Send data.
LONG NET_DVR_UploadSend( LONG lUploadHandle, LPNET_DVR_SEND_PARAM_IN pstruSendParamIN, void *lpOutBuffer );
[IN] File uploading handle, returned by NET_DVR_UploadFile_V40.
[IN] Uploaded data. See the structure NET_DVR_SEND_PARAM_IN for details.
[OUT] Output parameter, reserved, set to NULL
Return 0 for success, and return -1 for failure.
If -1 is returned, you can call NET_DVR_GetLastError to get the error code.