www.pudn.com > ballApp.rar > Graph.h

// Graph.h: interface for the CGraph class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_GRAPH_H__E27A0A7F_8740_4C44_8232_D67C4D3FE95B__INCLUDED_) 
#define AFX_GRAPH_H__E27A0A7F_8740_4C44_8232_D67C4D3FE95B__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#define SAFE_RELEASE(x) { if (x) x->Release(); x = NULL; } 
#define SAFE_DELETE(x)  { if (x) delete x; x = NULL; } 
 
 
class CGraphManager   
{ 
public: 
	CGraphManager(); 
	virtual ~CGraphManager(); 
 
public: 
	BOOL Create(); 
	BOOL SetVideoWindow(HWND hWnd); 
	BOOL Run(); 
	void Stop(); 
	void Pause(); 
 
protected: 
	BOOL QueryInterfaces(); 
 
private: 
	IGraphBuilder * m_pGraphBuilder; 
	IMediaControl * m_pControl; 
	IVideoWindow *  m_pVideoWindow; 
 
}; 
 
#endif // !defined(AFX_GRAPH_H__E27A0A7F_8740_4C44_8232_D67C4D3FE95B__INCLUDED_)