	DWORD m_cFrameGrabbed; 
	DWORD m_cFrameDisplayed; 
	bool m_fUpdateInBackground; 
	bool m_fGrabSingleFrame; 
	bool m_fUpdateDisplay; 
 
	CVisTimer2 m_timerGrabbed; 
	CVisTimer2 m_timerDisplayed; 
	double m_dblRateGrabbed; 
	double m_dblRateDisplayed; 
 
	static UINT __cdecl StaticThreadMain(void *pvDocument); 
	UINT ThreadMain(void); 
 
	void ResetStatusInfo(void); 
 
	void UpdateStatusInfo(void); 
 
// Generated message map functions 
protected: 
	//{{AFX_MSG(CExCameraDoc) 
	afx_msg void OnDecSize(); 
	afx_msg void OnIncSize(); 
	afx_msg void OnUpdateDecSize(CCmdUI* pCmdUI); 
	afx_msg void OnUpdateIncSize(CCmdUI* pCmdUI); 
	afx_msg void OnUpdateDisplay(); 
	afx_msg void OnUpdateUpdateDisplay(CCmdUI* pCmdUI); 
	afx_msg void OnCapture(); 
	afx_msg void OnUpdateCapture(CCmdUI* pCmdUI); 
	afx_msg void OnGrab(); 
	afx_msg void OnUpdateGrab(CCmdUI* pCmdUI); 
	afx_msg void OnSelectDevice(); 
	afx_msg void OnUpdateSelectDevice(CCmdUI* pCmdUI); 
	afx_msg void OnGrabOne(); 
	afx_msg void OnUpdateGrabOne(CCmdUI* pCmdUI); 
	//}}AFX_MSG 
	DECLARE_MESSAGE_MAP() 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
 
//{{AFX_INSERT_LOCATION}} 
// Microsoft Developer Studio will insert additional declarations immediately before the previous line. 
 
#endif // !defined(AFX_EXCAMERADOC_H__C04069EB_02EC_11D1_AA81_0000F803FF4F__INCLUDED_)