[C#/WINFORM] 웹 카메라 사용하기

TestSolution.zip

다운로드

[TestProject 프로젝트]

▶ MainForm.cs

using System;
using System.Windows.Forms;

using TestLibrary;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : Form
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Class
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 콤보 박스 항목 - ComboBoxItem

        /// <summary>
        /// 콤보 박스 항목
        /// </summary>
        private class ComboBoxItem
        {
            //////////////////////////////////////////////////////////////////////////////////////////////////// Field
            ////////////////////////////////////////////////////////////////////////////////////////// Private

            #region Field

            /// <summary>
            /// 비디오 캡처 장치
            /// </summary>
            private readonly VideoCaptureDevice videoCaptureDevice;

            #endregion

            //////////////////////////////////////////////////////////////////////////////////////////////////// Property
            ////////////////////////////////////////////////////////////////////////////////////////// Public

            #region 비디오 캡처 장치 - VideoCaptureDevice

            /// <summary>
            /// 비디오 캡처 장치
            /// </summary>
            public VideoCaptureDevice VideoCaptureDevice
            {
                get
                {
                    return this.videoCaptureDevice;
                }
            }

            #endregion

            //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
            ////////////////////////////////////////////////////////////////////////////////////////// Public

            #region 생성자 - ComboBoxItem(videoCaptureDevice)

            /// <summary>
            /// 생성자
            /// </summary>
            /// <param name="videoCaptureDevice">비디오 캡처 장치</param>
            public ComboBoxItem(VideoCaptureDevice videoCaptureDevice)
            {
                this.videoCaptureDevice = videoCaptureDevice;
            }

            #endregion

            //////////////////////////////////////////////////////////////////////////////////////////////////// Method
            ////////////////////////////////////////////////////////////////////////////////////////// Public

            #region 문자열 구하기 - ToString()

            /// <summary>
            /// 문자열 구하기
            /// </summary>
            /// <returns>문자열</returns>
            public override string ToString()
            {
                return this.videoCaptureDevice.Name;
            }

            #endregion
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            Load                                                 += Form_Load;
            this.videoCaptureDeviceComboBox.SelectedIndexChanged += videoCaptureDeviceComboBox_SelectedIndexChanged;
            this.startButton.Click                               += startButton_Click;
            this.stopButton.Click                                += stopButton_Click;
            this.imageButton.Click                               += imageButton_Click;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 폼 로드시 처리하기 - Form_Load(sender, e)

        /// <summary>
        /// 폼 로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Form_Load(object sender, EventArgs e)
        {
            foreach(VideoCaptureDevice videoCaptureDevice in this.webCameraControl.GetVideoCaptureDeviceList())
            {
                this.videoCaptureDeviceComboBox.Items.Add(new ComboBoxItem(videoCaptureDevice));
            }

            if(this.videoCaptureDeviceComboBox.Items.Count > 0)
            {
                this.videoCaptureDeviceComboBox.SelectedItem = this.videoCaptureDeviceComboBox.Items[0];
            }
        }

        #endregion
        #region 비디오 캡처 장치 콤보 박스 선택 인덱스 변경시 처리하기 - videoCaptureDeviceComboBox_SelectedIndexChanged(sender, e)

        /// <summary>
        /// 비디오 캡처 장치 콤보 박스 선택 인덱스 변경시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void videoCaptureDeviceComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            SetButtonEnabled();
        }

        #endregion
        #region 시작하기 버튼 클릭시 처리하기 - startButton_Click(sender, e)

        /// <summary>
        /// 시작하기 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void startButton_Click(object sender, EventArgs e)
        {
            ComboBoxItem item = (ComboBoxItem)this.videoCaptureDeviceComboBox.SelectedItem;

            try
            {
                this.webCameraControl.StartCapture(item.VideoCaptureDevice);
            }
            finally
            {
                SetButtonEnabled();
            }
        }

        #endregion
        #region 중단하기 버튼 클릭시 처리하기 - stopButton_Click(sender, e)

        /// <summary>
        /// 중단하기 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void stopButton_Click(object sender, EventArgs e)
        {
            this.webCameraControl.StopCapture();

            SetButtonEnabled();
        }

        #endregion
        #region 이미지 버튼 클릭시 처리하기 - imageButton_Click(sender, e)

        /// <summary>
        /// 이미지 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void imageButton_Click(object sender, EventArgs e)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();

            saveFileDialog.Filter = "비트맵 이미지|*.bmp";
            saveFileDialog.Title  = "이미지 저장";

            if(saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                this.webCameraControl.GetCurrentImage().Save(saveFileDialog.FileName);
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 버튼 이용 가능 여부 설정하기 - SetButtonEnabled()

        /// <summary>
        /// 버튼 이용 가능 여부 설정하기
        /// </summary>
        private void SetButtonEnabled()
        {
            this.startButton.Enabled = this.videoCaptureDeviceComboBox.SelectedItem != null;
            this.stopButton.Enabled  = this.webCameraControl.IsCapturing;
            this.imageButton.Enabled = this.webCameraControl.IsCapturing;
        }

        #endregion
    }
}