C# 如何从非表单应用程序制作 BalloonToolTip

Question

好的，所以我正在尝试制作一个简单的屏幕截图程序，我需要该程序在拍摄屏幕截图时以及程序在启动时设置为运行时显示 BalloonToolTip。下面的代码展示了我的整个程序，没有表格，也没有设计器。只是运行来自 Program.cs 的程序，它不是控制台应用程序。

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Windows;
using FullscreenShot.Properties;
using GlobalHotKey;
using System.Windows.Input;
using System.Timers;
using System.Threading.Tasks;
using Microsoft.Win32;

namespace FullscreenShot
{
class Program
{
    private static NotifyIcon notifyIcon;
    private static HotKeyManager hotKeyManager;

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main()
    {
        System.Windows.Forms.Application.EnableVisualStyles();
        System.Windows.Forms.Application.SetCompatibleTextRenderingDefault(false);
        // We need to dispose here, or the icon will not remove until the 
        // system tray is updated.
        System.Windows.Forms.Application.ApplicationExit += delegate{ notifyIcon.Dispose(); };
        CreateNotifyIcon();
        System.Windows.Forms.Application.Run();
    }

    /// <summary>
    /// Creates the icon that sits in the system tray.
    /// </summary>

    private static void CreateNotifyIcon()
    {
        notifyIcon = new NotifyIcon
        {
            Icon = Resources.AppIcon,
            ContextMenu = GetContextMenu()
        };
        notifyIcon.Visible = true;
/*------------------------------------------------------------*/
        hotKeyManager = new HotKeyManager();//Creates Hotkey manager from GlobalHotKey

        var hotKey = hotKeyManager.Register(Key.F12, ModifierKeys.Control); // Sets Hotkey to Control + F12, ModifierKeys must be pressed first/

        hotKeyManager.KeyPressed += HotKeyManagerPressed; //Creates void for "HotKeyManagerPressed"

        void HotKeyManagerPressed(object sender, KeyPressedEventArgs e) //Checks to see if hotkey is pressed
        {
            if(e.HotKey.Key == Key.F12)

            {
                TakeFullScreenShotAsync();
                BalloonTip();
               // MessageBox.Show("Screenshot Taken");
            }
        }

    }

    /// <summary>
    /// Creates BalloonTip to notify you that your Screenshot was taken.
    /// </summary>
    private static void BalloonTip()
    {
        notifyIcon.Visible = true;
        notifyIcon.Icon = SystemIcons.Information;
        notifyIcon.ShowBalloonTip(740, "Important From Screenshot", "Screenshot Taken", ToolTipIcon.Info);
    }

    private static void BalloonTip2()
    {
        notifyIcon.Visible = true;
        notifyIcon.Icon = SystemIcons.Information;
        notifyIcon.ShowBalloonTip(1, "Important From Screenshot", "Screenshot will now begin on startup", ToolTipIcon.Info);
    }

    ///<summary>
    ///Creates the contextmenu for the Icon
    ///<summary>
    private static ContextMenu GetContextMenu()
    {
        string myPath = System.AppDomain.CurrentDomain.BaseDirectory.ToString();
        System.Diagnostics.Process prc = new System.Diagnostics.Process();
        prc.StartInfo.FileName = myPath;
        ContextMenu menu = new ContextMenu();
        menu.MenuItems.Add("Take Screenshot (Ctrl+F12)", delegate { TakeFullScreenShotAsync(); });
        menu.MenuItems.Add("Open Folder", delegate { prc.Start(); });
        menu.MenuItems.Add("Exit", delegate { System.Windows.Forms.Application.Exit(); });
        menu.MenuItems.Add("Run On Startup", delegate { RunOnStartup(); });

        return menu;

    }

    /// <summary>
    /// Simple function that finds Registry and adds the Application to the startup
    /// </summary>
    private static void RunOnStartup()
    {
        RegistryKey reg = Registry.CurrentUser.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Run", true);
        reg.SetValue("MyApp", Application.ExecutablePath.ToString());
        BalloonTip2();
        MessageBox.Show("The Program will now start on startup");
    }


    /// <summary>
    /// Gets points for the screen uses those points to build a bitmap of the screen and saves it.
    /// </summary>
    private static async void TakeFullScreenShotAsync()
    {
        await Task.Delay(750);//Allows task to be waited on for .75ths of a second. Time In ms.


        int width = Screen.PrimaryScreen.Bounds.Width;
        int height = Screen.PrimaryScreen.Bounds.Height;

        using (Bitmap screenshot = new Bitmap(width, height, PixelFormat.Format32bppArgb))
        {
            using (Graphics graphics = Graphics.FromImage(screenshot))
            {
                System.Drawing.Point origin = new System.Drawing.Point(0, 0);
                System.Drawing.Size screenSize = Screen.PrimaryScreen.Bounds.Size;
                //Copy Entire screen to entire bitmap.
                graphics.CopyFromScreen(origin, origin, screenSize);
            }

            //Check to see if the file exists, if it does, append.
            int append = 1;

            while (File.Exists($"Screenshot{append}.jpg"))
                append++;

            string fileName = $"Screenshot{append}.jpg";
            screenshot.Save(fileName, ImageFormat.Jpeg);
        }
    }
}
}

现在你可能不需要所有这些，但我想确保我没有在这个过程中搞砸任何事情，是的，我的资源正在被发现并且图标已设置，我只是不明白为什么这不起作用。

Answer 1

您尚未在 TakeFullScreenShotAsync() 方法中调用 BalloonTip() 方法。

    private static async void TakeFullScreenShotAsync()
    {
        await Task.Delay(750);//Allows task to be waited on for .75ths of a second. Time In ms.


        int width = Screen.PrimaryScreen.Bounds.Width;
        int height = Screen.PrimaryScreen.Bounds.Height;

        using (Bitmap screenshot = new Bitmap(width, height, PixelFormat.Format32bppArgb))
        {
            using (Graphics graphics = Graphics.FromImage(screenshot))
            {
                System.Drawing.Point origin = new System.Drawing.Point(0, 0);
                System.Drawing.Size screenSize = Screen.PrimaryScreen.Bounds.Size;
                //Copy Entire screen to entire bitmap.
                graphics.CopyFromScreen(origin, origin, screenSize);
            }

            //Check to see if the file exists, if it does, append.
            int append = 1;

            while (File.Exists($"Screenshot{append}.jpg"))
                append++;

            string fileName = $"Screenshot{append}.jpg";
            screenshot.Save(fileName, ImageFormat.Jpeg);

            // Call the Show Tip Message Here...
            BalloonTip();
        }
    }

行：hotKeyManager.Register(...) 抛出一个错误，因为我已经注册了一个热键，因此我将其更改为对我有用的其他东西。

Answer 2

我刚刚复制了你所有的代码有一个小问题，不确定是你复制粘贴错误你需要把 HotKeyManagerPressed 放在外面。它对我有用，我看到了我的通知，它是 windows 10 通知。

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Windows;
using GlobalHotKey;
using System.Windows.Input;
using System.Timers;
using System.Threading.Tasks;
using Microsoft.Win32;
using FullScreenShot.Properties;

namespace FullScreenShot
{
    class Program
    {
        private static NotifyIcon notifyIcon;
        private static HotKeyManager hotKeyManager;

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            System.Windows.Forms.Application.EnableVisualStyles();
            System.Windows.Forms.Application.SetCompatibleTextRenderingDefault(false);
            // We need to dispose here, or the icon will not remove until the 
            // system tray is updated.
            System.Windows.Forms.Application.ApplicationExit += delegate { notifyIcon.Dispose(); };
            CreateNotifyIcon();
            System.Windows.Forms.Application.Run();
        }

        /// <summary>
        /// Creates the icon that sits in the system tray.
        /// </summary>

        private static void CreateNotifyIcon()
        {
            notifyIcon = new NotifyIcon
            {
                Icon = Resources.AppIcon,
                ContextMenu = GetContextMenu()
            };
            notifyIcon.Visible = true;
            /*------------------------------------------------------------*/
            hotKeyManager = new HotKeyManager();//Creates Hotkey manager from GlobalHotKey

            var hotKey = hotKeyManager.Register(Key.F12, ModifierKeys.Control); // Sets Hotkey to Control + F12, ModifierKeys must be pressed first/

            hotKeyManager.KeyPressed += HotKeyManagerPressed; //Creates void for "HotKeyManagerPressed"



    }
      private static void HotKeyManagerPressed(object sender, KeyPressedEventArgs e) //Checks to see if hotkey is pressed
        {
            if (e.HotKey.Key == Key.F12)

            {
                TakeFullScreenShotAsync();
                BalloonTip();
                // MessageBox.Show("Screenshot Taken");
            }
        }
        /// <summary>
        /// Creates BalloonTip to notify you that your Screenshot was taken.
        /// </summary>
        private static void BalloonTip()
        {
            notifyIcon.Visible = true;
            notifyIcon.Icon = SystemIcons.Information;
            notifyIcon.ShowBalloonTip(740, "Important From Screenshot", "Screenshot Taken", ToolTipIcon.Info);
        }

        private static void BalloonTip2()
        {
            notifyIcon.Visible = true;
            notifyIcon.Icon = SystemIcons.Information;
            notifyIcon.ShowBalloonTip(1, "Important From Screenshot", "Screenshot will now begin on startup", ToolTipIcon.Info);
        }

        ///<summary>
        ///Creates the contextmenu for the Icon
        ///<summary>
        private static ContextMenu GetContextMenu()
        {
            string myPath = System.AppDomain.CurrentDomain.BaseDirectory.ToString();
            System.Diagnostics.Process prc = new System.Diagnostics.Process();
            prc.StartInfo.FileName = myPath;
            ContextMenu menu = new ContextMenu();
            menu.MenuItems.Add("Take Screenshot (Ctrl+F12)", delegate { TakeFullScreenShotAsync(); });
            menu.MenuItems.Add("Open Folder", delegate { prc.Start(); });
            menu.MenuItems.Add("Exit", delegate { System.Windows.Forms.Application.Exit(); });
            menu.MenuItems.Add("Run On Startup", delegate { RunOnStartup(); });

            return menu;

        }

        /// <summary>
        /// Simple function that finds Registry and adds the Application to the startup
        /// </summary>
        private static void RunOnStartup()
        {
            RegistryKey reg = Registry.CurrentUser.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Run", true);
            reg.SetValue("MyApp", Application.ExecutablePath.ToString());
            BalloonTip2();
            MessageBox.Show("The Program will now start on startup");
        }


        /// <summary>
        /// Gets points for the screen uses those points to build a bitmap of the screen and saves it.
        /// </summary>
        private static async void TakeFullScreenShotAsync()
        {
            await Task.Delay(750);//Allows task to be waited on for .75ths of a second. Time In ms.


            int width = Screen.PrimaryScreen.Bounds.Width;
            int height = Screen.PrimaryScreen.Bounds.Height;

            using (Bitmap screenshot = new Bitmap(width, height, PixelFormat.Format32bppArgb))
            {
                using (Graphics graphics = Graphics.FromImage(screenshot))
                {
                    System.Drawing.Point origin = new System.Drawing.Point(0, 0);
                    System.Drawing.Size screenSize = Screen.PrimaryScreen.Bounds.Size;
                    //Copy Entire screen to entire bitmap.
                    graphics.CopyFromScreen(origin, origin, screenSize);
                }

                //Check to see if the file exists, if it does, append.
                int append = 1;

                while (File.Exists($"Screenshot{append}.jpg"))
                    append++;

                string fileName = $"Screenshot{append}.jpg";
                screenshot.Save(fileName, ImageFormat.Jpeg);
            }
        }
    }
}

查看图片

C# 如何从非表单应用程序制作 BalloonToolTip

C# How to Make a BalloonToolTip from a Non-Form Application

c#

screenshot

balloon-tip