CameraImage.Form1.Form1_FormClosing C# (CSharp) Method

        private void Form1_FormClosing( object sender, FormClosingEventArgs e )
        {
            try {
                // スレッドの終了
                shouldRun = false;
                if ( readerThread != null ) {
                    readerThread.Join();
                }
            }
            catch ( Exception ex ) {
                MessageBox.Show( ex.Message );
            }
        }