public static HWRESULT HWDetectFaceKeyPoints(HW_HANDLE Handle,
IntPtr pImg,
int nImgWidth, int nImgHeight,
ref int pnMaxFace,
ref HWFaceInfo[] pFaceInfo)
{
if (pnMaxFace <= 0)
{
return(S_FAIL);
}
int nSizeStruct = Marshal.SizeOf(typeof(HWFaceInfo));
IntPtr ptr = Marshal.AllocHGlobal(nSizeStruct * pnMaxFace);
HWRESULT hr = HWDetectFaceKeyPoints(Handle, pImg, nImgWidth, nImgHeight, ref pnMaxFace, ptr);
if (hr == S_OK)
{
IntPtr ptrData = ptr;
for (int i = 0; i < pnMaxFace; i++)
{
pFaceInfo[i] = (HWFaceInfo)Marshal.PtrToStructure(ptrData, typeof(HWFaceInfo));
ptrData += nSizeStruct;
}
}
Marshal.FreeHGlobal(ptr);
return(hr);
}
public void Dispose()
{
if (handleLib != IntPtr.Zero)
{
HWRelease(ref handleLib);
handleLib = IntPtr.Zero;
}
HWReleaseD();
if (idPhotoData != null)
{
PicPixel.DeletePicPixel(ref idPhotoData);
}
if (livePhotoData != null)
{
PicPixel.DeletePicPixel(ref livePhotoData);
}
ClearPhoto(ref bmLivePhoto);
ClearPhoto(ref bmFaceLivePhoto);
}
public static extern HWRESULT HWDetectFaceKeyPoints(HW_HANDLE Handle,
IntPtr pImg,
int nImgWidth, int nImgHeight,
ref int pnMaxFace,
IntPtr pFaceInfo);
public static extern HWRESULT HWRelease(ref HW_HANDLE pHandle);
public static extern HWRESULT HWInitial(ref HW_HANDLE pHandle, [MarshalAs(UnmanagedType.LPStr)] string strName);
public static extern HWRESULT HWCompareFeature(HW_HANDLE Handle,
IntPtr pFeaA,
IntPtr pFeaB,
ref float fScore);
public static extern HWRESULT HWExtractFeature(HW_HANDLE Handle,
IntPtr pImg, int nImgWidth, int nImgHeight,
ref HWFaceInfo pFaceInfo,
IntPtr pOutFeature);
public static extern HWRESULT HWGetFeatureSize(HW_HANDLE Handle, ref int piFtrSize);
public static extern HWRESULT HWSetPortrait(HW_HANDLE Handle, int iPortrait);