diballoc.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: diballoc.h,v 1.1.1.1.50.2 2004/07/26 08:56:07 pankajgupta Exp $
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 * ***** END LICENSE BLOCK ***** */

#ifndef __DIBALLOC_H_
#define __DIBALLOC_H_

#define DibPtr(lpbi)            (LPVOID)(DibColors(lpbi) + (UINT)(lpbi)->biClrUsed)
#define DibColors(lpbi)         ((LPRGBQUAD)((LPBYTE)(lpbi) + (int)(lpbi)->biSize))
#define WIDTHBYTES(i)           ((unsigned long)((i+31)&(~31))/8)  //ULONG aligned !
#define DibNumColors(lpbi)      ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8	\
                                        ? (WORD)(1 << (int)(lpbi)->biBitCount)          \
                                        : (WORD)(lpbi)->biClrUsed)

typedef HANDLE	HDIB;


class CHXDIBits
{
public:
    CHXDIBits();
    virtual ~CHXDIBits();

    HX_RESULT		GetDIBits(HDC			/* IN */	hDC,
				  HBITMAP		/* IN */	hBM,
				  UCHAR*&		/* OUT */	pBits,
				  BITMAPINFOHEADER*&	/* OUT */	pHeader);
private:
    HDIB		m_hDIB;
};

#endif // __DIBALLOC_H_