[C#/WINFORM] ManagementClass 클래스 : GetInstances 메소드를 사용해 메모리 사용량 구하기

TestProject.zip

다운로드

▶ MainForm.cs

using System;
using System.Management;
using System.Windows.Forms;

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

        #region Field

        /// <summary>
        /// 타이머
        /// </summary>
        private Timer timer;

        #endregion

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

        #region 생성자 - MainForm()

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

            this.timer = new Timer();

            this.timer.Interval = 1000;

            this.startButton.Click += startButton_Click;
            this.stopButton.Click  += stopButton_Click;
            this.timer.Tick        += timer_Tick;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

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

        /// <summary>
        /// 시작 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void startButton_Click(object sender, EventArgs e)
        {
            this.timer.Start();

            this.startButton.Enabled = false;
            this.stopButton.Enabled  = true;
        }

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

        /// <summary>
        /// 중단 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.timer.Stop();

            this.startButton.Enabled = true;
            this.stopButton.Enabled  = false;
        }

        #endregion
        #region 타이머 틱 처리하기 - timer_Tick(sender, e)

        /// <summary>
        /// 타이머 틱 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void timer_Tick(object sender, EventArgs e)
        {
            int totalMemoryKB = 0;
            int totalMemoryMB = 0;
            int freeMemoryKB  = 0;
            int freeMemoryMB  = 0;

            ManagementClass managementClass = new ManagementClass("Win32_OperatingSystem");

            ManagementObjectCollection managementObjectCollection = managementClass.GetInstances();

            foreach(ManagementObject managementObject in managementObjectCollection)
            {
                totalMemoryKB = int.Parse(managementObject["TotalVisibleMemorySize"].ToString());
                freeMemoryKB  = int.Parse(managementObject["FreePhysicalMemory"    ].ToString());
            }

            totalMemoryMB = totalMemoryKB / 1024;
            freeMemoryMB  = freeMemoryKB  / 1024;

            this.totalMemoryProgressBar.Maximum = totalMemoryMB;
            this.freeMemoryProgressBar.Maximum  = totalMemoryMB;
            this.useMemoryProgressBar.Maximum   = totalMemoryMB;

            this.totalMemoryLabel.Text = $"전체 메모리 : {totalMemoryMB}";
            this.freeMemoryLabel.Text  = $"여유 메모리 : {freeMemoryMB}";
            this.useMemoryLabel.Text   = $"사용 메모리 : {totalMemoryMB - freeMemoryMB}";

            this.totalMemoryProgressBar.Value = totalMemoryMB;
            this.freeMemoryProgressBar.Value  = freeMemoryMB;
            this.useMemoryProgressBar.Value   = (totalMemoryMB - freeMemoryMB);
        }

        #endregion
    }
}