C# 软键盘终极版 源码下载

实现数字软键盘
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Media;using System.Runtime.InteropServices;namespace MyControls{ public partial class KeyB : Form { SoundPlayer sp = new SoundPlayer(Properties.Resources.Click2); private bool _show; public KeyB() { InitializeComponent(); _show = false; } private void KeyB_Load(object sender, EventArgs e) { num_0.Click = new EventHandler(NumClick); num_1.Click = new EventHandler(NumClick); num_2.Click = new EventHandler(NumClick); num_3.Click = new EventHandler(NumClick); num_4.Click = new EventHandler(NumClick); num_5.Click = new EventHandler(NumClick); num_6.Click = new EventHandler(NumClick); num_7.Click = new EventHandler(NumClick); num_8.Click = new EventHandler(NumClick); num_9.Click = new EventHandler(NumClick); } #region 按键效果 private void num_1_MouseDown(object sender, MouseEventArgs e) { num_1.Image = imageList1.Images[0]; } private void num_1_MouseUp(object sender, MouseEventArgs e) { num_1.Image = Properties.Resources.n_1; } private void num_2_MouseDown(object sender, MouseEventArgs e) { num_2.Image = imageList1.Images[1]; } private void num_2_MouseUp(object sender, MouseEventArgs e) { num_2.Image = Properties.Resources.n_2; } private void num_3_MouseDown(object sender, MouseEventArgs e) { num_3.Image = imageList1.Images[2]; } private void num_3_MouseUp(object sender, MouseEventArgs e) { num_3.Image = Properties.Resources.n_3; } private void num_4_MouseDown(object sender, MouseEventArgs e) { num_4.Image = imageList1.Images[3]; } private void num_4_MouseUp(object sender, MouseEventArgs e) { num_4.Image = Properties.Resources.n_4; } private void num_5_MouseDown(object sender, MouseEventArgs e) { num_5.Image = imageList1.Images[4]; } private void num_5_MouseUp(object sender, MouseEventArgs e) { num_5.Image = Properties.Resources.n_5; } private void num_6_MouseDown(object sender, MouseEventArgs e) { num_6.Image = imageList1.Images[5]; } private void num_6_MouseUp(object sender, MouseEventArgs e) { num_6.Image = Properties.Resources.n_6; } private void num_7_MouseDown(object sender, MouseEventArgs e) { num_7.Image = imageList1.Images[6]; } private void num_7_MouseUp(object sender, MouseEventArgs e) { num_7.Image = Properties.Resources.n_7; } private void num_8_MouseDown(object sender, MouseEventArgs e) { num_8.Image = imageList1.Images[7]; } private void num_8_MouseUp(object sender, MouseEventArgs e) { num_8.Image = Properties.Resources.n_8; } private void num_9_MouseDown(object sender, MouseEventArgs e) { num_9.Image = imageList1.Images[8]; } private void num_9_MouseUp(object sender, MouseEventArgs e) { num_9.Image = Properties.Resources.n_9; } private void num_0_MouseDown(object sender, MouseEventArgs e) { num_0.Image = imageList1.Images[9]; } private void num_0_MouseUp(object sender, MouseEventArgs e) { num_0.Image = Properties.Resources.n_0; } private void back_MouseDown(object sender, MouseEventArgs e) { back.Image = imageList1.Images[10]; } private void back_MouseUp(object sender, MouseEventArgs e) { back.Image = Properties.Resources.backspace; } #endregion #region 系统调用 public static class Win32API { [DllImport("user32.dll", EntryPoint = "SendMessageW")] public static extern int SendMessage( int hwnd, int wMsg, int wParam, int lParam); [DllImport("user32.dll", EntryPoint = "PostMessageW")] public static extern int PostMessage( int hwnd, int wMsg, int wParam, int lParam); [DllImport("user32.dll")] public static extern int GetForegroundWindow(); [DllImport("user32.dll")] public static extern int GetFocus(); [DllImport("user32.dll")] public static extern int AttachThreadInput( int idAttach, int idAttachTo, int fAttach); [DllImport("user32.dll")] public static extern int GetWindowThreadProcessId( int hwnd, int lpdwProcessId); [DllImport("kernel32.dll")] public static extern int GetCurrentThreadId(); public const int WM_MOUSEACTIVATE = 0x21; public const int WM_KEYDOWN = 0x100; public const int MA_NOACTIVATE = 3; public const int WS_EX_NOACTIVATE = 0x8000000; } #endregion private void AttachThreadInput(bool b) { //设置线程亲和,附到前台窗口所在线程,只有在线程内才可以获取线程内控件的焦点 //线程亲和: AttachThreadInput(目标线程标识, 当前线程标识, 非零值关联) 零表示取消 //窗口所在的线程的标识: GetWindowThreadProcessId(窗体句柄, 这里返回进程标识) //当前的前台窗口的句柄: GetForegroundWindow() //当前程序所在的线程标识: GetCurrentThreadId() Win32API.AttachThreadInput( Win32API.GetWindowThreadProcessId( Win32API.GetForegroundWindow(), 0), Win32API.GetCurrentThreadId(), Convert.ToInt32(b)); } /// <summary> /// 数字键点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void NumClick(object sender, EventArgs e) { sp.Play(); AttachThreadInput(true); //设置线程亲和的关联 int getFocus = Win32API.GetFocus(); //o为object类型,使用强制转换成vkButton char keyvalue = ((PictureBox)sender).Name.Substring(4, 1).ToCharArray()[0]; //向前台窗口发送按键消息 Win32API.PostMessage(getFocus, Win32API.WM_KEYDOWN, (byte)keyvalue, 0); AttachThreadInput(false); //取消线程亲和的关联 } protected override void WndProc(ref Message m) { base.WndProc(ref m); //若在窗体上产生鼠标点击事件的消息则使消息返回值标记为不激活 //程序内部的窗口切换仅需返回 MA_NOACTIVATE 即可,若相对其它 //的程序窗口切换时 还需要设置 WS_EX_NOACTIVATE 样式 if (m.Msg == Win32API.WM_MOUSEACTIVATE) m.Result = (IntPtr)Win32API.MA_NOACTIVATE; //MA_ACTIVATE 激活窗体，但不删除鼠标消息。 //MA_NOACTIVATE 不激活窗体，也不删除鼠标消息。 //MA_ACTIVATEANDEAT 激活窗体，删除鼠标消息。 //MA_NOACTIVATEANDEAT 不激活窗体，但删除鼠标消息。 } private const int WS_EX_TOOLWINDOW = 0x00000080; private const int WS_EX_NOACTIVATE = 0x08000000; protected override CreateParams CreateParams { get { CreateParams cp = base.CreateParams; cp.ExStyle |= (WS_EX_NOACTIVATE | WS_EX_TOOLWINDOW); cp.Parent = IntPtr.Zero; // Keep this line only if you used UserControl return cp; //return base.CreateParams; } } //protected override CreateParams CreateParams //{ // get // { // CreateParams cp = base.CreateParams; // //为窗体样式添加不激活标识 // cp.ExStyle = Win32API.WS_EX_NOACTIVATE; // return cp; // } //} //关闭键盘 private void close_Click(object sender, EventArgs e) { _show = false; sp.Play(); this.Hide(); } //退格操作 private void back_Click(object sender, EventArgs e) { sp.Play(); AttachThreadInput(true); //设置线程亲和的关联 int getFocus = Win32API.GetFocus(); //向前台窗口发送按键消息 Win32API.PostMessage(getFocus, Win32API.WM_KEYDOWN, 0X08, 0); AttachThreadInput(false); //取消线程亲和的关联 } public void btnshow() { if (!_show) { this.Show(); _show = true; } } private void KeyB_FormClosing(object sender, FormClosingEventArgs e) { e.Cancel = true; } }}