前言
消息通知在應(yīng)用程序中，是一種非常有用的功能，實(shí)現(xiàn)對(duì)一些重要信息、提醒或警告及時(shí)向用戶展示。我們?cè)谑褂密浖r(shí)，通常會(huì)收到一種從桌面右下角彈出的（提示信息或廣告）信息框。本文將介紹使用 C# 實(shí)現(xiàn)此種方式的信息通知窗口。
實(shí)現(xiàn)
1、使用 API 的 AnimateWindow 函數(shù)
using System;using System.Runtime.InteropServices;
namespace Fountain.WinForm.MessageBoxDemo{ public class Win32 { /// <summary> /// 自左向右顯示窗口,該標(biāo)記可以在遷移轉(zhuǎn)變動(dòng)畫和滑動(dòng)動(dòng)畫中應(yīng)用。應(yīng)用AW_CENTER標(biāo)記時(shí)忽視該標(biāo)記 /// </summary> public const int AW_HOR_POSITIVE = 0x0001; /// <summary> /// 自右向左顯示窗口,該標(biāo)記可以在遷移轉(zhuǎn)變動(dòng)畫和滑動(dòng)動(dòng)畫中應(yīng)用。應(yīng)用AW_CENTER標(biāo)記時(shí)忽視該標(biāo)記 /// </summary> public const int AW_HOR_NEGATIVE = 0x0002; /// <summary> /// 自頂向下顯示窗口,該標(biāo)記可以在遷移轉(zhuǎn)變動(dòng)畫和滑動(dòng)動(dòng)畫中應(yīng)用。應(yīng)用AW_CENTER標(biāo)記時(shí)忽視該標(biāo)記 /// </summary> public const int AW_VER_POSITIVE = 0x0004; /// <summary> /// 自下向上顯示窗口,該標(biāo)記可以在遷移轉(zhuǎn)變動(dòng)畫和滑動(dòng)動(dòng)畫中應(yīng)用。應(yīng)用AW_CENTER標(biāo)記時(shí)忽視該標(biāo)記該標(biāo)記 /// </summary> public const int AW_VER_NEGATIVE = 0x0008; /// <summary> /// 若應(yīng)用了AW_HIDE標(biāo)記,則使窗口向內(nèi)重疊;不然向外擴(kuò)大 /// </summary> public const int AW_CENTER = 0x0010; /// <summary> /// 隱蔽窗口 /// </summary> public const int AW_HIDE = 0x10000; /// <summary> /// 激活窗口,在應(yīng)用了AW_HIDE標(biāo)記后不要應(yīng)用這個(gè)標(biāo)記 /// </summary> public const int AW_ACTIVE = 0x20000; /// <summary> /// 滑動(dòng)類型動(dòng)畫結(jié)果,默認(rèn)為遷移轉(zhuǎn)變動(dòng)畫類型,當(dāng)應(yīng)用AW_CENTER標(biāo)記時(shí),這個(gè)標(biāo)記就被忽視 /// </summary> public const int AW_SLIDE = 0x40000; /// <summary> /// 淡入淡出結(jié)果 /// </summary> public const int AW_BLEND = 0x80000; /// <summary> /// 窗體動(dòng)畫函數(shù) /// </summary> /// <param name="hwnd"></param> /// <param name="dwTime"></param> /// <param name="dwFlags"></param> /// <returns></returns> [DllImport("user32")] public static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags); }}
using System;using System.Drawing;using System.Windows.Forms;
namespace Fountain.WinForm.MessageBoxDemo{ public partial class FormMessageBox : Form { /// <summary> /// 關(guān)閉窗口的定時(shí)器 /// </summary> private Timer formCloseTime = new Timer(); /// <summary> /// 構(gòu)造方法 /// </summary> public FormMessageBox() { InitializeComponent(); } /// <summary> /// 窗體加載 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormMessageBox_Load(object sender, EventArgs e) { // 手動(dòng)設(shè)置起始位置 this.StartPosition = FormStartPosition.Manual; // 計(jì)算屏幕尺寸并將窗體放置在右下角 Rectangle screenRectangle = Screen.PrimaryScreen.WorkingArea; int x = screenRectangle.Width - this.Width; int y = screenRectangle.Height - this.Height; this.Location = new Point(x, y); this.TopMost = true;
Win32.AnimateWindow(this.Handle, 1000, Win32.AW_SLIDE + Win32.AW_VER_NEGATIVE);
this.ShowInTaskbar = false;
formCloseTime.Interval = 5000; formCloseTime.Tick += new EventHandler(formCloseTime_Tick); formCloseTime.Start(); } /// <summary> /// 關(guān)閉窗口的定時(shí)器響應(yīng)事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void formCloseTime_Tick(object sender, EventArgs e) { formCloseTime.Stop(); this.Close(); } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormMessageBox_FormClosed(object sender, FormClosedEventArgs e) { formCloseTime.Stop(); formCloseTime.Dispose(); Win32.AnimateWindow(this.Handle, 1000, Win32.AW_SLIDE + Win32.AW_VER_POSITIVE + Win32.AW_HIDE); } }}
FormMessageBox formMessageBox = new FormMessageBox();formMessageBox.Show();
2、控制窗體顯示
using System;using System.Drawing;using System.Threading;using System.Windows.Forms;
namespace Fountain.WinForm.MessageBoxDemo{ public partial class FormNotifyBox : Form { /// <summary> /// 關(guān)閉窗口的定時(shí)器 /// </summary> private System.Windows.Forms.Timer formCloseTime = new System.Windows.Forms.Timer(); /// <summary> /// /// </summary> private Point formPoint; /// <summary> /// /// </summary> public FormNotifyBox() { InitializeComponent(); this.formPoint = new Point(Screen.PrimaryScreen.WorkingArea.Width - this.Width, Screen.PrimaryScreen.WorkingArea.Height); // 設(shè)置窗體在屏幕右下角顯示 this.Location = formPoint; } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormNotifyBox_Load(object sender, EventArgs e) { try { formCloseTime.Interval = 5000; formCloseTime.Tick += new EventHandler(formCloseTime_Tick); formCloseTime.Start(); this.TopMost = false; this.BringToFront(); this.TopMost = true; this.PointToClient(this.formPoint); this.Location = this.formPoint; this.Show(); for (int i = 0; i < this.Height; i++) { this.Location = new Point(formPoint.X, formPoint.Y - i); // 消息框彈出速度，數(shù)值越大越慢 Thread.Sleep(1); } } catch (Exception exception) { } } /// <summary> /// 關(guān)閉窗口的定時(shí)器響應(yīng)事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void formCloseTime_Tick(object sender, EventArgs e) { formCloseTime.Enabled = false; for (int i = 0; i <= this.Height; i++) { //彈出框向下移動(dòng)消失 Point point = new Point(this.Location.X, this.Location.Y + i); this.PointToScreen(point); //即時(shí)轉(zhuǎn)換成屏幕坐標(biāo) this.Location = point; //下降速度調(diào)節(jié)，數(shù)字越小消失的速度越快，建議不大于10 Thread.Sleep(8); } this.Close(); this.Dispose(); } }}
FormNotifyBox notifyForm = new FormNotifyBox();notifyForm.Show();
小結(jié)
以上通過二個(gè) WinForm 應(yīng)用示例，對(duì) C# 如何實(shí)現(xiàn)消息提示進(jìn)行了介紹。希望對(duì)有需要的伙伴能提供一些幫助，如需在WPF應(yīng)用程序中實(shí)現(xiàn)，也可參考。
該文章在 2024/7/3 9:23:27 編輯過
400 186 1886
