private void listView_SelectedIndexChanged(object sender, EventArgs e) { if (listView.FocusedItem == null) { return; } var tabPage = listView.FocusedItem.Tag as TabPage; if (tabPage == null) { return; } tabControl.SelectedTab = tabPage; // Record 페이지일시 FFmpeg 확인 if (tabPage == tabPage_record && !_isChkecedFFmpeg) { var ffmpeg = new FFmpeg(); if (ffmpeg.CheckAndDownloadExecuteFile()) { EnableRecordTabPage(true); comboBox_sourceAudio.DataSource = GetAudioSources(); comboBox_sourceAudio.SelectedItem = CaptureSetting.AudioSource; _isChkecedFFmpeg = true; } else { EnableRecordTabPage(false); } } }