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C#实现 Winform 程序在系统托盘显示图标 & 开机自启动
实现步骤 创建 NotifyIcon 控件并设置属性; 编写 NotifyIcon 响应控制事件; 在主窗体的Load事件中将 NotifyIcon 添加到系统托盘; 程序退出时,移除系统托盘的 NotifyIcon; NotifyIcon 控件,通常用于在系统托盘中显示图标,通过使用它就可以我们想要的效果。 属性描述 Icon 在系统托盘中显示的图标 Text 鼠标悬停在图标时显示的文本 Visible 指定是否可见 常用方法 方法描述 ShowContextMenu 在系统托盘上下文菜单中显示指定的菜单 将NotifyIcon和一个ContextMenuStrip控件。拖到主窗体中可以修改控件名称 NotifyIcon 托盘图标 ContextMenuStrip 托盘图标右击弹出的菜单 点击 ContextMenuStrip 右上方的三角图标 -> 编辑项,弹出项信合编辑器 添加右健菜单信息 在最小化或关闭主窗体时,显示在任务栏托盘区域,实现了单击关闭时,不真正关闭程序,而是将主界面隐藏HIDE掉,同时开始显示托盘菜单。 // 只有Form_Closing事件中...
Spark! Pro series - 29th January 2024
Today, is Tetris day… you have my permission to play Tetris all day! Just a reminder, if you are reading the Spark!, Spice it up. We like it spicy here! Today in History: On January 29, 1988: The computer game Tetris was introduced in the United States as a PC game for the first time. Spectrum Holobyte, the company that launched the game, had questionable licensing rights.
C#大作业--学生信息管理系统_c#学生管理系统_lywmofan的博客-CSDN博客
一、数据库操作 建立数据库结构 1:新建一个数据库 2:表中数据 3:填充表中数据 表结构展示 对数据的基本操作(添加 修改 删除 查询) 1:新增 语法:INSEST INTO + 表名 (字段名1,字段名2,字段3...) VALUES(列表1,列表2,...) 返回值:受影响的行(执行增删改的时候,都会返回受影响的数据) INSERT INTO student (sname, sage) VALUES("周芷若", 19) INSERT INTO student (sname, sage) VALUES('周一', 18),('周二', 19),('周三', 20) 2:修改 语法:UPDATE + 表名 set 列名 = '新的数据' where 条件 update student set sname='张三' where sid=1 update student set sname='周日' where sname='周一' 3:删除 语法:DELETE from 表名 + WHERE 条件 DELETE FROM student WHERE sid = 1 4:查询...
C# using winmm.dll audio recording
bool rec_strt = false; static int incre = 1; //string save_path = "E:\\mic"+incre+".wav"; string save_path = Path.Combine(Environment.CurrentDirectory, @"Sent_files\", incre + ".wav"); [DllImport("winmm.dll", EntryPoint = "mciSendStringA", ExactSpelling = true, CharSet = CharSet.Ansi, SetLastError = true)] private static extern int record(string lpstrCommand, string lpstrReturnString, int uReturnLength, int hwndCallback); private void p_audio_Click(object sender, EventArgs e) { if (rec_strt...
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