[C#/WINFORM] 특정 화면에서 전경 윈도우의 전체 화면 모드 여부 구하기

TestProject.zip

0.01MB

▶ RECT.cs

using System.Runtime.InteropServices;

namespace TestProject
{
    /// <summary>
    /// 사각형
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct RECT
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region Field

        /// <summary>
        /// 왼쪽
        /// </summary>
        public int Left;

        /// <summary>
        /// 위쪽
        /// </summary>
        public int Top;

        /// <summary>
        /// 오른쪽
        /// </summary>
        public int Right;

        /// <summary>
        /// 아래쪽
        /// </summary>
        public int Bottom;

        #endregion
    }
}

 

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▶ WindowHelper.cs

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace TestProject
{
    /// <summary>
    /// 윈도우 헬퍼
    /// </summary>
    public static class WindowHelper
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Import
        ////////////////////////////////////////////////////////////////////////////////////////// Static
        //////////////////////////////////////////////////////////////////////////////// Private

        #region 윈도우 사각형 구하기 - GetWindowRect(windowHandle, rectangle)

        /// <summary>
        /// 윈도우 사각형 구하기
        /// </summary>
        /// <param name="windowHandle">윈도우 핸들</param>
        /// <param name="rectangle">사각형</param>
        /// <returns>처리 결과</returns>
        [DllImport("user32.dll")]
        private static extern bool GetWindowRect(HandleRef windowHandle, [In, Out] ref RECT rectangle);

        #endregion
        #region 전경 윈도우 구하기 - GetForegroundWindow()

        /// <summary>
        /// 전경 윈도우 구하기
        /// </summary>
        /// <returns>전경 윈도우 핸들</returns>
        [DllImport("user32.dll")]
        private static extern IntPtr GetForegroundWindow();

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Static
        //////////////////////////////////////////////////////////////////////////////// Public

        #region 전경 전체 화면 여부 구하기 - IsForegroundFullScreen(screen)

        /// <summary>
        /// 전경 전체 화면 여부 구하기
        /// </summary>
        /// <param name="screen">화면</param>
        /// <returns>전경 전체 화면 여부</returns>
        public static bool IsForegroundFullScreen(Screen screen)
        {
            if(screen == null)
            {
                screen = Screen.PrimaryScreen;
            }

            RECT rectangle = new RECT();

            GetWindowRect(new HandleRef(null, GetForegroundWindow()), ref rectangle);

            return new Rectangle
            (
                rectangle.Left,
                rectangle.Top,
                rectangle.Right  - rectangle.Left,
                rectangle.Bottom - rectangle.Top
            ).Contains(screen.Bounds);
        }

        #endregion
        #region 전경 전체 화면 여부 구하기 - IsForegroundFullScreen()

        /// <summary>
        /// 전경 전체 화면 여부 구하기
        /// </summary>
        /// <returns>전경 전체 화면 여부</returns>
        public static bool IsForegroundFullScreen()
        {
            return IsForegroundFullScreen(null);
        }

        #endregion
    }
}

 

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▶ MainForm.cs

using System;
using System.Threading;
using System.Windows.Forms;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : Form
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

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

            this.testButton.Click += testButton_Click;
        }

        #endregion

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

        #region 테스트 버튼 클릭시 처리하기 - testButton_Click(sender, e)

        /// <summary>
        /// 테스트 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void testButton_Click(object sender, EventArgs e)
        {
            Thread.Sleep(5000);

            bool result = WindowHelper.IsForegroundFullScreen(Screen.AllScreens[0]);

            MessageBox.Show($"첫번째 모니터에서 전경 윈도우의 전체 화면 모드 여부 : {result}");
        }

        #endregion
    }
}