C# 从桌面右下角显示 Popup 窗口提醒
上图演示
private void display_Click(object sender, EventArgs e) { Frm_Info.Instance().ShowForm();//显示窗体 } private void close_Click(object sender, EventArgs e) { Frm_Info.Instance().CloseForm();//隐藏窗体 }
#region 显示窗体 public void ShowForm() { switch (this.FormNowState) { case FormState.Hide: if (this.Height <= this.Rect.Height - 192)//当窗体没有完全显示时 this.SetBounds(Rect.X, this.Top - 192, Rect.Width, this.Height + 192);//使窗体不断上移 else { this.SetBounds(Rect.X,Rect.Y,Rect.Width,Rect.Height);//设置当前窗体的边界 } AnimateWindow(this.Handle, 800, AW_SLIDE + AW_VER_NEGATIVE);//动态显示本窗体 break; } } #endregion #region 关闭窗体 public void CloseForm() { AnimateWindow(this.Handle,800,AW_SLIDE + AW_VER_POSITIVE + AW_HIDE);//动画隐藏窗体 this.FormNowState = FormState.Hide;//设定当前窗体的状态为隐藏 } #endregion
Popup 窗体
public partial class Frm_Info :System.Windows.Forms.Form { #region 声明的变量 private System.Drawing.Rectangle Rect;//定义一个存储矩形框的数组 private FormState InfoStyle = FormState.Hide;//定义变量为隐藏 static private Frm_Info dropDownForm = new Frm_Info();//实例化当前窗体 private static int AW_HIDE = 0x00010000; //该变量表示动画隐藏窗体 private static int AW_SLIDE = 0x00040000;//该变量表示出现滑行效果的窗体 private static int AW_VER_NEGATIVE = 0x00000008;//该变量表示从下向上开屏 private static int AW_VER_POSITIVE = 0x00000004;//该变量表示从上向下开屏 #endregion #region 该窗体的构造方法 public Frm_Info() { InitializeComponent(); //初始化工作区大小 System.Drawing.Rectangle rect = System.Windows.Forms.Screen.GetWorkingArea(this);//实例化一个当前窗口的对象 this.Rect = new System.Drawing.Rectangle(rect.Right - this.Width - 1,rect.Bottom - this.Height - 1,this.Width,this.Height);//为实例化的对象创建工作区域 } #endregion #region 调用API函数显示窗体 [DllImportAttribute("user32.dll")] private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags); #endregion #region 鼠标控制图片的变化 private void pictureBox1_MouseEnter(object sender, EventArgs e) { pictureBox1.Image = imageList1.Images[1];//设定当鼠标进入PictureBox控件时PictureBox控件的图片 } private void pictureBox1_MouseLeave(object sender, EventArgs e) { pictureBox1.Image = imageList1.Images[0]; //设定当鼠标离开PictureBox控件时PictureBox控件的图片 } #endregion #region 定义标识窗体移动状态的枚举值 protected enum FormState { Hide=0,//隐藏窗体 Display=1,//显示窗体 Displaying=2,//显示窗体中 Hiding=3 //隐藏窗体中 } #endregion #region 用属性标识当前状态 protected FormState FormNowState { get { return this.InfoStyle; } //返回窗体的当前状态 set { this.InfoStyle = value; } //设定窗体当前状态的值 } #endregion #region 显示窗体 public void ShowForm() { switch (this.FormNowState) { case FormState.Hide: if (this.Height <= this.Rect.Height - 192)//当窗体没有完全显示时 this.SetBounds(Rect.X, this.Top - 192, Rect.Width, this.Height + 192);//使窗体不断上移 else { this.SetBounds(Rect.X,Rect.Y,Rect.Width,Rect.Height);//设置当前窗体的边界 } AnimateWindow(this.Handle, 800, AW_SLIDE + AW_VER_NEGATIVE);//动态显示本窗体 break; } } #endregion #region 关闭窗体 public void CloseForm() { AnimateWindow(this.Handle,800,AW_SLIDE + AW_VER_POSITIVE + AW_HIDE);//动画隐藏窗体 this.FormNowState = FormState.Hide;//设定当前窗体的状态为隐藏 } #endregion #region 返回当前窗体的实例化对象 static public Frm_Info Instance() { return dropDownForm; //返回当前窗体的实例化对象 } #endregion }
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本文来自博客园,作者:明志德道,转载请注明原文链接:https://www.cnblogs.com/for-easy-fast/p/16485622.html