如何制作“弹窗"Winforms 中的(提示、下拉、弹出)窗口?

本文介绍了如何制作“弹窗"Winforms 中的(提示、下拉、弹出)窗口?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我怎样才能在 WinForms 中创建一个弹出"窗口?

由于我使用了我自己编造的词popup"，让我举个这个所谓的popup"窗口的例子:

• 工具提示窗口(可以延伸到其父窗体的边界之外，不会出现在任务栏中，不是模态的，并且不会窃取焦点):

• 一个弹出菜单窗口(可以延伸到其父窗体的边界之外，不出现在任务栏中，不是模态的，也不会窃取焦点):

• 下拉式窗口(可以延伸到其父窗体的边界之外，不出现在任务栏中，不是模态的，也不会窃取焦点):

• 主菜单窗口(可以延伸到其父窗体的边界之外，不出现在任务栏中，不是模态的，也不会窃取焦点):

• 更新 弹出式 窗口不会自动生成 )

• 没有出现在任务栏中(即 Window 对应该出现哪些窗口的启发式方法没有起作用，也没有 WS_EX_APPWINDOW 扩展窗口样式)
• 不是模态(即不会禁用其所有者")
• 不偷专注
• 始终在其所有者"之上
• 在与之交互时不会成为活动"窗口(所有者保持活动状态)

Windows 应用程序已经在设法创建此类窗口.如何在 WinForms 应用程序中执行此操作?

相关问题

• 如何在本机代码中实现以上所有功能?
• 如何在 Delphi 中创建弹出窗口?
• 我有这个本机代码来显示弹出"窗口 - 在 .NET 中执行相同操作需要哪些 P/Invokes?
• 我在 .NET 中有一组 P/Invoke - 我可以重用常规 WinForm，覆盖某些方法，以达到相同的效果吗?
• 我有 WinForm，我通过覆盖某些方法将其显示为弹出窗口" - 是否有内置的 Control 可以充当我的弹出窗口?
• 如何在WinForms中模拟下拉窗口?

尝试#1

我尝试了 Show(onwer) + ShowWithoutActivation 方法:

PopupForm dd = new PopupForm ();dd.显示(这个)；

使用 PopupForm:

public class PopupForm: Form{公共弹出窗体(){初始化组件()；}私人无效初始化组件(){this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;this.WindowState = FormWindowState.Normal;this.ShowInTaskbar = false;}protected override bool ShowWithoutActivation{ 得到 { 返回真；} }}

几乎解决了这个问题，但后来我发现被提醒弹出"窗口的另一个属性:它们不会从它们的所有者"表单中获取焦点变成与鼠标或键盘交互时激活.

解决方案

你想要一个拥有的窗口.在你的主要形式中:

private void showPopup_Click(object sender, EventArgs e){PopupForm popupForm = new PopupForm();//使 "this" 成为 form2 的所有者popupForm.Show(this);}

PopupForm 应该如下所示:

public 部分类 PopupForm : Form{私人布尔_激活=假；公共弹出窗体(){初始化组件()；}//确保弹出窗口在第一次显示时没有被激活protected override bool ShowWithoutActivation{得到{返回真；}}私有常量 int WM_NCACTIVATE = 0x86;[DllImport("user32.dll", CharSet = CharSet.Auto)]公共静态外部 IntPtr SendMessage(IntPtr hWnd，int msg，IntPtr wParam，IntPtr lParam)；受保护的覆盖无效 WndProc(参考消息 m){//需要激活弹出窗口以便用户与之交互，//但我们希望保持所有者窗口的外观相同.if ((m.Msg == WM_NCACTIVATE) && !_activating && (m.WParam != IntPtr.Zero)){//弹出窗口正在被激活，确保父级保持激活状态_激活=真；SendMessage(this.Owner.Handle, WM_NCACTIVATE, (IntPtr) 1, IntPtr.Zero);_激活=假；//如果要改变弹出窗口的外观，请在此处调用 base.WndProc}别的{base.WndProc(参考 m);}}}

并确保 PopupForm.ShowInTaskbar = false.

How can i make, what i will call, a "popup" window" in WinForms?

Since i used my own made-up word "popup", let me give examples of this so-called "popup" window:

• a tooltip window (can extend outside the boundaries of its parent form, doesn't appear in the taskbar, is not modal, and doesn't steal focus):

• a popup menu window (can extend outside the boundaries of its parent form, doesn't appear in the taskbar, is not modal, and doesn't steal focus):

• a drop-down window (can extend outside the boundaries of its parent form, doesn't appear in the taskbar, is not modal, and doesn't steal focus):

• A main menu window (can extend outside the boundaries of its parent form, doesn't appear in the taskbar, is not modal, and doesn't steal focus):

• Update A popup window not make itself the "active" window when interacted with using a mouse or keyboard (the "owner" window remains the active window):

The attributes that i'm looking for in this mythical "popup" are that it:

• can extend outside the boundaries of its parent form (i.e. is not a child window)
• doesn't appear in the taskbar (i.e. Window's heuristics of which windows should appear doesn't kick in, nor does it have WS_EX_APPWINDOW extended window style)
• is not modal (i.e. doesn't disable its "owner")
• doesn't steal focus
• is always on-top of of it's "owner"
• does not become the "active" window when interacted with (the owner remains active)

Windows applications are already managing to create such windows. How can i do it in a WinForms application?

Related questions

• How do i achieve all the above in native code?
• How do i create a popup window in Delphi?
• i have this native code to show a "popup" window - what P/Invokes are required to perform the same actions in .NET?
• i have a set of P/Invoke's in .NET - can i reuse a regular WinForm, overriding certain methods, to achieve the same effect?
• i have WinForm that i'm showing as a "popup" by overriding certain methods - is there a built-in Control that can act as a popup for me?
• How to simulate a drop-down window in WinForms?

Attempt#1

i tried the Show(onwer) + ShowWithoutActivation method:

PopupForm dd = new PopupForm (); dd.Show(this);

with PopupForm:

public class PopupForm: Form { public PopupForm() { InitilizeComponent(); } private void InitilizeComponent() { this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.WindowState = FormWindowState.Normal; this.ShowInTaskbar = false; } protected override bool ShowWithoutActivation { get { return true; } } }

Very nearly solved the problem, but then i discovered was reminded of another property of "popup" windows: they do not take focus from their "owner" form become active when interacted with by mouse or keyboard.

解决方案

You want an owned window. In your main form:

private void showPopup_Click(object sender, EventArgs e) { PopupForm popupForm = new PopupForm(); // Make "this" the owner of form2 popupForm.Show(this); }

PopupForm should look like this:

public partial class PopupForm : Form { private bool _activating = false; public PopupForm() { InitializeComponent(); } // Ensure the popup isn't activated when it is first shown protected override bool ShowWithoutActivation { get { return true; } } private const int WM_NCACTIVATE = 0x86; [DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam); protected override void WndProc(ref Message m) { // The popup needs to be activated for the user to interact with it, // but we want to keep the owner window's appearance the same. if ((m.Msg == WM_NCACTIVATE) && !_activating && (m.WParam != IntPtr.Zero)) { // The popup is being activated, ensure parent keeps activated appearance _activating = true; SendMessage(this.Owner.Handle, WM_NCACTIVATE, (IntPtr) 1, IntPtr.Zero); _activating = false; // Call base.WndProc here if you want the appearance of the popup to change } else { base.WndProc(ref m); } } }

And make sure that PopupForm.ShowInTaskbar = false.