寒假总结(2)鼠标键盘系统的基本操作

开通黄钻寒假总结（2）鼠标键盘系统的基本操作usingSystem;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

usingSystem.Data;

usingSystem.Drawing;

usingSystem.Linq;

usingSystem.Text;

usingSystem.Windows.Forms;namespace鼠标

{

publicpartialclassForm1:Form

{

MessageFiltermf=newMessageFilter();

publicForm1()

{

InitializeComponent();

}

privatevoidForm1_MouseDown(objectsender,MouseEventArgse)

{//获取鼠标点击时位置XY坐标

this.label1.Text=e.X.ToString();

this.label2.Text=e.Y.ToString();

}

privatevoidtextBox1_MouseDown(objectsender,MouseEventArgse)

{//获取鼠标操作操作

stringstr=textBox1.Text;

if(e.Button==MouseButtons.Right)

{

textBox1.Text+="鼠标右击点下";

}

if(e.Button==MouseButtons.Left)

{

textBox1.Text+="鼠标左击点下";

}

if(e.Button==MouseButtons.Middle)

{

textBox1.Text+="鼠标中间点下";

}

if(e.Button==MouseButtons.None)

{

textBox1.Text+="未按鼠标";

}

}

privatevoidForm1_Load(objectsender,EventArgse)

{

//添加消息筛选器以便在向目标传送Windows消息时监视这些消息

Application.AddMessageFilter(mf);

}

//从窗体中移除一个消息筛选器

privatevoidFrm_Main_FormClosing(objectsender,FormClosingEventArgse)

{

//从应用程序的消息泵移除一个消息筛选器

Application.RemoveMessageFilter(mf);

}

//方法一，重写WndProc虚方法，与方法二不可同时存在

protectedoverridevoidWndProc(refMessagem)

{

switch(m.Msg)//判断系统消息的ID号

{

case513:

MessageBox.Show("单击了鼠标左键！","系统信息");

m.Result=(IntPtr)0;//为了响应消息处理而向Windows返回的值

break;

case516:

MessageBox.Show("单击了鼠标右键！","系统信息");

m.Result=(IntPtr)0;//为了响应消息处理而向Windows返回的值

break;

default:

base.WndProc(refm);

break;

}

}

}

//方法二，实现IMessageFilter接口，从而获得Windows消息，与方法一不可同时存在

publicclassMessageFilter:IMessageFilter

{

publicboolPreFilterMessage(refMessagemessage)

{

switch(message.Msg)//判断系统消息的ID号

{

this.Cursor=newCursor(Cursor.Current.Handle);//创建cursor对象

Cursor.Position=newPoint(Cursor.Position.X,Cursor.Position.Y);//设置鼠标位置

Cursor.Clip=newRectangle(this.Location,this.Size);//设置鼠标的活动区域

}

privatevoidbutton2_Click(objectsender,EventArgse)

{

Screen[]screens=Screen.AllScreens;//获取显示的数组

this.Cursor=newCursor(Cursor.Current.Handle);//创建Cursor对象

Cursor.Clip=screens[0].Bounds;//接触对鼠标活动区域的限制

}

publicboolG_OnMouseDown=false;//标识，用来控制画图

publicPointlastPoint=Point.Empty;//定义绘图开始点

publicPenpen;//声明画笔

publicGraphicsgraphics;//声明绘图对象

privatevoidForm2_MouseMove(objectsender,MouseEventArgse)

{

if(lastPoint.Equals(Point.Empty))//判断绘图开始点是否为空

{

lastPoint=newPoint(e.X,e.Y);//记录鼠标当前位置

}

if(G_OnMouseDown)//开始绘图

{

PointcruuPoint=newPoint(e.X,e.Y);//获取鼠标当前位置

graphics.DrawLine(pen,cruuPoint,lastPoint);//绘图

}

lastPoint=newPoint(e.X,e.Y);//记录鼠标当前位置

}

privatevoidForm2_MouseUp(objectsender,MouseEventArgse)

{

G_OnMouseDown=false;//开始绘图标识设置为false

}

privatevoidForm2_MouseDown(objectsender,MouseEventArgse)

{

G_OnMouseDown=true;//开始绘图标识设置为true````

}

}

}

usingSystem;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

usingSystem.Data;

usingSystem.Drawing;

usingSystem.Linq;

usingSystem.Text;

usingSystem.Windows.Forms;namespace键盘

{

publicpartialclassForm1:Form

{

publicForm1()

{

InitializeComponent();

}

privatevoidtextBox1_KeyDown(objectsender,KeyEventArgse)

{

/*if((e.Control==true)&&(e.KeyCode==Keys.A))

{

MessageBox.Show("你按下了ctrl+A","系统",MessageBoxButtons.OKCancel,MessageBoxIcon.Warning);

}*/

}

privatevoidForm1_Load(objectsender,EventArgse)

{

Form1f=newForm1();

f.KeyPreview=true;

}

///<summary>

///移动窗体

///</summary>

///<paramname="sender"></param>

///<paramname="e"></param>

privatevoidForm1_KeyDown(objectsender,KeyEventArgse)

{

Pointpoint=this.Location;

switch(e.KeyData)//判断按键类型

{

caseKeys.Up:

point.Y-=2;

break;

case

Keys.Down:

point.Y+=2;

break;

caseKeys.Right:

point.X+=2;

break;

caseKeys.Left:

point.X-=2;

break;

caseKeys.Escape:

this.Close();

break;

default:break;

}

this.Location=point;

}

/*

privatevoidForm1_KeyDown(objectsender,KeyEventArgse)

{

if(e.Alt&&e.KeyCode==Keys.F4)//键值115

{

e.Handled=true;//不执行操作

}

if(e.KeyCode==Keys.F1)

{

MessageBox.Show("王延领按下了f1","提示");

}

}

privatevoidForm1_KeyUp(objectsender,KeyEventArgse)

{

if(e.KeyData==Keys.Escape)//按下esc时

{

if(MessageBox.Show("是否关闭程序","提示信息",MessageBoxButtons.YesNo)==DialogResult.Yes)

{

Application.Exit();

}

}

}

privatevoidrichTextBox1_KeyDown(objectsender,KeyEventArgse)

{

if(e.Control&&e.KeyCode==Keys.V)

{

e.Handled=true;//屏蔽CRTRL+V

}

if(e.Control&&e.KeyCode==Keys.X||e.KeyCode==Keys.C)

{

e.Handled=true;

}

}

privatevoidtextBox1_KeyPress(objectsender,KeyPressEventArgse)

{//释放后发生事件

if(e.KeyChar==13)

{

e.Handled=true;//关闭敲回车键嘀的声音

}

}

///<summary>

///输入法的打开与关闭

///</summary>

///<paramname="sender"></param>

///<paramname="e"></param>

privatevoidbutton1_Click(objectsender,EventArgse)

{

this.textBox1.ImeMode=ImeMode.Off;//关闭输入法

}

privatevoidbutton2_Click(objectsender,EventArgse)

{

this.textBox1.ImeMode=ImeMode.On;

}

privatevoidForm1_Load(objectsender,EventArgse)

{

Form1f=newForm1();

f.KeyPreview=true;//接受案件控件

}

/*

[System.Runtime.InteropServices.DllImport("user32",EntryPoint="GetKeyState")]//重写Api

publicstaticexternintGetKeyState(intintkey);

privatevoidbutton1_Click(objectsender,EventArgse)

{

stringstr="判断numlockhrcapslock键是否锁定：\n";

intintnumlock=GetKeyState(144);//判断numlock键

if(intnumlock==0)

{

str+="numlock未锁定\n";

}

else{

str+="numlock已锁定\n";

}

intintcapslock=GetKeyState(20);

if(intcapslock==0)

{

str+="caplock未锁定\n";

}

else

{

str+="caplock已锁定\n";

}

MessageBox.Show(str,"判断");

}

privatevoidtextBox1_KeyDown_1(objectsender,KeyEventArgse)

{

if(e.KeyValue==13)//如果键值为13（回车键）

{

SendKeys.Send("{TAB}");//发送TAB命令

}

}

privatevoidtextBox2_KeyDown(objectsender,KeyEventArgse)

{

if(e.KeyValue==13)

{

SendKeys.Send("{TAB}");

}

}*/

}

}

usingSystem;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

usingSystem.Data;

usingSystem.Drawing;

usingSystem.Linq;

usingSystem.Text;

usingSystem.Windows.Forms;namespace系统

{

publicpartialclassForm1:Form

{

publicForm1()

{

InitializeComponent();

}

privatevoidForm1_Load(objectsender,EventArgse)

{

label1.Text="当前时间是："+DateTime.Now.ToString();//获取现在时间

label2.Text="当前系统目录"+Environment.SystemDirectory;

label3.Text="计算机名称："+Environment.MachineName;

label4.Text="当前运行目录："+Environment.CurrentDirectory;

label5.Text="系统版本号："+Environment.OSVersion.VersionString;

textBox1.Text=(Environment.TickCount/1000).ToString()+"秒";//获取启动后经过的时间

}

privatevoidtimer1_Tick(objectsender,EventArgse)

{

textBox1.Text=(Environment.TickCount/1000).ToString()+"秒";

}

}

}

usingSystem;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

usingSystem.Data;

usingSystem.Drawing;

usingSystem.Linq;

usingSystem.Text;

usingSystem.Windows.Forms;

usingSystem.Collections;

namespace获取系统环境变量

{

publicpartialclassForm1:Form

{

publicForm1()

{

InitializeComponent();

}

privatevoidForm1_Load(objectsender,EventArgse)

{

listView1.View=View.Details;//设置控件显示方式

listView1.GridLines=true;//是否显示网格

listView1.Columns.Add("环境变量",150,HorizontalAlignment.Left);//添加列标头

listView1.Columns.Add("变量值",150,HorizontalAlignment.Left);//添加列标头

ListViewItemmyItem;//创建ListViewItem对象

//获取系统环境变量及对应的变量值，并显示在ListView控件中

foreach(DictionaryEntryDEntryinEnvironment.GetEnvironmentVariables())

{

myItem=newListViewItem(DEntry.Key.ToString(),0);//创建ListViewItem对象

myItem.SubItems.Add(DEntry.Value.ToString());//添加子项集合

listView1.Items.Add(myItem);//将子项集合添加到控件中

}

}

}

}

usingSystem;

usingSystem.Collections.Generic;

usingSystem.ComponentModel;

usingSystem.Data;

usingSystem.Drawing;

usingSystem.Linq;

usingSystem.Text;

usingSystem.Windows.Forms;namespace获取所有逻辑分区

{

publicpartialclassForm1:Form

{

publicForm1()

{

InitializeComponent();

}

privatevoidbutton1_Click(objectsender,EventArgse)

{

listFolders(comboBox1);

}

publicvoidlistFolders(ComboBoxtscb)//获取本地磁盘目录

{

string[]logicdrives=System.IO.Directory.GetLogicalDrives();//获取本地逻辑分区的数组

for(inti=0;i<logicdrives.Length;i++)//遍历数组

{

tscb.Items.Add(logicdrives[i]);//将数组中的项目添加到ComboBox控件中

tscb.SelectedIndex=0;//设置第一项被选中

}

}

privatevoidcomboBox1_SelectedIndexChanged(objectsender,EventArgse)

{

try

{

System.IO.DriveInfo[]drive=System.IO.DriveInfo.GetDrives();//获取所有磁盘驱动

for(inti=0;i<drive.Length;i++)//遍历数组

{

if(comboBox1.SelectedItem.ToString()==drive[i].Name)//判断遍历到的想是否与下拉框中的项相同

{

label1.Text="总空间"+drive[i].TotalSize/1024/1024/1024+"G";

label2.Text="剩余空间"+drive[i].TotalFreeSpace/1024/1024/1024+"G";

label3.Text="已用空间"+(drive[i].TotalSize-drive[i].TotalFreeSpace)/1024/1024/1024+"G";

}

if(comboBox1.SelectedItem.ToString()==drive[i].Name)

{

if(drive[i].IsReady)