数字软键盘

没有键盘的情况下，实现鼠标操作输入数字、或只有触摸显示器情况下使用

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

namespace KeyBoard
{
    public partial class Form1 : Form
    {   
        /*
        protected override CreateParams CreateParams
        {
            get
            {
                CreateParams cp = base.CreateParams;
                cp.Exstyle |= （int）0x08000000L;
                return cp;
            }
        }
         * */
        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; 
                return cp;
            }
        }
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button0_Click（object sender EventArgs e）
        {
            SendKeys.Send（“0“）;
        }

        private void button1_Click（object sender EventArgs e）
        {
            SendKeys.Send（“1“）;
        }

        private void button2_Click（object sender EventArgs e）
        {
            SendKeys.Send（“2“）;
        }

        private void button3_Click（object sender EventArgs e）
        {
            SendKeys.Send（“3“）;
        }

        private void button4_Click（object sender EventArgs e）
        {
            SendKeys.Send（“4“）;
        }

        private void button5_Click（object sender EventArgs e）
        {
            SendKeys.Send（“5“）;
        }

        private void button6_Click（object sender EventArgs e）
        {
            SendKeys.Send（“6“）;
        }

        private void button7_Click（object sender EventArgs e）
        {
            SendKeys.Send（“7“）;
        }

        private void button8_Click（object sender EventArgs e）
        {
            SendKeys.Send（“8“）;
        }

        private void button9_Click（object sender EventArgs e）
        {
            SendKeys.Send（“9“）;
        }
        //.
        private void button11_Click（object sender EventArgs e）
        {
            SendKeys.Send（“.“）;
        }
        //退格
        private void button12_Click（object sender EventArgs e）
        {
            SendKeys.Send（“{BKSP}“）;
        }

    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        490  2018-04-04 21:59  KeyBoard\KeyBoard\bin\Debug\KeyBoard.vshost.exe.manifest

     文件       2566  2018-04-04 21:59  KeyBoard\KeyBoard\Form1.cs

     文件      10778  2018-04-04 21:59  KeyBoard\KeyBoard\Form1.Designer.cs

     文件       5817  2018-04-04 21:59  KeyBoard\KeyBoard\Form1.resx

     文件       3729  2018-04-04 21:59  KeyBoard\KeyBoard\KeyBoard.csproj

     文件       1451  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6890  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        834  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.csproj.FileListAbsolute.txt

     文件        975  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.csproj.GenerateResource.Cache

     文件       2209  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.csprojResolveAssemblyReference.cache

     文件      11776  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.exe

     文件        180  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.Form1.resources

     文件      28160  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.pdb

     文件        180  2018-04-04 21:59  KeyBoard\KeyBoard\obj\Debug\KeyBoard.Properties.Resources.resources

     文件        489  2018-04-04 21:59  KeyBoard\KeyBoard\Program.cs

     文件       1354  2018-04-04 21:59  KeyBoard\KeyBoard\Properties\AssemblyInfo.cs

     文件       2868  2018-04-04 21:59  KeyBoard\KeyBoard\Properties\Resources.Designer.cs

     文件       5612  2018-04-04 21:59  KeyBoard\KeyBoard\Properties\Resources.resx

     文件       1095  2018-04-04 21:59  KeyBoard\KeyBoard\Properties\Settings.Designer.cs

     文件        249  2018-04-04 21:59  KeyBoard\KeyBoard\Properties\Settings.settings

     文件        914  2018-04-04 21:59  KeyBoard\KeyBoard.sln

     目录          0  2018-04-04 22:00  KeyBoard\KeyBoard\obj\Debug\TempPE

     目录          0  2018-04-04 22:00  KeyBoard\KeyBoard\bin\Debug

     目录          0  2018-04-04 22:00  KeyBoard\KeyBoard\obj\Debug

     目录          0  2018-04-04 21:59  KeyBoard\KeyBoard\bin

     目录          0  2018-04-04 21:59  KeyBoard\KeyBoard\obj

     目录          0  2018-04-04 21:59  KeyBoard\KeyBoard\Properties

     目录          0  2018-04-04 21:59  KeyBoard\KeyBoard

     目录          0  2018-04-04 21:59  KeyBoard

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............此处省略2个文件信息