dibapi.h

又VC＋＋实现的基于TWAIN的扫描仪图像输入处理软件

//////////////////////////////////////////////////////////////////////////////////
// dibapi.h
void      WINAPI  SetPoint(LPSTR lpBmpData, int width, int height, int x, int y, COLORREF rgb);
void      WINAPI  GetPoint(LPSTR lpBmpData, int width, int height, int x, int y, COLORREF *rgb, bool gray);

#ifndef _INC_DIBAPI
#define _INC_DIBAPI

/* Handle to a DIB */
DECLARE_HANDLE(HDIB);

/* DIB constants */
#define PALVERSION   0x300

/* DIB Macros*/

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

// 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)

/* Function prototypes */
BOOL      WINAPI  PaintDIB (HDC, LPRECT, HDIB, LPRECT, CPalette* pPal);
BOOL      WINAPI  CreateDIBPalette(HDIB hDIB, CPalette* cPal);
LPSTR     WINAPI  FindDIBBits (LPSTR lpbi);
DWORD     WINAPI  DIBWidth (LPSTR lpDIB);
DWORD     WINAPI  DIBHeight (LPSTR lpDIB);
WORD      WINAPI  PaletteSize (LPSTR lpbi);
WORD      WINAPI  DIBNumColors (LPSTR lpbi);
HGLOBAL   WINAPI  CopyHandle (HGLOBAL h);

BOOL      WINAPI  SaveDIB (HDIB hDib, CFile& file);
HDIB      WINAPI  ReadDIBFile(LPSTR lpFileName);

#endif //!_INC_DIBAPI