public void DownloadFile(int userId, IRemoteFile remoteFile, string destinationPath)
{
if (remoteFile.Size > 0)
{
NET_DVR_PIC_PARAM temp = new NET_DVR_PIC_PARAM
{
pDVRFileName = remoteFile.Name,
pSavedFileBuf = Marshal.AllocHGlobal((int)remoteFile.Size),
dwBufLen = (uint)remoteFile.Size
};
if (SdkHelper.InvokeSDK(() => NET_DVR_GetPicture_V50(userId, ref temp)))
{
SdkHelper.InvokeSDK(() => NET_DVR_GetPicture(userId, temp.pDVRFileName, destinationPath));
}
Marshal.FreeHGlobal(temp.pSavedFileBuf);
}
}
private static extern bool NET_DVR_GetPicture_V50(int lUserID, ref NET_DVR_PIC_PARAM lpPicParam);
