public void SetOutPutWindow()
{
System.Diagnostics.Debug.Assert(m_pHandle != IntPtr.Zero);
IntPtr buffer = new IntPtr();
int size = 0;
HVSTATUS status = USBCameraAPI.HVGetDeviceInfo(m_pHandle, HV_DEVICE_INFO.DESC_RESOLUTION, buffer, ref size);
buffer = Marshal.AllocHGlobal(size);
status = USBCameraAPI.HVGetDeviceInfo(m_pHandle, HV_DEVICE_INFO.DESC_RESOLUTION, buffer, ref size);
USBCameraAPI.HV_VERIFY(status);
int[] type = new int[64];
Marshal.Copy(buffer, type, 0, 64);
Marshal.FreeHGlobal(buffer);
m_OutPutWindow.Width = type[(int)m_kResolotion * 2];
m_OutPutWindow.Height = type[(int)m_kResolotion * 2 + 1];
status = USBCameraAPI.HVSetOutputWindow(m_pHandle, m_OutPutWindow.X, m_OutPutWindow.Y, m_OutPutWindow.Width, m_OutPutWindow.Height);
USBCameraAPI.HV_VERIFY(status);
}