DIBMAP.H

/************************************************************************** 
 * 
 *  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY 
 *  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR 
 *  PURPOSE. 
 * 
 *  Copyright 1992 - 1998 Microsoft Corporation.  All Rights Reserved. 
 * 
 **************************************************************************/ 
 
typedef DWORD * LPHISTOGRAM; 
// casting ensures values > 127 get zero-extended, not sign-extended 
#define RGB16(r,g,b) (\ 
((WORD)(UINT)(((int)(UINT)(r) >> 3) << 10)|\ 
(((int)(UINT)(g) >> 3) << 5)|\ 
(((int)(UINT)(b) >> 3) << 0))) 
 
LPHISTOGRAM InitHistogram( 
LPHISTOGRAM lpHistogram); 
void FreeHistogram( 
LPHISTOGRAM lpHistogram); 
HPALETTE HistogramPalette( 
LPHISTOGRAM lpHistogram, 
LPBYTE lp16to8, 
int nColors); 
BOOL DibHistogram( 
LPBITMAPINFOHEADER lpbi, 
LPBYTE lpBits, 
int x, 
int y, 
int dx, 
int dy, 
LPHISTOGRAM lpHistogram); 
LPBITMAPINFOHEADER DibReduce( 
LPBITMAPINFOHEADER lpbi, 
LPBYTE lpBits, 
HPALETTE hpal, 
LPBYTE lp16to8); 
void NEAR PASCAL UseHistogram( 
LPHISTOGRAM lpHistogram); 
DWORD near _fastcall GetHistogram( 
BYTE r, 
BYTE g, 
BYTE b); 
void near _fastcall IncHistogram( 
WORD rgb16);