functions.h

又VC＋＋实现的基于TWAIN的扫描仪图像输入处理软件

extern void NotifyXferReady(void);
extern void LogMessage(char msg[]);
//extern TW_UINT16 ImageNativeXferMsg (PTWMSG pTWMsg);
//Four channel types.
#define MASTERCHANNEL 0
#define REDCHANNEL  3
#define GREENCHANNEL  2
#define BLUECHANNEL  1
//Three macro to get seperatal color(r,g,b) from the mixed COLORREF.
//#define GetRValue(rgb)   ((BYTE) (rgb)) 
//#define GetGValue(rgb)   ((BYTE) (((DWORD) (rgb)) >> 8))
//#define GetBValue(rgb)   ((BYTE) (((DWORD) (rgb)) >> 16))