private void fFMpegPathButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
var openFileDialog = new OpenFileDialog
{
FileName = fFMpegPathTextBox.Text,
Multiselect = false
};
var result = openFileDialog.ShowDialog(this.GetIWin32Window());
if (result != DialogResult.OK) return;
var foldername = openFileDialog.FileName;
fFMpegPathTextBox.Text = foldername;
}
}