worktimer's Introduction

工作定时器

C#实现的工作周期控制，基于之前SoundTimer的功能添加版本。

定时静音锁屏，定时恢复。

关键代码：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Text; 
using System.Windows.Forms; 

using System.Runtime.InteropServices; 

namespace VolumnSet 
{ 
    public partial class Form1 : Form 
    { 

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] 
        static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, uint wParam, uint lParam); 
        const uint WM_APPCOMMAND = 0x319; 
        const uint APPCOMMAND_VOLUME_UP = 0x0a; 
        const uint APPCOMMAND_VOLUME_DOWN = 0x09; 
        const uint APPCOMMAND_VOLUME_MUTE = 0x08; 
        public Form1() 
        { 
            InitializeComponent(); 

        } 
        private void button1_Click(object sender, EventArgs e) 
        { 
            //加音量 
            SendMessage(this.Handle, WM_APPCOMMAND, 0x30292, APPCOMMAND_VOLUME_UP * 0x10000); 
        } 

        private void button2_Click(object sender, EventArgs e) 
        { 
            //减音量 
            SendMessage(this.Handle, WM_APPCOMMAND, 0x30292, APPCOMMAND_VOLUME_DOWN * 0x10000); 
        } 

        private void checkBox1_CheckedChanged(object sender, EventArgs e) 
        { 
            //静音 
            SendMessage(this.Handle, WM_APPCOMMAND, 0x200eb0, APPCOMMAND_VOLUME_MUTE * 0x10000); 
        } 
    } 
}