最近做订单提醒需要在屏幕右下角滚动出一个类似QQ，MSN的消息框，找了N久，终于找到了一个满意的，故贴出来以防以后要用时又找不到。
这是在主窗体中调用的内容：（先要声明弹出窗体为nw）
nw = new NotifyWindow("标题", "内容");
nw.TitleClicked += new System.EventHandler(titleClick);
nw.TextClicked += new System.EventHandler(textClick);
nw.SetDimensions(300,150);//这里是设置窗口的宽和高度
nw.Notify();
同时应该定义两个方法来接收窗口中返回的事件：
protected void titleClick(object sender, System.EventArgs e)
{
MessageBox.Show("Title text clicked");
}
protected void textClick(object sender, System.EventArgs e)
{
MessageBox.Show("Text clicked");
}
下面则是小窗口类，新建个窗口然后粘贴下面的全部代码即可。
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Reflection;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace TaskbarNotifierDemo
{
/// <summary>
/// Display An MSN-Messenger-Style NotifyWindow.
/// </summary>
public class NotifyWindow : System.Windows.Forms.Form
{
#region Public Variables
/// <summary>
/// Gets or sets the title text to be displayed in the NotifyWindow.
/// </summary>
public string Title;
/// <summary>
/// Gets or sets the Font used for the title text.
/// </summary>
public System.Drawing.Font TitleFont;
/// <summary>
/// Gets or sets the Font used when the mouse hovers over the main body of text.
/// </summary>
public System.Drawing.Font HoverFont;
/// <summary>
/// Gets or sets the Font used when the mouse hovers over the title text.
/// </summary>
public System.Drawing.Font TitleHoverFont;
/// <summary>
/// Gets or sets the style used when drawing the background of the NotifyWindow.
/// </summary>
public BackgroundStyles BackgroundStyle;
/// <summary>
/// Gets or sets the Blend used when drawing a gradient background for the NotifyWindow.
/// </summary>
public System.Drawing.Drawing2D.Blend Blend;
/// <summary>
/// Gets or sets the StringFormat used when drawing text in the NotifyWindow.
/// </summary>
public System.Drawing.StringFormat StringFormat;
/// <summary>
/// Gets or sets a value specifiying whether or not the window should continue to be displayed if the mouse cursor is inside the bounds
/// of the NotifyWindow.
/// </summary>
public bool WaitOnMouseOver;
/// <summary>
/// An EventHandler called when the NotifyWindow main text is clicked.
/// </summary>
public event System.EventHandler TextClicked;
/// <summary>
/// An EventHandler called when the NotifyWindow title text is clicked.
/// </summary>
public event System.EventHandler TitleClicked;
/// <summary>
/// Gets or sets the color of the title text.
/// </summary>
public System.Drawing.Color TitleColor;
/// <summary>
/// Gets or sets the color of the NotifyWindow main text.
/// </summary>
public System.Drawing.Color TextColor;
/// <summary>
/// Gets or sets the gradient color which will be blended in drawing the background.
/// </summary>
public System.Drawing.Color GradientColor;
/// <summary>
/// Gets or sets the color of text when the user clicks on it.
/// </summary>
public System.Drawing.Color PressedColor;
/// <summary>
/// Gets or sets the amount of milliseconds to display the NotifyWindow for.
/// </summary>
public int WaitTime;
/// <summary>
/// Gets or sets the full height of the NotifyWindow, used after the opening animation has been completed.
/// </summary>
public int ActualHeight;
/// <summary>
/// Gets or sets the full width of the NotifyWindow.
/// </summary>
public int ActualWidth;
public enum BackgroundStyles { BackwardDiagonalGradient, ForwardDiagonalGradient, HorizontalGradient, VerticalGradient, Solid };
public enum ClockStates { Opening, Closing, Showing, None };
public ClockStates ClockState;
#endregion
#region Protected Variables
protected bool closePressed = false, textPressed = false, titlePressed = false, closeHot = false, textHot = false, titleHot = false;
protected Rectangle rClose, rText, rTitle, rDisplay, rScreen, rGlobClose, rGlobText, rGlobTitle, rGlobDisplay;
protected System.Windows.Forms.Timer viewClock;
#endregion
#region Constructor
/// <param name="title">Title text displayed in the NotifyWindow</param>
/// <param name="text">Main text displayedin the NotifyWindow</param>
public NotifyWindow (string title, string text) : this() { Title = title; Text = text; }
/// <param name="text">Text displayed in the NotifyWindow</param>
public NotifyWindow (string text) : this() { Text = text; }
public NotifyWindow()
{
SetStyle (ControlStyles.UserMouse, true);
SetStyle (ControlStyles.UserPaint, true);
SetStyle (ControlStyles.AllPaintingInWmPaint, true); // WmPaint calls OnPaint and OnPaintBackground
SetStyle (ControlStyles.DoubleBuffer, true);
ShowInTaskbar = false;
FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
StartPosition = System.Windows.Forms.FormStartPosition.Manual;
// Default values
BackgroundStyle = BackgroundStyles.VerticalGradient;
ClockState = ClockStates.None;
BackColor = Color.SteelBlue;
GradientColor = Color.WhiteSmoke;
PressedColor = Color.Gray;
TitleColor = SystemColors.ControlText;
TextColor = SystemColors.ControlText;
WaitOnMouseOver = true;
ActualWidth = 130;
ActualHeight = 110;
WaitTime = 1000; //这里是设置窗口停靠的时间（毫秒）
}
#endregion
#region Public Methods
/// <summary>
/// Sets the width and height of the NotifyWindow.
/// </summary>
public void SetDimensions (int width, int height)
{
ActualWidth = width;
ActualHeight = height;
}
/// <summary>
/// Displays the NotifyWindow.
/// </summary>
public void Notify()
{
if (Text == null || Text.Length < 1)
throw new System.Exception ("You must set NotifyWindow.Text before calling Notify()");
Width = ActualWidth;
rScreen = Screen.GetWorkingArea (Screen.PrimaryScreen.Bounds);
Height = 0;
Top = rScreen.Bottom;
Left = rScreen.Width - Width - 11;
if (HoverFont == null)
HoverFont = new Font (Font, Font.Style | FontStyle.Underline);
if (TitleFont == null)
TitleFont = Font;
if (TitleHoverFont == null)
TitleHoverFont = new Font (TitleFont, TitleFont.Style | FontStyle.Underline);
if (this.StringFormat == null)
{
this.StringFormat = new StringFormat();
this.StringFormat.Alignment = StringAlignment.Center;
this.StringFormat.LineAlignment = StringAlignment.Center;
this.StringFormat.Trimming = StringTrimming.EllipsisWord;
}
rDisplay = new Rectangle (0, 0, Width, ActualHeight);
rClose = new Rectangle (Width - 21, 10, 13, 13);
int offset;
if (Title != null)
{
using (Graphics fx = CreateGraphics())
{
SizeF sz = fx.MeasureString (Title, TitleFont, ActualWidth - rClose.Width - 22, this.StringFormat);
rTitle = new Rectangle (11, 12, (int) Math.Ceiling (sz.Width), (int) Math.Ceiling (sz.Height));
offset = (int) Math.Max (Math.Ceiling (sz.Height + rTitle.Top + 2), rClose.Bottom + 5);
}
}
else
{
offset = rClose.Bottom + 1;
rTitle = new Rectangle (-1, -1, 1, 1);
}
rText = new Rectangle (11, offset, ActualWidth - 22, ActualHeight - (int)(offset * 1.5));
// rGlob* are Rectangle's Offset'ed to their actual position on the screen, for use with Cursor.Position.
rGlobClose = rClose;
rGlobClose.Offset (Left, rScreen.Bottom - ActualHeight);
rGlobText = rText;
rGlobText.Offset (Left, rScreen.Bottom - ActualHeight);
rGlobTitle = rTitle;
if (Title != null)
rGlobTitle.Offset (Left, rScreen.Bottom - ActualHeight);
rGlobDisplay = rDisplay;
rGlobDisplay.Offset (Left, rScreen.Bottom - ActualHeight);
rGlobClose = rClose;
rGlobClose.Offset (Left, rScreen.Bottom - ActualHeight);
rGlobDisplay = rDisplay;
rGlobDisplay.Offset (Left, rScreen.Bottom - ActualHeight);
// Use unmanaged ShowWindow() and SetWindowPos() instead of the managed Show() to display the window - this method will display
// the window TopMost, but without stealing focus (namely the SW_SHOWNOACTIVATE and SWP_NOACTIVATE flags)
ShowWindow (Handle, SW_SHOWNOACTIVATE);
SetWindowPos (Handle, HWND_TOPMOST, rScreen.Width - ActualWidth - 11, rScreen.Bottom, ActualWidth, 0, SWP_NOACTIVATE);
viewClock = new System.Windows.Forms.Timer();
viewClock.Tick += new System.EventHandler (viewTimer);
viewClock.Interval = 1;
viewClock.Start();
ClockState = ClockStates.Opening;
}
#endregion
#region Drawing
protected override void OnPaint (System.Windows.Forms.PaintEventArgs e)
{
// Draw the close button and text.
drawCloseButton (e.Graphics);
Font useFont; Color useColor;
if (Title != null)
{
if (titleHot)
useFont = TitleHoverFont;
else
useFont = TitleFont;
if (titlePressed)
useColor = PressedColor;
else
useColor = TitleColor;
using (SolidBrush sb = new SolidBrush (useColor))
e.Graphics.DrawString (Title, useFont, sb, rTitle, this.StringFormat);
}
if (textHot)
useFont = HoverFont;
else
useFont = Font;
if (textPressed)
useColor = PressedColor;
else
useColor = TextColor;
using (SolidBrush sb = new SolidBrush (useColor))
e.Graphics.DrawString (Text, useFont, sb, rText, this.StringFormat);
}
protected override void OnPaintBackground (System.Windows.Forms.PaintEventArgs e)
{
// First paint the background
if (BackgroundStyle == BackgroundStyles.Solid)
{
using (SolidBrush sb = new SolidBrush (BackColor))
e.Graphics.FillRectangle (sb, rDisplay);
}
else
{
LinearGradientMode lgm;
switch (BackgroundStyle)
{
case BackgroundStyles.BackwardDiagonalGradient:
lgm = LinearGradientMode.BackwardDiagonal;
break;
case BackgroundStyles.ForwardDiagonalGradient:
lgm = LinearGradientMode.ForwardDiagonal;
break;
case BackgroundStyles.HorizontalGradient:
lgm = LinearGradientMode.Horizontal;
break;
default:
case BackgroundStyles.VerticalGradient:
lgm = LinearGradientMode.Vertical;
break;
}
using (LinearGradientBrush lgb = new LinearGradientBrush (rDisplay, GradientColor, BackColor, lgm))
{
if (this.Blend != null)
lgb.Blend = this.Blend;
e.Graphics.FillRectangle (lgb, rDisplay);
}
}
// Next draw borders...
drawBorder (e.Graphics);
}
protected virtual void drawBorder (Graphics fx)
{
fx.DrawRectangle (Pens.Silver, 2, 2, Width - 4, ActualHeight - 4);
// Top border
fx.DrawLine (Pens.Silver, 0, 0, Width, 0);
fx.DrawLine (Pens.White, 0, 1, Width, 1);
fx.DrawLine (Pens.DarkGray, 3, 3, Width - 4, 3);
fx.DrawLine (Pens.DimGray, 4, 4, Width - 5, 4);
// Left border
fx.DrawLine (Pens.Silver, 0, 0, 0, ActualHeight);
fx.DrawLine (Pens.White, 1, 1, 1, ActualHeight);
fx.DrawLine (Pens.DarkGray, 3, 3, 3, ActualHeight - 4);
fx.DrawLine (Pens.DimGray, 4, 4, 4, ActualHeight - 5);
// Bottom border
fx.DrawLine (Pens.DarkGray, 1, ActualHeight - 1, Width - 1, ActualHeight - 1);
fx.DrawLine (Pens.White, 3, ActualHeight - 3, Width - 3, ActualHeight - 3);
fx.DrawLine (Pens.Silver, 4, ActualHeight - 4, Width - 4, ActualHeight - 4);
// Right border
fx.DrawLine (Pens.DarkGray, Width - 1, 1, Width - 1, ActualHeight - 1);
fx.DrawLine (Pens.White, Width - 3, 3, Width - 3, ActualHeight - 3);
fx.DrawLine (Pens.Silver, Width - 4, 4, Width - 4, ActualHeight - 4);
}
protected virtual void drawCloseButton (Graphics fx)
{
if (visualStylesEnabled())
drawThemeCloseButton (fx);
else
drawLegacyCloseButton (fx);
}
/// <summary>
/// Draw a Windows XP style close button.
/// </summary>
protected void drawThemeCloseButton (Graphics fx)
{
IntPtr hTheme = OpenThemeData (Handle, "Window");
if (hTheme == IntPtr.Zero)
{
drawLegacyCloseButton (fx);
return;
}
int stateId;
if (closePressed)
stateId = CBS_PUSHED;
else if (closeHot)
stateId = CBS_HOT;
else
stateId = CBS_NORMAL;
RECT reClose = new RECT (rClose);
RECT reClip = reClose; // should fx.VisibleClipBounds be used here?
IntPtr hDC = fx.GetHdc();
DrawThemeBackground (hTheme, hDC, WP_CLOSEBUTTON, stateId, ref reClose, ref reClip);
fx.ReleaseHdc (hDC);
CloseThemeData (hTheme);
}
/// <summary>
/// Draw a Windows 95 style close button.
/// </summary>
protected void drawLegacyCloseButton (Graphics fx)
{
ButtonState bState;
if (closePressed)
bState = ButtonState.Pushed;
else // the Windows 95 theme doesn't have a "hot" button
bState = ButtonState.Normal;
ControlPaint.DrawCaptionButton (fx, rClose, CaptionButton.Close, bState);
}
/// <summary>
/// Determine whether or not XP Visual Styles are active. Compatible with pre-UxTheme.dll versions of Windows.
/// </summary>
protected bool visualStylesEnabled()
{
try
{
if (IsThemeActive() == 1)
return true;
else
return false;
}
catch (System.DllNotFoundException) // pre-XP systems which don't have UxTheme.dll
{
return false;
}
}
#endregion
#region Timers and EventHandlers
public void viewTimer (object sender, System.EventArgs e)
{
switch (ClockState)
{
case ClockStates.Opening:
if (Top - 2 <= rScreen.Height - ActualHeight)
{
Top = rScreen.Height - ActualHeight;
Height = ActualHeight;
ClockState = ClockStates.Showing;
viewClock.Interval = WaitTime;
}
else
{
Top -= 3;
Height += 3;
}
break;
case ClockStates.Showing:
if (!WaitOnMouseOver || !rGlobDisplay.Contains (Cursor.Position))
{
viewClock.Interval = 1;
ClockState = ClockStates.Closing;
}
break;
case ClockStates.Closing:
Top += 3;
Height -= 3;
if (Top >= rScreen.Height)
{
ClockState = ClockStates.None;
viewClock.Stop();
viewClock.Dispose();
Close();
}
break;
}
}
protected override void OnMouseMove (System.Windows.Forms.MouseEventArgs e)
{
if (Title != null && rGlobTitle.Contains (Cursor.Position) && !textPressed && !closePressed)
{
Cursor = Cursors.Hand;
titleHot = true;
textHot = false; closeHot = false;
Invalidate();
}
else if (rGlobText.Contains (Cursor.Position) && !titlePressed && !closePressed)
{
Cursor = Cursors.Hand;
textHot = true;
titleHot = false; closeHot = false;
Invalidate();
}
else if (rGlobClose.Contains (Cursor.Position) && !titlePressed && !textPressed)
{
Cursor = Cursors.Hand;
closeHot = true;
titleHot = false; textHot = false;
Invalidate();
}
else if ((textHot || titleHot || closeHot) && (!titlePressed && !textPressed && !closePressed))
{
Cursor = Cursors.Default;
titleHot = false; textHot = false; closeHot = false;
Invalidate();
}
base.OnMouseMove (e);
}
protected override void OnMouseDown (System.Windows.Forms.MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (rGlobClose.Contains (Cursor.Position))
{
closePressed = true;
closeHot = false;
Invalidate();
}
else if (rGlobText.Contains (Cursor.Position))
{
textPressed = true;
Invalidate();
}
else if (Title != null && rGlobTitle.Contains (Cursor.Position))
{
titlePressed = true;
Invalidate();
}
}
base.OnMouseDown (e);
}
protected override void OnMouseUp (System.Windows.Forms.MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (closePressed)
{
Cursor = Cursors.Default;
closePressed = false;
closeHot = false;
Invalidate();
if (rGlobClose.Contains (Cursor.Position))
Close();
}
else if (textPressed)
{
Cursor = Cursors.Default;
textPressed = false;
textHot = false;
Invalidate();
if (rGlobText.Contains (Cursor.Position))
{
Close();
if (TextClicked != null)
TextClicked (this, new System.EventArgs());
}
}
else if (titlePressed)
{
Cursor = Cursors.Default;
titlePressed = false;
titleHot = false;
Invalidate();
if (rGlobTitle.Contains (Cursor.Position))
{
Close();
if (TitleClicked != null)
TitleClicked (this, new System.EventArgs());
}
}
}
base.OnMouseUp (e);
}
#endregion
#region P/Invoke
// DrawThemeBackground()
protected const Int32 WP_CLOSEBUTTON = 18;
protected const Int32 CBS_NORMAL = 1;
protected const Int32 CBS_HOT = 2;
protected const Int32 CBS_PUSHED = 3;
[StructLayout (LayoutKind.Explicit)]
protected struct RECT
{
[FieldOffset (0)] public Int32 Left;
[FieldOffset (4)] public Int32 Top;
[FieldOffset (8)] public Int32 Right;
[FieldOffset (12)] public Int32 Bottom;
public RECT (System.Drawing.Rectangle bounds)
{
Left = bounds.Left;
Top = bounds.Top;
Right = bounds.Right;
Bottom = bounds.Bottom;
}
}
// SetWindowPos()
protected const Int32 HWND_TOPMOST = -1;
protected const Int32 SWP_NOACTIVATE = 0x0010;
// ShowWindow()
protected const Int32 SW_SHOWNOACTIVATE = 4;
// UxTheme.dll
[DllImport ("UxTheme.dll")]
protected static extern Int32 IsThemeActive();
[DllImport ("UxTheme.dll")]
protected static extern IntPtr OpenThemeData (IntPtr hWnd, [MarshalAs (UnmanagedType.LPTStr)] string classList);
[DllImport ("UxTheme.dll")]
protected static extern void CloseThemeData (IntPtr hTheme);
[DllImport ("UxTheme.dll")]
protected static extern void DrawThemeBackground (IntPtr hTheme, IntPtr hDC, Int32 partId, Int32 stateId, ref RECT rect, ref RECT clipRect);
// user32.dll
[DllImport ("user32.dll")]
protected static extern bool ShowWindow (IntPtr hWnd, Int32 flags);
[DllImport ("user32.dll")]
protected static extern bool SetWindowPos (IntPtr hWnd, Int32 hWndInsertAfter, Int32 X, Int32 Y, Int32 cx, Int32 cy, uint uFlags);
#endregion
}
}
