/// <summary>
        /// 视频录制.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        private void Recode_MenuItem_Click(object sender, EventArgs e)
        {
            if (channelID <= 0)
            {
                return;
            }

            var checkState = (sender as ToolStripMenuItem).CheckState;

            if (checkState == CheckState.Unchecked)
            {
                int ret = PlayerSdk.EasyPlayer_StartManuRecording(channelID);
                (sender as ToolStripMenuItem).CheckState = CheckState.Checked;
            }
            if (checkState == CheckState.Checked)
            {
                int ret = PlayerSdk.EasyPlayer_StopManuRecording(channelID);
                (sender as ToolStripMenuItem).CheckState = CheckState.Unchecked;
            }
        }