fade.h

C:Documents and SettingsAdministrator桌面VC++多媒体特效制作百例CHAR05PALFADE

/******************************************************************************\
*       This is a part of the Microsoft Source Code Samples. 
*       Copyright (C) 1993 Microsoft Corporation.
*       All rights reserved. 
*       This source code is only intended as a supplement to 
*       Microsoft Development Tools and/or WinHelp documentation.
*       See these sources for detailed information regarding the 
*       Microsoft samples programs.
\******************************************************************************/

// WIDTHBYTES performs DWORD-aligning of DIB scanlines.  The "bits"
// parameter is the bit count for the scanline (biWidth * biBitCount),
// and this macro returns the number of DWORD-aligned bytes needed 
// to hold those bits.

#define WIDTHBYTES(bits)    (((bits) + 31) / 32 * 4)

#define HDIB HANDLE
#define IS_WIN30_DIB(lpbi)  ((*(LPDWORD)(lpbi)) == sizeof(BITMAPINFOHEADER))
#define RECTWIDTH(lpRect)     ((lpRect)->right - (lpRect)->left)
#define RECTHEIGHT(lpRect)    ((lpRect)->bottom - (lpRect)->top)

HPALETTE FAR CreateDIBPaletteReserved (HDIB hDIB, int *nPalNumColors);
BOOL GetFileName (LPSTR szFileName);
BOOL FadeBitmap(HWND hWnd);
HANDLE OpenDIB (LPSTR szFile);
HANDLE ReadDibBitmapInfo (INT fh);
BOOL DibInfo (HANDLE hbi, LPBITMAPINFOHEADER lpbi);
VOID ReadBitMapFileHeaderandConvertToDwordAlign(HFILE fh, LPBITMAPFILEHEADER pbf, LPDWORD lpdwoff);

#define ISDIB(bft) ((bft) == BFT_BITMAP)
#define BFT_BITMAP 0x4d42   /* 'BM' */