/// <summary>
/// 开启设备
/// </summary>
/// <returns></returns>
private IntPtr OpenDevice()
{
IntPtr hDevice = IntPtr.Zero;
// 开启设备
hDevice = ftrNativeLib.ftrScanOpenDevice();
if (hDevice == IntPtr.Zero)
{
return(IntPtr.Zero);
}
m_ImageSize = new FTRSCAN_IMAGE_SIZE();
if (!ftrNativeLib.ftrScanGetImageSize(hDevice, ref m_ImageSize))
{
ftrNativeLib.ftrScanCloseDevice(hDevice);
return(IntPtr.Zero);
}
m_pImage = new byte[m_ImageSize.nImageSize];
for (int i = 0; i < m_pImage.Length; i++)
{
m_pImage[i] = (byte)(255 - m_pImage[i]);
}
return(hDevice);
}
public static extern bool ftrScanGetImageSize(IntPtr hDevice, ref FTRSCAN_IMAGE_SIZE pImageSize);
