blocks|key|4007079|text|要在之前进入，表单已经最小化，您必须挂钩到WndProc过程：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4007080|++++private+const+int+WM_SYSCOMMAND+=+0x0112;
++++private+const+int+SC_MINIMIZE+=+0xF020;+

++++[SecurityPermission(SecurityAction.LinkDemand,+Flags+=+SecurityPermissionFlag.UnmanagedCode)]
++++protected+override+void+WndProc(ref+Message+m)
++++{
++++++++switch(m.Msg)
++++++++{
++++++++++++case+WM_SYSCOMMAND:
++++++++++++++++int+command+=+m.WParam.ToInt32()+&+0xfff0;
++++++++++++++++if+(command+==+SC_MINIMIZE)
++++++++++++++++{
++++++++++++++++++++//+Do+your+action
++++++++++++++++}
++++++++++++++++//+If+you+don't+want+to+do+the+default+action+then+break
++++++++++++++++break;
++++++++}
++++++++base.WndProc(ref+m);
++++}|code-block|syntax|javascript|4007081|为了在之后反应，表单已经被最小化到Resize事件中，正如其他答案所指出的那样(为了完整性，这里包含了它)：|CODE|4007082|private+void+Form1_Resize+(object+sender,+EventArgs+e)
{
++++if+(WindowState+==+FormWindowState.Minimized)
++++{
++++++++//+Do+your+action
++++}
}|4007083|entityMap^0|6|P|0|0|0|3|7|1B|H|6|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|U|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|M]]|D|@]|E|$]]|$1|N|3|O|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|P|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|Q|$]]

To get in before the form has been minimised you'll have to hook into the WndProc procedure:

<pre><code> private const int WM_SYSCOMMAND = 0x0112;
 private const int SC_MINIMIZE = 0xF020; 

 [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
 protected override void WndProc(ref Message m)
 {
 switch(m.Msg)
 {
 case WM_SYSCOMMAND:
 int command = m.WParam.ToInt32() &amp; 0xfff0;
 if (command == SC_MINIMIZE)
 {
 // Do your action
 }
 // If you don't want to do the default action then break
 break;
 }
 base.WndProc(ref m);
 }
</code></pre>

To react after the form has been minimised hook into the <code>Resize</code> event as the other answers point out (included here for completeness):

<pre><code>private void Form1_Resize (object sender, EventArgs e)
{
 if (WindowState == FormWindowState.Minimized)
 {
 // Do your action
 }
}
</code></pre>

blocks|key|4007100|text|我不知道有什么特定的事件，但是当表单最小化时会触发Resize事件，您可以在该事件中检查FormWindowState.Minimized|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4007101|entityMap^0|P|6|18|P|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

I don't know of a specific event, but the <code>Resize</code> event fires when the form is minimized, you can check for <code>FormWindowState.Minimized</code> in that event

blocks|key|1569821|text|可以使用Resize事件并检查该事件中的Forms.WindowState属性。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1569822|private+void+Form1_Resize+(+object+sender+,+EventArgs+e+)
{
++++if+(+WindowState+==+FormWindowState.Minimized+)
++++{
++++++++//+Do+some+stuff
++++}
}|code-block|syntax|javascript|1569823|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use the Resize event and check the Forms.WindowState Property in the event.

<pre><code>private void Form1_Resize ( object sender , EventArgs e )
{
 if ( WindowState == FormWindowState.Minimized )
 {
 // Do some stuff
 }
}
</code></pre>

blocks|key|5425505|text|对于搜索WPF窗口最小化事件的人：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5425506|这有点不同。对于回调，使用WindowState：|5425507|private+void+Form1_Resize(object+sender,+EventArgs+e)
{
++++if+(WindowState+==+FormWindowState.Minimized)
++++{
++++++++//+Do+some+stuff
++++}
}|code-block|syntax|javascript|5425508|要使用的事件是StateChanged+(而不是Resize)：|5425509|public+Main()
{
++++InitializeComponent();
++++this.StateChanged+%2B=+Form1_Resize;
}|5425510|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

For people who search for WPF windows minimizing event :

It's a bit different. For the callback use WindowState :

<pre><code>private void Form1_Resize(object sender, EventArgs e)
{
 if (WindowState == FormWindowState.Minimized)
 {
 // Do some stuff
 }
}
</code></pre>

The event to use is StateChanged (instead Resize):

<pre><code>public Main()
{
 InitializeComponent();
 this.StateChanged += Form1_Resize;
}
</code></pre>

I know that I can get the current state by WindowState, but I want to know if there's any event that will fire up when the user tries to minimize the form.

How to detect when a windows form is being minimized?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

我知道我可以通过WindowState获得当前状态，但我想知道当用户试图最小化表单时是否会触发任何事件。

问如何检测窗口窗体何时被最小化？
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何检测窗口窗体何时被最小化？EN