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blog名称:注册会计师（注会）练习软件
日志总数:398
评论数量:116
留言数量:27
访问次数:3303964
建立时间:2005年6月6日 |
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 编程资料搜集中..
软件技术
吕向阳 发表于 2006/6/19 13:48:46 |
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1.c#中如何得到一个月的天数(想当初要自己编),其实里面有函数
DateTime.DaysInMonth(DateTime.Now.Year, DateTime.Now.Month)
2
全局热键的例子
类Hotkey.csusing System;namespace Durius.Generics{public delegate void HotkeyEventHandler(int HotKeyID);/// <summary>/// System wide hotkey wrapper. /// /// Robert Jeppesen/// Send bugs to robert@durius.com/// </summary>public class Hotkey : System.Windows.Forms.IMessageFilter{ System.Collections.Hashtable keyIDs = new System.Collections.Hashtable(); IntPtr hWnd; /// <summary> /// Occurs when a hotkey has been pressed. /// </summary> public event HotkeyEventHandler OnHotkey; public enum KeyFlags { MOD_ALT = 0x1, MOD_CONTROL = 0x2, MOD_SHIFT = 0x4, MOD_WIN = 0x8 } [System.Runtime.InteropServices.DllImport("user32.dll")] public static extern UInt32 RegisterHotKey( IntPtr hWnd, UInt32 id, UInt32 fsModifiers, UInt32 vk); [System.Runtime.InteropServices.DllImport("user32.dll")] public static extern UInt32 UnregisterHotKey( IntPtr hWnd, UInt32 id); [System.Runtime.InteropServices.DllImport("kernel32.dll")] public static extern UInt32 GlobalAddAtom( String lpString ); [System.Runtime.InteropServices.DllImport("kernel32.dll")] public static extern UInt32 GlobalDeleteAtom( UInt32 nAtom ); /// <summary> /// Constructor. Adds this instance to the MessageFilters so that this class can raise Hotkey events /// </summary> /// <param name="hWnd">A valid hWnd, i.e. form1.Handle</param> public Hotkey(IntPtr hWnd) { this.hWnd = hWnd; System.Windows.Forms.Application.AddMessageFilter(this); } /// <summary> /// Register a system wide hotkey. /// </summary> /// <param name="hWnd">form1.Handle</param> /// <param name="Key">Your hotkey</param> /// <returns>ID integer for your hotkey. Use this to know which hotkey was pressed.</returns> public int RegisterHotkey(System.Windows.Forms.Keys Key, KeyFlags keyflags) { UInt32 hotkeyid = GlobalAddAtom(System.Guid.NewGuid().ToString()); RegisterHotKey( (IntPtr)hWnd, hotkeyid, (UInt32)keyflags, (UInt32)Key); keyIDs.Add(hotkeyid, hotkeyid); return (int)hotkeyid; } /// <summary> /// Unregister hotkeys and delete atoms. /// </summary> public void UnregisterHotkeys() { System.Windows.Forms.Application.RemoveMessageFilter(this); foreach (UInt32 key in keyIDs.Values) { UnregisterHotKey(hWnd, key); GlobalDeleteAtom(key); } } public bool PreFilterMessage(ref System.Windows.Forms.Message m) { if (m.Msg == 0x312) /*WM_HOTKEY*/ { if(OnHotkey != null) { foreach (UInt32 key in keyIDs.Values) { if((UInt32)m.WParam == key) { OnHotkey((int)m.WParam); return true; } } } } return false; }}}测试程序Form1.csusing System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using Durius.Generics;namespace TestGenerics{/// <summary>/// Summary description for Form1./// </summary>public class Form1 : System.Windows.Forms.Form{ Hotkey hotkey; int Hotkey1; int Hotkey2; private System.Windows.Forms.Label label1; private System.Windows.Forms.Label label2; private System.Windows.Forms.Label label3; private System.Windows.Forms.Button button1; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public Form1() { // // Required for Windows Form Designer support // InitializeComponent(); /* * Initialize our hotkeys. Pass in a handle to the main form in the constructor, * then call RegisterHotkey for each of our hotkey combinations and wire up * the event */ hotkey = new Hotkey(this.Handle); Hotkey1 = hotkey.RegisterHotkey(System.Windows.Forms.Keys.D1, Hotkey.KeyFlags.MOD_WIN); Hotkey2 = hotkey.RegisterHotkey(System.Windows.Forms.Keys.D2, Hotkey.KeyFlags.MOD_CONTROL); hotkey.OnHotkey += new HotkeyEventHandler(OnHotkey); } /// <summary> /// The hotkey event handler. If you have several hotkeys, you will have to check /// which one was pressed using HotkeyID. /// RegisterHotkey returns the HotkeyID that was assigned to your hotkey. /// </summary> /// <param name="HotkeyID"></param> public void OnHotkey(int HotkeyID) { this.Activate(); if(HotkeyID == Hotkey1) { MessageBox.Show("WIN+1 pressed."); } else if(HotkeyID == Hotkey2) { MessageBox.Show("CTRL+2 pressed."); } } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { hotkey.UnregisterHotkeys(); if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.label1 = new System.Windows.Forms.Label(); this.label2 = new System.Windows.Forms.Label(); this.label3 = new System.Windows.Forms.Label(); this.button1 = new System.Windows.Forms.Button(); this.SuspendLayout(); // // label1 // this.label1.Location = new System.Drawing.Point(16, 8); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(200, 16); this.label1.TabIndex = 0; this.label1.Text = "Hotkeys:"; // // label2 // this.label2.Location = new System.Drawing.Point(16, 32); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(208, 16); this.label2.TabIndex = 1; this.label2.Text = "Win + 1"; // // label3 // this.label3.Location = new System.Drawing.Point(16, 56); this.label3.Name = "label3"; this.label3.Size = new System.Drawing.Size(208, 16); this.label3.TabIndex = 2; this.label3.Text = "Ctrl + 2"; // // button1 // this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat; this.button1.Location = new System.Drawing.Point(88, 80); this.button1.Name = "button1"; this.button1.TabIndex = 3; this.button1.Text = "About"; this.button1.Click += new System.EventHandler(this.button1_Click); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(168, 123); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.button1, this.label3, this.label2, this.label1}); this.Name = "Form1"; this.Text = "Hotkey"; this.ResumeLayout(false); } #endregion /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private void button1_Click(object sender, System.EventArgs e) { MessageBox.Show(this, @"System wide hotkey wrapper- Robert Jeppesenhttp://www.durius.com", "Hotkey sample"); }}}更新中... |
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