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[ASP.net教程]【C#】分享一个带附加消息的增强消息框MessageBoxEx


适用于:.net 2.0+的Winform项目

样子:

有损录制+制图的原因不可能原样展示出真实效果,可至文章结尾下载Demo体验。

功能和特点:

  • 相对父窗体居中
  • 可附带附加消息。附加消息可以是string和Exception类型,【详细信息】按钮会根据是否传入附加信息显示和隐藏
  • 展开/收起附加信息时有动画效果。实用为王的你亦可设置EnableAnimate=false关闭动画效果
  • 根据传入的MessageBoxIcon,有不同的声音反馈。这个是NT5的消息框固有的能力,但NT6的消息框却没有声音,猜想可能MS在NT6+有弃用MessageBeep这一API的打算。本消息框通过使用PlaySound API重新让消息有了声音反馈,同时亦提供了EnableSound属性允许你关闭声音反馈
  • 移除了标准MessageBox提供的IWin32Window、MessageBoxOptions和Help相关参数,原因是我用不到,懒得实现^_^
  • 可拖拉改变消息框尺寸,消息文本和附加文本会随窗体大小重排。这是标准消息框未提供的能力。改变尺寸分两种情况有不同的行为:①详细信息未展开时,改变的是主消息区大小;②详细信息展开时,改变的是详细信息区的大小

总体来说,此消息框比较适合用在需要反馈大量消息文本的场合,用标准消息框的话,文本太多可能会使消息框超出屏幕大小,比如codeproject.com上这位老兄举的例子,由于标准消息框不具备改变窗体大小的能力,将导致部分消息无法让用户看到。而就算没有超出屏幕,一下子让用户面对那么多消息文字,体验也不地道。使用本消息框就可以解决此类问题,比如可以将扼要信息显示在主消息区,将大量的明细消息(例如批量处理中的单项处理情况)、次要消息、异常信息等放置在详细信息区,由用户或IT支持人员自己去展开获取这些信息。同时,在没有附加消息的时候,你仍然可以像标准消息框一样使用它,所以,如果你跟我一样不会用到标准消息框的IWin32Window、MessageBoxOptions和Help相关参数的话,基本上你可以在整个项目中全程用此消息框替换掉标准消息框,别忘了相比标准消息框,它还具备了可缩放、NT6下有声音、相对父窗体居中等额外能力。总言之,你值得拥有。至于如果你担心性能问题,这个~我想这么说,我对自己的代码质量还是有点信心的。也希望能得大侠指出槽点,感激!

使用说明:

先看公开成员:

//静态属性MessageBoxEx.EnableAnimateMessageBoxEx.EnableSound//静态方法MessageBoxEx.Show(string, string, string)MessageBoxEx.Show(string, string, string, MessageBoxButtons)MessageBoxEx.Show(string, string, string, MessageBoxButtons, MessageBoxIcon)MessageBoxEx.Show(string, string, string, MessageBoxButtons, MessageBoxIcon, MessageBoxDefaultButton)MessageBoxEx.Show(string, string, Exception)MessageBoxEx.Show(string, string, Exception, MessageBoxButtons)MessageBoxEx.Show(string, string, Exception, MessageBoxButtons, MessageBoxIcon)MessageBoxEx.Show(string, string, Exception, MessageBoxButtons, MessageBoxIcon, MessageBoxDefaultButton)

  • 属性EnableAnimate和EnableSound上面提过,分别是用来启用/关闭动画、声音效果的,默认是都启用。俩属性影响范围是全局的,比如设置EnableAnimate = false后,之后弹出的MessageBoxEx都没有动画效果,直到重新设为true,EnableSound亦然。最佳实践是将它俩与用户偏好设置相关联,允许用户自主控制。
  • 方法则只有一个:Show(),从重载列表你大概都能知道如何使用。其中第3个参数就是附加消息,可接受string和Exception类的实例,其余参数的位置和意义与标准消息框一致。简要示例如下:
    MessageBoxEx.Show("主消息", "标题", "附加消息", MessageBoxButtons.OK, MessageBoxIcon.None, MessageBoxDefaultButton.Button1);MessageBoxEx.Show("主消息", "标题", ex, MessageBoxButtons.OK, MessageBoxIcon.None, MessageBoxDefaultButton.Button1);

  • 前3个参数可以放心为null,内部有处理,后面的枚举你也null不了,如果传入无效枚举值,会抛异常。
  • 只有3个string参数的那个方法,后面俩参数是可选的。所以不讲究消息体验的你仍然可以这样使用:
    MessageBoxEx.Show("阿斯顿发");MessageBoxEx.Show("阿斯顿发", "士大夫");

方案源码:

代码不少,原因自然是有的,有兴趣的童鞋请看后面的实现说明。另外,千万不要认为代码量跟性能有直接关系,有时候更多的代码恰恰是为了提升性能而存在,有时候则是为了健壮性。

using System;using System.ComponentModel;using System.Drawing;using System.IO;using System.Runtime.InteropServices;using System.Threading;using System.Windows.Forms;namespace AhDung.WinForm{  /// <summary>  /// 可以携带详细信息的消息框  /// </summary>  public static class MessageBoxEx  {    //异常消息文本    private const string InvalidButtonExString = "按钮参数不是有效的枚举项!";    private const string InvalidIconExString = "图标参数不是有效的枚举项!";    private const string InvalidDfButtonExString = "默认按钮参数不是有效的枚举项!";    /// <summary>    /// 是否启用动画效果    /// </summary>    public static bool EnableAnimate { get; set; }    /// <summary>    /// 是否启用声音反馈    /// </summary>    public static bool EnableSound { get; set; }    //静态构造    static MessageBoxEx()    {      //默认启用动画+声音      EnableAnimate = true;      EnableSound = true;    }    #region 公开方法    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="attachMessage">附加消息</param>    public static DialogResult Show(string message, string caption = null, string attachMessage = null)    {      return ShowCore(message, caption, attachMessage, MessageBoxButtons.OK, MessageBoxIcon.None, MessageBoxDefaultButton.Button1);    }    /*下面这仨弄成重载而不是可选方法是为了避免不必要的参数检查*/    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="attachMessage">附加消息</param>    /// <param name="buttons">按钮组合</param>    public static DialogResult Show(string message, string caption, string attachMessage, MessageBoxButtons buttons)    {      if (!Enum.IsDefined(typeof(MessageBoxButtons), buttons)) { throw new InvalidEnumArgumentException(InvalidButtonExString); }      return ShowCore(message, caption, attachMessage, buttons, MessageBoxIcon.None, MessageBoxDefaultButton.Button1);    }    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="attachMessage">附加消息</param>    /// <param name="buttons">按钮组合</param>    /// <param name="icon">图标</param>    public static DialogResult Show(string message, string caption, string attachMessage, MessageBoxButtons buttons, MessageBoxIcon icon)    {      if (!Enum.IsDefined(typeof(MessageBoxButtons), buttons)) { throw new InvalidEnumArgumentException(InvalidButtonExString); }      if (!Enum.IsDefined(typeof(MessageBoxIcon), icon)) { throw new InvalidEnumArgumentException(InvalidIconExString); }      return ShowCore(message, caption, attachMessage, buttons, icon, MessageBoxDefaultButton.Button1);    }    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="attachMessage">附加消息</param>    /// <param name="buttons">按钮组合</param>    /// <param name="icon">图标</param>    /// <param name="defaultButton">默认按钮</param>    public static DialogResult Show(string message, string caption, string attachMessage, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton)    {      if (!Enum.IsDefined(typeof(MessageBoxButtons), buttons)) { throw new InvalidEnumArgumentException(InvalidButtonExString); }      if (!Enum.IsDefined(typeof(MessageBoxIcon), icon)) { throw new InvalidEnumArgumentException(InvalidIconExString); }      if (!Enum.IsDefined(typeof(MessageBoxDefaultButton), defaultButton)) { throw new InvalidEnumArgumentException(InvalidDfButtonExString); }      return ShowCore(message, caption, attachMessage, buttons, icon, defaultButton);    }    /********传入异常的重载********/    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="exception">异常实例</param>    public static DialogResult Show(string message, string caption, Exception exception)    {      return Show(message, caption, exception == null ? string.Empty : exception.ToString());    }    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="exception">异常实例</param>    /// <param name="buttons">按钮组合</param>    public static DialogResult Show(string message, string caption, Exception exception, MessageBoxButtons buttons)    {      return Show(message, caption, exception == null ? string.Empty : exception.ToString(), buttons);    }    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="exception">异常实例</param>    /// <param name="buttons">按钮组合</param>    /// <param name="icon">图标</param>    public static DialogResult Show(string message, string caption, Exception exception, MessageBoxButtons buttons, MessageBoxIcon icon)    {      return Show(message, caption, exception == null ? string.Empty : exception.ToString(), buttons, icon);    }    /// <summary>    /// 显示消息框    /// </summary>    /// <param name="message">消息文本</param>    /// <param name="caption">消息框标题</param>    /// <param name="exception">异常实例</param>    /// <param name="buttons">按钮组合</param>    /// <param name="icon">图标</param>    /// <param name="defaultButton">默认按钮</param>    public static DialogResult Show(string message, string caption, Exception exception, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton)    {      return Show(message, caption, exception == null ? string.Empty : exception.ToString(), buttons, icon, defaultButton);    }    #endregion    //内部方法,不检查参数有效性    private static DialogResult ShowCore(string message, string caption, string attachMessage, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton)    {      using (MessageForm f = new MessageForm(message, caption, buttons, icon, defaultButton, attachMessage, EnableAnimate, EnableSound))      {        return f.ShowDialog();      }    }    /*----------------     下面是消息窗体相关     ---------------*/    /// <summary>    /// 消息窗体    /// </summary>    /// <remarks>参数有效性由MessageBoxEx负责</remarks>    private class MessageForm : Form    {      /* todo 存在问题:       * 当消息区文本非常非常多时,且反复进行改变消息框窗口大小、位置、展开收起的操作,那么在某次展开时        详细信息文本框可能会在原位置(即消息区内某rect)瞬闪一下,        原因是文本框控件在显示时总会在原位置WM_NCPAINT + WM_ERASEBKGND一下,暂无解决办法。        实际应用中碰到的几率很小,就算碰到,影响也可以忽略。       */      #region 控件初始化      /// <summary>      /// 必需的设计器变量。      /// </summary>      private System.ComponentModel.IContainer components = null;      /// <summary>      /// 清理所有正在使用的资源。      /// </summary>      /// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param>      protected override void Dispose(bool disposing)      {        if (disposing && (components != null))        {          components.Dispose();        }        base.Dispose(disposing);      }      #region Windows 窗体设计器生成的代码      /// <summary>      /// 设计器支持所需的方法 - 不要      /// 使用代码编辑器修改此方法的内容。      /// </summary>      private void InitializeComponent()      {        this.button3 = new System.Windows.Forms.Button();        this.txbAttach = new TextBoxUnSelectAllable();        this.button2 = new System.Windows.Forms.Button();        this.button1 = new System.Windows.Forms.Button();        this.plButtonsZone = new AhDung.WinForm.MessageBoxEx.MessageForm.PanelBasic();        this.ckbToggle = new AhDung.WinForm.MessageBoxEx.MessageForm.ToggleButton(this.UseAnimate);        this.plAttachZone = new AhDung.WinForm.MessageBoxEx.MessageForm.PanelBasic();        this.lbMsg = new AhDung.WinForm.MessageBoxEx.MessageForm.MessageViewer();        this.plButtonsZone.SuspendLayout();        this.plAttachZone.SuspendLayout();        this.SuspendLayout();        //         // button3        //         this.button3.Anchor = System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right;        this.button3.Location = new System.Drawing.Point(320, 8);        this.button3.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);        this.button3.Name = "button3";        this.button3.Size = new System.Drawing.Size(85, 27);        this.button3.TabIndex = 2;        //         // txbAttach        //         this.txbAttach.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)                     | System.Windows.Forms.AnchorStyles.Left)                     | System.Windows.Forms.AnchorStyles.Right;        this.txbAttach.Location = new System.Drawing.Point(10, 7);        this.txbAttach.Margin = new System.Windows.Forms.Padding(3, 1, 3, 1);        this.txbAttach.Name = "txbAttach";        this.txbAttach.ReadOnly = true;        this.txbAttach.Multiline = true;        this.txbAttach.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;        this.txbAttach.Size = new System.Drawing.Size(395, 105);        this.txbAttach.TabIndex = 0;        //         // button2        //         this.button2.Anchor = System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right;        this.button2.Location = new System.Drawing.Point(229, 8);        this.button2.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);        this.button2.Name = "button2";        this.button2.Size = new System.Drawing.Size(85, 27);        this.button2.TabIndex = 1;        //         // button1        //         this.button1.Anchor = System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right;        this.button1.Location = new System.Drawing.Point(138, 8);        this.button1.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);        this.button1.Name = "button1";        this.button1.Size = new System.Drawing.Size(85, 27);        this.button1.TabIndex = 0;        //         // plButtonsZone        //         this.plButtonsZone.Controls.Add(this.ckbToggle);        this.plButtonsZone.Controls.Add(this.button1);        this.plButtonsZone.Controls.Add(this.button2);        this.plButtonsZone.Controls.Add(this.button3);        this.plButtonsZone.Dock = System.Windows.Forms.DockStyle.Bottom;        this.plButtonsZone.Location = new System.Drawing.Point(0, 96);        this.plButtonsZone.Margin = new System.Windows.Forms.Padding(3, 1, 3, 1);        this.plButtonsZone.Name = "plButtonsZone";        this.plButtonsZone.Size = new System.Drawing.Size(415, 36);        this.plButtonsZone.TabIndex = 1;        //         // ckbToggle        //         this.ckbToggle.Location = new System.Drawing.Point(10, 8);        this.ckbToggle.Name = "ckbToggle";        this.ckbToggle.Size = new System.Drawing.Size(93, 27);        this.ckbToggle.TabIndex = 3;        this.ckbToggle.Text = "详细信息(&D)";        this.ckbToggle.CheckedChanged += this.ckbToggle_CheckedChanged;        //         // plAttachZone        //         this.plAttachZone.Controls.Add(this.txbAttach);        this.plAttachZone.Dock = System.Windows.Forms.DockStyle.Fill;        this.plAttachZone.Location = new System.Drawing.Point(0, 130);        this.plAttachZone.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);        this.plAttachZone.Name = "plAttachZone";        this.plAttachZone.Size = new System.Drawing.Size(415, 114);        this.plAttachZone.TabIndex = 2;        this.plAttachZone.Visible = false;        //         // lbMsg        //         this.lbMsg.Dock = System.Windows.Forms.DockStyle.Fill;        this.lbMsg.Icon = null;        this.lbMsg.Location = new System.Drawing.Point(0, 0);        this.lbMsg.Name = "lbMsg";        this.lbMsg.Padding = new System.Windows.Forms.Padding(21, 18, 21, 18);        //this.lbMsg.Size = new System.Drawing.Size(415, 96);        this.lbMsg.TabIndex = 0;        //         // FmMsg        //         this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;        //this.ClientSize = new System.Drawing.Size(415, 261);        this.Controls.Add(this.lbMsg);        this.Controls.Add(this.plButtonsZone);        this.Controls.Add(this.plAttachZone);        this.DoubleBuffered = true;        this.MaximizeBox = false;        this.Name = "MessageForm";        this.Padding = new System.Windows.Forms.Padding(0, 0, 0, 17);        this.ShowIcon = false;        this.ShowInTaskbar = false;        this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;        this.plButtonsZone.ResumeLayout(false);        this.plAttachZone.ResumeLayout(false);        this.plAttachZone.PerformLayout();        this.ResumeLayout(false);      }      #endregion      private ToggleButton ckbToggle;      private TextBoxUnSelectAllable txbAttach;      private MessageViewer lbMsg;      private System.Windows.Forms.Button button2;      private System.Windows.Forms.Button button1;      private PanelBasic plButtonsZone;      private PanelBasic plAttachZone;      private System.Windows.Forms.Button button3;      #endregion      /// <summary>      /// 最大默认窗体客户区宽度      /// </summary>      const int MaxClientWidth = 700;      int expandHeight;      /// <summary>      /// 详细信息区展开高度      /// </summary>      private int ExpandHeight      {        get { return expandHeight < 150 ? 150 : expandHeight; }        set { expandHeight = value; }      }      #region 属性      /// <summary>      /// 是否启用动画效果      /// </summary>      /// <remarks>此处还弄该属性是为了保证窗体类的独立性</remarks>      private bool UseAnimate { get; set; }      /// <summary>      /// 是否启用声音反馈      /// </summary>      /// <remarks>此处还弄该属性是为了保证窗体类的独立性</remarks>      private bool UseSound { get; set; }      /// <summary>      /// 消息按钮      /// </summary>      private MessageBoxButtons MessageButtons { get; set; }      /// <summary>      /// 消息图标      /// </summary>      private MessageBoxIcon MessageIcon { get; set; }      /// <summary>      /// 默认按钮      /// </summary>      private MessageBoxDefaultButton DefaultButton { get; set; }      #endregion      /// <summary>      /// 创建消息窗体      /// </summary>      private MessageForm(bool enableAnimate)      {        this.UseAnimate = enableAnimate;//须尽早设置,要供展开按钮初始化用        InitializeComponent();        this.StartPosition = Form.ActiveForm == null ? FormStartPosition.CenterScreen : FormStartPosition.CenterParent;        this.Font = SystemFonts.MessageBoxFont;        //注册事件        this.button1.Click += button_Click;        this.button2.Click += button_Click;        this.button3.Click += button_Click;        this.plAttachZone.Resize += plAttachZone_Resize;      }      /// <summary>      /// 创建消息窗体      /// </summary>      public MessageForm(string message, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton, string attachMessage, bool enableAnimate, bool enableSound)        : this(enableAnimate)      {        this.lbMsg.Text = message;        this.Text = caption;        this.txbAttach.Text = attachMessage;        this.MessageButtons = buttons;        this.MessageIcon = icon;        this.DefaultButton = defaultButton;        this.UseSound = enableSound;      }      #region 重写基类方法      protected override void OnLoad(EventArgs e)      {        //须在计算各种尺寸前搞掂        ProcessIcon();        ProcessButtons();        this.MinimumSize = SizeFromClientSize(new Size(GetPanelButtonMinWidth(), GetClientMinHeight()));        //参数意义定为客户区最大大小,所以需刨掉非客户区高度后传入        this.ClientSize = this.GetPreferredSize(new Size(MaxClientWidth, Screen.PrimaryScreen.WorkingArea.Height - (this.Height - this.ClientSize.Height)));        base.OnLoad(e);      }      protected override void OnShown(EventArgs e)      {        //设置默认按钮焦点。须在OnShown中设置按钮焦点才有用        Button dfBtn;        if ((dfBtn = this.AcceptButton as Button) != null)        {          dfBtn.Focus();        }        //播放消息提示音        if (this.UseSound) { PlayMessageSound(this.MessageIcon); }        base.OnShown(e);      }      //重写窗体参数      protected override CreateParams CreateParams      {        get        {          CreateParams prms = base.CreateParams;          if ((Convert.ToInt32(this.MessageButtons) & 1) == 0) //没有Cancel按钮时屏蔽关闭按钮,刚好在偶数项          {            prms.ClassStyle |= 0x200;          }          return prms;        }      }      /// <summary>      /// 计算合适的窗口尺寸      /// </summary>      /// <param name="proposedSize">该参数此处定义为客户区可设置的最大尺寸</param>      public override Size GetPreferredSize(Size proposedSize)      {        int reservedHeight = plButtonsZone.Height + Padding.Bottom;        Size size = lbMsg.GetPreferredSize(new Size(proposedSize.Width, proposedSize.Height - reservedHeight));        size.Height += reservedHeight;        return size;      }      #endregion      #region 事件处理方法      //展开收起      private void ckbToggle_CheckedChanged(object sender, EventArgs e)      {        this.SuspendLayout();        if (ckbToggle.Checked)        {          plButtonsZone.SendToBack();          lbMsg.SendToBack();          lbMsg.Dock = DockStyle.Top;          plButtonsZone.Dock = DockStyle.Top;          ChangeFormHeight(ExpandHeight);          plAttachZone.Visible = true;        }        else        {          ExpandHeight = plAttachZone.Height;//记忆展开高度          plAttachZone.Visible = false;          ChangeFormHeight(-ExpandHeight);          plButtonsZone.SendToBack();          plButtonsZone.Dock = DockStyle.Bottom;          lbMsg.Dock = DockStyle.Fill;        }        this.ResumeLayout();      }      //按钮事件      private void button_Click(object sender, EventArgs e)      {        this.DialogResult = (DialogResult)((sender as Button).Tag);      }      //用户手工收完详细区则触发折叠      private void plAttachZone_Resize(object sender, EventArgs e)      {        if (ckbToggle.Checked && plAttachZone.Height == 0)        {          ckbToggle.Checked = false;        }      }      #endregion      #region 辅助+私有方法      /// <summary>      /// 处理按钮相关      /// </summary>      private void ProcessButtons()      {        this.ckbToggle.Visible = txbAttach.Text.Trim().Length != 0; //无详细信息就不显示展开按钮        int btnCount = 3; //按钮数量        switch (MessageButtons) //老实用case,可读点        {          case MessageBoxButtons.AbortRetryIgnore:            button1.Text = "中止(&A)";            button1.Tag = DialogResult.Abort;            button2.Text = "重试(&R)";            button2.Tag = DialogResult.Retry;            button3.Text = "忽略(&I)";            button3.Tag = DialogResult.Ignore;            break;          case MessageBoxButtons.OK:            button1.Visible = false;            button2.Visible = false;            button3.Text = "确定";            button3.Tag = DialogResult.OK;            btnCount = 1;            break;          case MessageBoxButtons.OKCancel:            button1.Visible = false;            button2.Text = "确定";            button2.Tag = DialogResult.OK;            button3.Text = "取消";            button3.Tag = DialogResult.Cancel;            btnCount = 2;            break;          case MessageBoxButtons.RetryCancel:            button1.Visible = false;            button2.Text = "重试(&R)";            button2.Tag = DialogResult.Retry;            button3.Text = "取消";            button3.Tag = DialogResult.Cancel;            btnCount = 2;            break;          case MessageBoxButtons.YesNo:            button1.Visible = false;            button2.Text = "是(&Y)";            button2.Tag = DialogResult.Yes;            button3.Text = "否(&N)";            button3.Tag = DialogResult.No;            btnCount = 2;            break;          case MessageBoxButtons.YesNoCancel:            button1.Text = "是(&Y)";            button1.Tag = DialogResult.Yes;            button2.Text = "否(&N)";            button2.Tag = DialogResult.No;            button3.Text = "取消";            button3.Tag = DialogResult.Cancel;            break;          default:            break;        }        //仅有OK和有取消按钮时设CancelButton        if ((int)MessageButtons == 0 || ((int)MessageButtons & 1) == 1)        {          this.CancelButton = button3;        }        //处理默认按钮        if (btnCount == 1)        {          this.AcceptButton = button3;        }        else if (btnCount == 2)        {          this.AcceptButton = DefaultButton == MessageBoxDefaultButton.Button2 ? button3 : button2;        }        else        {          Button[] btnArray = { button1, button2, button3 };          this.AcceptButton = btnArray[Convert.ToInt32(DefaultButton) / 0x100];        }      }      /// <summary>      /// 处理图标      /// </summary>      /// <remarks>之所以不在此处顺便把Sound处理了是为了松耦合</remarks>      private void ProcessIcon()      {        switch (MessageIcon)        {          //MessageBoxIcon.Information同样          case MessageBoxIcon.Asterisk:            lbMsg.Icon = SystemIcons.Information;            break;          //MessageBoxIcon.Hand、MessageBoxIcon.Stop同样          case MessageBoxIcon.Error:            lbMsg.Icon = SystemIcons.Error;            break;          //MessageBoxIcon.Warning同样          case MessageBoxIcon.Exclamation:            lbMsg.Icon = SystemIcons.Warning;            break;          case MessageBoxIcon.Question:            lbMsg.Icon = SystemIcons.Question;            break;          default:            lbMsg.Icon = null;            break;        }      }      /// <summary>      /// 计算窗体客户区最小高度      /// </summary>      private int GetClientMinHeight()      {        return lbMsg.MinimumHeight + plButtonsZone.Height + Padding.Bottom;      }      /// <summary>      /// 计算按钮区最小宽度      /// </summary>      private int GetPanelButtonMinWidth()      {        int r = 20 /*左右Padding*/, visibleCount = -1 /*因为两个以上才会有间距*/;        if (ckbToggle.Visible)        {          r += ckbToggle.Width;          visibleCount++;        }        if (button1.Visible)        {          r += button1.Width * 3;          visibleCount += 3;        }        else if (button2.Visible)        {          r += button2.Width * 2;          visibleCount += 2;        }        else        {          r += button3.Width;          visibleCount++;        }        if (visibleCount != -1)        {          r += visibleCount * 6;        } //按钮间距        return r;      }      /// <summary>      /// 改变窗体高度。内部有动画处理      /// </summary>      /// <param name="increment">增量(负数即为减小高度)</param>      private void ChangeFormHeight(int increment)      {        int finalHeight = this.Height + increment; //正确的目标高度        if (!this.UseAnimate) //不使用动画        {          this.Height = finalHeight;          return;        }        const int step = 8; //帧数        for (int i = 0; i < step; i++)        {          if (i == step - 1) //最后一步直达目标          {            this.Height = finalHeight;            return;          }          this.Height += increment / step;          Application.DoEvents(); //必要          Thread.Sleep(10);        }      }      /// <summary>      /// 播放系统事件声音      /// </summary>      /// <remarks>之所以不用MessageBeep API是因为这货在NT6上不出声,所以用PlaySound代替</remarks>      private static void PlayMessageSound(MessageBoxIcon msgType)      {        string eventString;        switch (msgType)        {          case MessageBoxIcon.None:            eventString = "SystemDefault";            break;          //Question原本是没声音的,此实现让它蹭一下Information的          case MessageBoxIcon.Question:          //MessageBoxIcon.Information同样          case MessageBoxIcon.Asterisk:            eventString = "SystemAsterisk";            break;          //MessageBoxIcon.Hand、MessageBoxIcon.Stop同样          case MessageBoxIcon.Error:            eventString = "SystemHand";            break;          //MessageBoxIcon.Warning同样          case MessageBoxIcon.Exclamation:            eventString = "SystemExclamation";            break;          default:            throw new ArgumentOutOfRangeException();        }        PlaySound(eventString, IntPtr.Zero, 0x10000 /*SND_ALIAS*/| 0x1 /*SND_ASYNC*/);      }      [DllImport("winmm.dll", CharSet = CharSet.Auto)]      private static extern bool PlaySound([MarshalAs(UnmanagedType.LPWStr)] string soundName, IntPtr hmod, int soundFlags);      #endregion      #region 嵌套类      /// <summary>      /// 基础面板      /// </summary>            private class PanelBasic : Control      {        public PanelBasic()        {          SetStyle(ControlStyles.AllPaintingInWmPaint, false);//关键,不要设置双缓冲,不然其上的ToolBar不正常          SetStyle(ControlStyles.OptimizedDoubleBuffer, true);//重要。不设置的话控件绘制不正常          SetStyle(ControlStyles.ContainerControl, true);          SetStyle(ControlStyles.Selectable, false);        }        protected override void WndProc(ref Message m)        {          //屏蔽WM_ERASEBKGND。防止显示时在原位置快闪          //不能通过ControlStyles.AllPaintingInWmPaint=true屏蔽          //会影响其上的ToolBar          if (m.Msg == 0x14) { return; }          base.WndProc(ref m);        }        protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified)        {          //防Dock时面板短暂滞留在原位置          base.SetBoundsCore(x, y, width, height, specified | BoundsSpecified.Y | BoundsSpecified.Width);        }      }      /// <summary>      /// 消息呈现控件      /// </summary>      private class MessageViewer : Control      {        const TextFormatFlags textFlags = TextFormatFlags.EndEllipsis //未完省略号                         | TextFormatFlags.WordBreak //允许换行                         | TextFormatFlags.NoPadding //无边距                         | TextFormatFlags.ExternalLeading //行间空白。NT5必须,不然文字挤在一起                         | TextFormatFlags.TextBoxControl; //避免半行        const int IconSpace = 5; //图标与文本间距        const float PreferredScale = 13;//最佳文本区块比例(宽/高)        /// <summary>        /// 最小高度。不要重写MinimumSize,那会在窗体移动和缩放时都会执行        /// </summary>        public int MinimumHeight        {          get          {            return (this.Icon != null ? Math.Max(this.Icon.Height, this.Font.Height) : this.Font.Height) + Padding.Vertical;          }        }        /// <summary>        /// 获取或设置图标        /// </summary>        public Icon Icon { get; set; }        public MessageViewer()        {          this.SetStyle(ControlStyles.CacheText, true);          this.SetStyle(ControlStyles.UserPaint, true);          this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);          this.SetStyle(ControlStyles.Selectable, false);          this.SetStyle(ControlStyles.ResizeRedraw, true); //重要          this.DoubleBuffered = true; //双缓冲          BackColor = Environment.OSVersion.Version.Major == 5 ? SystemColors.Control : Color.White;        }        //防Dock改变尺寸        protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified)        {          base.SetBoundsCore(x, y, width, height, specified | BoundsSpecified.Size);        }        /// <summary>        /// 计算合适的消息区尺寸        /// </summary>        /// <param name="proposedSize">该参数此处定义为此控件可设置的最大尺寸</param>        /// <remarks>该方法对太长的单行文本有做比例优化处理,避免用户摆头幅度过大扭到脖子</remarks>        public override Size GetPreferredSize(Size proposedSize)        {          if (proposedSize.Width < 10) { proposedSize.Width = int.MaxValue; }          if (proposedSize.Height < 10) { proposedSize.Height = int.MaxValue; }          int reservedWidth = Padding.Horizontal + (this.Icon == null ? 0 : (this.Icon.Width + IconSpace));          Size wellSize = Size.Empty;          if (!string.IsNullOrEmpty(this.Text))          {            //用指定宽度测量文本面积            Size size = TextRenderer.MeasureText(this.Text, this.Font, new Size(proposedSize.Width - reservedWidth, 0), textFlags);            int lineHeight = TextRenderer.MeasureText(" ", this.Font, new Size(int.MaxValue, 0), textFlags).Height;//单行高,Font.Height不靠谱            wellSize = Convert.ToSingle(size.Width) / size.Height > PreferredScale //过于宽扁的情况              ? Size.Ceiling(GetSameSizeWithNewScale(size, PreferredScale))              : size;            //凑齐整行高,确保尾行显示            wellSize.Height = Convert.ToInt32(Math.Ceiling(wellSize.Height / Convert.ToDouble(lineHeight))) * lineHeight;          }          if (this.Icon != null)          {            wellSize.Width += this.Icon.Width + IconSpace;            wellSize.Height = Math.Max(this.Icon.Height, wellSize.Height);          }          wellSize += Padding.Size;          //不应超过指定尺寸。宽度在上面已确保不会超过          if (wellSize.Height > proposedSize.Height) { wellSize.Height = proposedSize.Height; }          return wellSize;        }        /// <summary>        /// 重绘        /// </summary>        protected override void OnPaint(PaintEventArgs e)        {          Graphics g = e.Graphics;          Rectangle rect = GetPaddedRectangle();          //绘制图标          if (this.Icon != null)          {            g.DrawIcon(this.Icon, Padding.Left, Padding.Top);            //右移文本区            rect.X += this.Icon.Width + IconSpace;            rect.Width -= this.Icon.Width + IconSpace;            //若文字太少,则与图标垂直居中            if (this.Text.Length < 100)            {              Size textSize = TextRenderer.MeasureText(g, this.Text, this.Font, rect.Size, textFlags);              if (textSize.Height <= this.Icon.Height)              {                rect.Y += (this.Icon.Height - textSize.Height) / 2;              }            }          }          //g.FillRectangle(Brushes.Gainsboro, rect);//test          //绘制文本          TextRenderer.DrawText(g, this.Text, this.Font, rect, Color.Black, textFlags);          base.OnPaint(e);        }        /// <summary>        /// 根据原尺寸,得到相同面积、且指定比例的新尺寸        /// </summary>        /// <param name="src">原尺寸</param>        /// <param name="scale">新尺寸比例。需是width/height</param>        private static SizeF GetSameSizeWithNewScale(Size src, float scale)        {          int sqr = src.Width * src.Height;//原面积          double w = Math.Sqrt(sqr * scale);//新面积宽          return new SizeF(Convert.ToSingle(w), Convert.ToSingle(sqr / w));        }        /// <summary>        /// 获取刨去Padding的内容区        /// </summary>        private Rectangle GetPaddedRectangle()        {          Rectangle r = this.ClientRectangle;          r.X += this.Padding.Left;          r.Y += this.Padding.Top;          r.Width -= this.Padding.Horizontal;          r.Height -= this.Padding.Vertical;          return r;        }      }      /// <summary>      /// 屏蔽全选消息的文本框      /// </summary>      private class TextBoxUnSelectAllable : TextBox      {        protected override void WndProc(ref Message m)        {          //EM_SETSEL          if (m.Msg == 0xB1) { return; }          base.WndProc(ref m);        }      }      /// <summary>      /// 包装ToolBarButton为单一控件      /// </summary>      private class ToggleButton : Control      {        /// <summary>        /// 展开/收起图标数据        /// </summary>        const string ImgDataBase64 =@"iVBORw0KGgoAAAANSUhEUgAAACAAAAAQCAYAAAB3AH1ZAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA3NJREFUeNqklVlPFEEQx/8zPccue6gorMd6gBegeCAQD4w+oCx+AInxIB4EfTK8+g2MQUUTcBU8En0wmvigEkyMxgcTjRrUqHFVUBRQQaJGl2WPmbG6dzCLWUiESf7T0739666urqqVDjVcxT9PAWkfqZKUY491ktpIzaRXGPv5L15J+dZIRx26dqAwf56c48+Cx+1CzDDR//13/seevvx3HZ8O";        readonly bool isToggleMode;        bool isChecked;        bool useAnimate;        readonly ImageList imgList;        /// <summary>        /// Checked改变后        /// </summary>        public event EventHandler CheckedChanged;        /// <summary>        /// 使用动画按钮效果        /// </summary>        private bool UseAnimate        {          get { return useAnimate; }          set          {            if (useAnimate == value) { return; }            useAnimate = value;            if (IsHandleCreated) { this.CreateHandle(); }          }        }        /// <summary>        /// 获取或设置按钮是否处于按下状态        /// </summary>        [Description("获取或设置按钮是否处于按下状态"), DefaultValue(false)]        public bool Checked        {          get          {            if (IsHandleCreated)            {              //保证isChecked与实情吻合。TB_ISBUTTONCHECKED              isChecked = Convert.ToBoolean(SendMessage(this.Handle, 0x40A, IntPtr.Zero, IntPtr.Zero).ToInt32());            }            return isChecked;          }          set          {            if (isChecked == value || !isToggleMode) { return; }            isChecked = value;            if (IsHandleCreated)            {              //TB_CHECKBUTTON              SendMessage(this.Handle, 0x402, IntPtr.Zero, new IntPtr(Convert.ToInt32(value)));            }            OnCheckedChanged(EventArgs.Empty);          }        }        /// <summary>        /// 创建ToolBarButtonControl        /// </summary>        public ToggleButton(bool useAnimate)        {          SetStyle(ControlStyles.UserPaint, false);          SetStyle(ControlStyles.AllPaintingInWmPaint, true);          SetStyle(ControlStyles.OptimizedDoubleBuffer, true);          SetStyle(ControlStyles.ResizeRedraw, true);          this.isToggleMode = true;//写死好了,独立版才提供设置          this.UseAnimate = useAnimate;          //将图标加入imageList          imgList = new ImageList { ImageSize = new System.Drawing.Size(16, 16), ColorDepth = ColorDepth.Depth32Bit };          using (MemoryStream ms = new MemoryStream(Convert.FromBase64String(ImgDataBase64)))          {            imgList.Images.AddStrip(Image.FromStream(ms));          }        }        /// <summary>        /// 执行左键单击        /// </summary>        public void PerformClick()        {          SendMessage(this.Handle, 0x201, new IntPtr(0x1), IntPtr.Zero);//WM_LBUTTONDOWN          Application.DoEvents();          SendMessage(this.Handle, 0x202, IntPtr.Zero, IntPtr.Zero);  //WM_LBUTTONUP        }        protected override void WndProc(ref Message m)        {          //有节操的响应鼠标动作          if ((m.Msg == 0x201 || m.Msg == 0x202) && (!this.Enabled || !this.Visible))          {            return;          }          base.WndProc(ref m);        }        //创建ToolBar        protected override CreateParams CreateParams        {          get          {            CreateParams prms = base.CreateParams;            prms.ClassName = "ToolbarWindow32";            prms.Style = 0x40000000              | 0x10000000              //| 0x2000000 //WS_CLIPCHILDREN              //| 0x8000              | 0x1              | 0x4              | 0x8              | 0x40              | 0x1000 //TBSTYLE_LIST,图标文本横排              ;            if (UseAnimate) { prms.Style |= 0x800; }//TBSTYLE_FLAT。flat模式在NT6.x下,按钮按下会有动画效果            prms.ExStyle = 0;            return prms;          }        }        protected override void OnHandleCreated(EventArgs e)        {          base.OnHandleCreated(e);          //设置imgList          SendMessage(this.Handle, 0x430, IntPtr.Zero, imgList.Handle);//TB_SETIMAGELIST          //准备添加按钮          int btnStructSize = Marshal.SizeOf(typeof(TBBUTTON));          SendMessage(this.Handle, 0x41E, new IntPtr(btnStructSize), IntPtr.Zero);//TB_BUTTONSTRUCTSIZE,必须在添加按钮前          //构建按钮信息          TBBUTTON btnStruct = new TBBUTTON          {            //iBitmap = 0,            //idCommand = 0,            fsState = 0x4, //TBSTATE_ENABLED            iString = SendMessage(this.Handle, 0x44D, 0, this.Text + '\0')//TB_ADDSTRING          };          if (this.isToggleMode) { btnStruct.fsStyle = 0x2; }//BTNS_CHECK。作为切换按钮时          IntPtr btnStructStart = IntPtr.Zero;          try          {            btnStructStart = Marshal.AllocHGlobal(btnStructSize);//在非托管区创建一个指针            Marshal.StructureToPtr(btnStruct, btnStructStart, true);//把结构体塞到上述指针            //添加按钮            SendMessage(this.Handle, 0x444, new IntPtr(1)/*按钮数量*/, btnStructStart);//TB_ADDBUTTONS。从指针取按钮信息            //设置按钮尺寸刚好为ToolBar尺寸            AdjustButtonSize();          }          finally          {            if (btnStructStart != IntPtr.Zero) { Marshal.FreeHGlobal(btnStructStart); }          }        }        protected override bool ProcessCmdKey(ref Message m, Keys keyData)        {          //将空格和回车作为鼠标单击处理          if (m.Msg == 0x100 && (keyData == Keys.Enter || keyData == Keys.Space))          {            PerformClick();            return true;          }          return base.ProcessCmdKey(ref m, keyData);        }        /// <summary>        /// 处理助记键        /// </summary>        protected override bool ProcessMnemonic(char charCode)        {          if (IsMnemonic(charCode, this.Text))          {            PerformClick();            return true;          }          return base.ProcessMnemonic(charCode);        }        protected override void OnClick(EventArgs e)        {          //忽略鼠标右键          MouseEventArgs me = e as MouseEventArgs;          if (me != null && me.Button != System.Windows.Forms.MouseButtons.Left)          { return; }          //若是切换模式,直接引发Checked事件(不要通过设置Checked属性引发,因为OnClick发送之前就已经Check了)          //存在理论上的不可靠,但暂无更好办法          if (isToggleMode)          { this.OnCheckedChanged(EventArgs.Empty); }          base.OnClick(e);        }        //重绘后重设按钮尺寸        protected override void OnInvalidated(InvalidateEventArgs e)        {          base.OnInvalidated(e);          AdjustButtonSize();        }        /// <summary>        /// 引发CheckedChanged事件        /// </summary>        protected virtual void OnCheckedChanged(EventArgs e)        {          SetImageIndex(this.Checked ? 1 : 0);          if (CheckedChanged != null) { CheckedChanged(this, e); }        }        /// <summary>        /// 设置图标索引        /// </summary>        private void SetImageIndex(int index)        {          //TB_CHANGEBITMAP          SendMessage(this.Handle, 0x42B, IntPtr.Zero, new IntPtr(index));        }        /// <summary>        /// 调整按钮尺寸刚好为ToolBar尺寸        /// </summary>        private void AdjustButtonSize()        {          IntPtr lParam = new IntPtr((this.Width & 0xFFFF) | (this.Height << 0x10)); //MakeLParam手法          SendMessage(this.Handle, 0x41F, IntPtr.Zero, lParam); //TB_SETBUTTONSIZE        }        #region Win32 API        [DllImport("user32.dll", CharSet = CharSet.Auto)]        private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);        [DllImport("user32.dll", CharSet = CharSet.Auto)]        private static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, string lParam);        [StructLayout(LayoutKind.Sequential)]        private struct TBBUTTON        {          public int iBitmap;          public int idCommand;          public byte fsState;          public byte fsStyle;          public byte bReserved0;          public byte bReserved1;          public IntPtr dwData;          public IntPtr iString;        }        #endregion      }      #endregion    }  }}

MessageBoxEx.cs

实现说明:

以下内容献给爱“八卦”和蛋疼的童鞋。这里先贴个概要类图,详细的后面有完整Demo下载,你可以down回去慢慢研究。

  • 若干Show方法都是调用私有的ShowCore方法,这个是模仿标准MessageBox的命名。至于意义,是因为公开方法要做参数检查,检查合格后的代码则可以重用。另外,几个存在参数检查的方法都是调用内部方法,而不是调参数最全的那个重载,也是因为要尽量避免无谓的参数检查,因为参数最全的那个公开方法,参数检查自然是做的最多的,那么少参方法本来已经能确保传入的是合法参数,却因为调它,就会造成无谓的检查,而调内部方法则可以避免,因为内部方法就应该设计为不做或少做参数检查的。啰嗦这个是想提醒初学者注意这些细节上的处理,性能要从细处抓起
  • 静态类MessageBoxEx内部维护着一个MessageForm窗体类(下文简称MsgFm),每次Show都会实例化一个MsgFm,show完即释放。几乎所有能力都是由后者提供,前者只是简单的对其封装和暴露,所以下面主要说MsgFm的事。另外,根据传入的MessageBoxButtons有无Cancel项,会启用/屏蔽窗体右上角的关闭按钮,因为该单击关闭按钮的默认对话框结果就是DialogResult.Cancel,所以如果不屏蔽,在传入YesNo这样的参数时候,调用者可能因为用户去点关闭按钮而得到Yes、No以外的结果。标准消息框也是有这样的屏蔽处理的
  • MsgFm由3个控件区构成,分别是主消息区、按钮区、详细信息区
    • 主消息区是一个单一控件:MessageViewer,直接继承自Control写成。一开始是考虑用现成的Label控件,但发现后者的图文混排效果差强人意(不要扯这个成语本来的意思),它是把文字直接盖在图标上,呵呵,大概此控件的编写者本意就是要把Image当BackgroundImage用,所以不得已另写一个MessageViewer。MV主要做了两个事,绘制(图标和文本)+根据内容确定自身尺寸,另外它还控制了最小高度,避免图标和文本整体被淹没
    • 按钮区由一个容器类控件PanelBasic托起4个按钮。PB同样是继承自Control,没有直接选用Panel的原因,主要是Panel会在设置Dock时跳一下,根源在Control.SetBoundsCore的specified参数通知了无谓的信息,所以干脆直接继承Control重写该方法,顺便处理一下消息,解决瞬闪的问题,具体原因这里不细说,注释里有简短说明,总之相信我不是蛋疼就行了
    • PanelBasic上的4个按钮分别是【详细信息】按钮和其它3个对话框命令按钮。仨按钮根据传入的MessageBoxButtons参数动态处理(按钮文本、是否可见等),没什么好说的。【详细信息】按钮(ToggleButton)则费了番功夫,该按钮从外观上就可以看出不是标准的Button,事实上它是个工具栏按钮:ToolBarButton,属于ToolBar上的Item,本身不是独立的控件(直接继承自Component)。这里扯一点,由于.net 2.0起MS就建议用新式的ToolStrip代替ToolBar,类似的还有MenuStrip代替MainMenu、StatusStrip代替StatusBar、ContextMenuStrip代替ContextMenu,VS2010更是默认就不在工具箱显示这些“控件”(有些不算控件),所以估计知道的新童鞋不多。后者都是原生的win32组件,前者则是纯.net实现的,有Office2003的控件风格。总之对于有win32 native控的我来说,对这些被建议替代的老式控件有特别的情结。所以这个ToggleButton实际上是由一个ToolBar和一个ToolBarButton组成的看起来像一个单一控件的东西,那为什么它还是继承自Control而不是直接用ToolBar呢,我承认这里面有练手的原因(迟些我可能会写一篇【教你一步步封装一个Win32原生控件】的文章),Hmmm~也就这个原因了,但它虽然增加了代码量,但请务必相信性能不比直接用ToolBar差,理论上还要好过,因为作为一个完备的ToolBar,MS要考虑的情况相当多,显然处理也少不了,而我这个ToggleButton由于只负责一个单一按钮的功能,所以其实很Simple很Lite~聪明的你会理解的。最后为什么要费事弄成ToolBarButton而不是直接用一个Button,是因为我看上了mstsc.exe的这个效果:
      顺便说一点,EnableAnimate属性有作用到该按钮,原理是当ToolBar具有Flat样式的时候,按钮按下和弹起就有动画效果,否则没有
    • 最后是详细信息区,由一个PanelBasic托起一个简单改造过的TextBox构成。干嘛不单纯用一个TextBox,而要在它底下垫一层呢,是因为在XP上的效果不好(控件狗要考虑的情况很多了啦好不好),XP窗口边框不如NT6粗,不加点衬料的话太单薄。话说回来,PanelBasic上面已说过,而所谓改造过的这个TextBox叫TextBoxUnSelectAllable,就干一件事,忽略全选消息(EM_SETSEL),避免焦点移进去的时候蓝莹莹一大片吓到观众。而为什么不用标准TextBox的Enter事件取消全选,一个字~太low
  • 尚存在一个问题,这个注释里也有坦白,就是当主消息文本非常非常多时~大概整屏那么长(这其实是不正确的使用姿势,上面说过,大量信息应该放详细信息区),如果对对话框反复拖拉、展开/收起,那么在某次展开时,TextBoxUnSelectAllable会瞬间在主消息区闪一下,这个问题在PanelBasic得到了完美的解决,但TextBox实在无能为力,尝试过直接用原生Edit控件也如此,所以暂时留着吧,哪有没缺憾的人生呢
  • 至于消息框的声音,NT6上的标准消息框原本就是没有声音的,所以照常用MessageBeep API,无声就无声,也无不可,但我考虑即便是尽量靠向原生,也不代表啥都要照搬,取其精华弃其糟泊才是正道,所以用了PlaySound API,让消息声回到NT6的世界,同时XP表现不变~人家原本就有声音
  • 最后,【详细信息】按钮上那俩图标(展开、收起各一个)是我画的,本来想拣mstsc.exe上的,但发现效果不如意,还不如自己画

说了这么多,自以为很理想的实现,可能槽点也不少,再次恳请路过大侠指点,谢谢。

最后,Demo在此,里面有个Tester供你体验:

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