www.pudn.com > opengl_pick_sample.rar > dibsect.h

#ifndef __DIB_SECTION_CLASS_NCLUDE_H__ 
#define __DIB_SECTION_CLASS_NCLUDE_H__ 
 
// 
// DIBSection - 
// 
// Encapsulates a DIB section and a DC. 
// 
class DIBSection 
{ 
	void InitObject(void); 
protected: 
	HBITMAP m_hbmp; 
	HBITMAP m_hbmOld; 
	void* m_pBits; 
	CSize m_size; 
	CDC* m_pdc; 
	int m_total_width; 
	BITMAPINFOHEADER m_bih; 
	unsigned long m_bitcount; 
public: 
	DIBSection(); 
	DIBSection(const DIBSection& dib); 
	virtual ~DIBSection(); 
 
	void Copy(const DIBSection& dib); 
	DIBSection& operator=(const DIBSection& dib); 
 
	void Close(void); 
 
	int IsCreated(void)const{ return (m_pBits?1:0);} 
 
	  // Create a DIBSection 
	void Create(int cx, int cy, int nbits ); 
 
	  // Draw method 
	void Draw(CDC* pdcDest, int x, int y); 
 
	  // Resize method 
	void ResizeImage(DIBSection& dst_dib, int w, int h); 
 
	  // patblt method 
	void PatBlt(DWORD pattern); 
 
	CDC* GetDC() {return m_pdc;} 
	HBITMAP GetHandle() {return m_hbmp;} 
 
	unsigned long Width(void)const{ return m_size.cx;} 
	unsigned long Height(void)const{ return m_size.cy;} 
	unsigned long GetTotalWidth(void)const{ return m_total_width;} 
	void * GetBits(void){ return m_pBits;} 
	void * GetConstBits(void)const{ return m_pBits;} 
	BITMAPINFOHEADER& GetBIH(void){ return m_bih;} 
	unsigned long GetBitCount(void)const{ return m_bitcount;} 
	void SetPixel(UINT32 x, UINT32 y, COLORREF cr); 
	void GetPixel(UINT32 x, UINT32 y, COLORREF& cr); 
}; 
#endif