//trace.cpp

LPPOINT GetOutline(LPDWORD image,int iWidth,int iHeight,DWORD BackColor,int *nCount);
void FreeOutline(LPPOINT outline);

//traceEx.cpp

LPBYTE GetOutlineEx(LPDWORD image,int iWidth,int iHeight,int BackColor);
POINT* GetlpPoints(LPBYTE outline);
INT* GetlpPolyCounts(LPBYTE outline);
int GetnCount(LPBYTE outline);
void FreeOutlineEx(LPBYTE outline);