- 1. StreamWriter - 文件写入类
- StreamWriter s = new StreamWriter(address + "/Menu.ini", true);
- s.WriteLine(openFileDialog1.FileName);
- s.Flush();
- s.Close();
- 2. StreamReader - 文件读取类
- StreamReader sr = new StreamReader(address + "/Menu.ini");
- while (sr.Peek()>=0)
- {
- string str = sr.ReadLine();
- }
- sr.Close();
- 3. Image - 图像类
- Image p = Image.FromFile("/背景图片.jpg");
- Form f = new Form(); // 创建MID窗口
- f.MdiParent = this; // 设置父窗口
- f.BackgroundImage = p; // 设置MDI窗口的背景图
- f.Show(); // 显示MDI窗口
- 4. Bitmap - 位图类
- // 创建位图, Bitmap类继承于Image类
- Bitmap bit;
- bit = new Bitmap("heart.bmp");
- bit.MakeTransparent(Color.White); // 设置透明色
- protected override void OnPaint(PaintEventArgs e)
- {
- // 在窗口上画图
- e.Graphics.DrawImage((Image)bit, new Point(0, 0));
- }
- 5. this.Opacity - 控件的不透明度
- // 控制控件透明程度,很有用。
- 6. C#中导入Dll文件中的API
- [System.Runtime.InteropServices.DllImportAttribute("user32.dll")]
- public static extern bool FlashWindow(IntPtr handle, bool bInvert);
- 7. 隐藏标题栏
- this.ControlBox = false;
- 8. 窗口始终处于最上面
- this.TopMost = ture;
- 9. Screen - 桌面类
- Screen.PrimaryScreen.WorkingArea.Height // 桌面的高
- Screen.PrimaryScreen.WorkingArea.Width // 桌面的宽
- Screen.PrimaryScreen.BitsPerPixel // 桌面的位深
- 10. 基本绘图
- Graphics graphics;
- Pen myPen = new Pen(Color.Blue, 2);
- // 画线
- graphics = this.CreateGraphics();
- graphics.DrawLine(myPen, 30, 60, 150, 60);
- // 画矩形
- graphics = this.CreateGraphics();
- graphics.DrawRectangle(myPen, 30, 80, 120, 50);
- // 画椭圆
- graphics = this.CreateGraphics();
- Rectangle myRectangle = new Rectangle(160, 70, 100, 60);
- graphics.DrawEllipse(myPen, myRectangle);
- 11. 获得鼠标在窗口中的坐标
- Cursor.Clip = new Rectangle(this.Location, this.Size);
- label1.Text = "当前鼠标的位置为:" + Cursor.Position;
- 12. 判断键盘
- protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
- {
- const int WM_KEYDOWN = 0x100;
- const int WM_SYSKEYDOWN = 0x104;
- string strInfo = string.Empty;
- if ((msg.Msg == WM_KEYDOWN) || (msg.Msg == WM_SYSKEYDOWN))
- {
- switch (keyData)
- {
- case Keys.Down:
- strInfo = "Down Key";
- break;
- case Keys.Up:
- strInfo = "Up Key";
- break;
- case Keys.Left:
- strInfo = "Left Key";
- break;
- case Keys.Right:
- strInfo = "Right Key";
- break;
- case Keys.Home:
- strInfo = "Home Key";
- break;
- case Keys.End:
- strInfo = "End Key";
- break;
- }
- MessageBox.Show(strInfo, "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
- }
- return base.ProcessCmdKey(ref msg, keyData);
- }
- 13. 控制远程计算机
- //首先添加对 System.Management的引用
- private void CloseComputer(string strname,string strpwd,string ip,string doinfo)
- {
- ConnectionOptions op = new ConnectionOptions ( ) ;
- op.Username =strname;//''或者你的帐号(注意要有管理员的权限)
- op.Password = strpwd; //''你的密码
- ManagementScope scope = new ManagementScope("////" + ip + "//root//cimv2:Win32_Service", op);
- try
- {
- scope.Connect ( ) ;
- System.Management.ObjectQuery oq = new System.Management.ObjectQuery ( "SELECT * FROM Win32_OperatingSystem" ) ;
- ManagementObjectSearcher query1 = new ManagementObjectSearcher (scope,oq) ;
- //得到WMI控制
- ManagementObjectCollection queryCollection1 = query1.Get ( ) ;
- foreach ( ManagementObject mobj in queryCollection1 )
- {
- string [ ] str= {""} ;
- mobj.InvokeMethod(doinfo, str);
- }
- MessageBox.Show("操作成功");
- }
- catch(Exception ey)
- {
- MessageBox.Show(ey.Message);
- //this.button1.PerformClick();
- }
- }
- // 重启远程计算机
- CloseComputer(this.textBox2.Text, this.textBox3.Text, this.textBox1.Text, "Reboot");
- // 关闭远程计算机
- CloseComputer(this.textBox2.Text, this.textBox3.Text, this.textBox1.Text, "Shutdown");
- 14. ping的使用
- Ping PingInfo = new Ping();
- PingOptions PingOpt = new PingOptions();
- PingOpt.DontFragment = true;
- string myInfo = "hyworkhyworkhyworkhyworkhyworkhywork";
- byte[] bufferInfo = Encoding.ASCII.GetBytes(myInfo);
- int TimeOut = 120;
- PingReply reply = PingInfo.Send(this.textBox1.Text, TimeOut, bufferInfo, PingOpt);
- if (reply.Status == IPStatus.Success)
- {
- this.textBox2.Text = reply.RoundtripTime.ToString();
- this.textBox3.Text = reply.Options.Ttl.ToString();
- this.textBox4.Text = (reply.Options.DontFragment ? "发生分段" : "没有发生分段");
- this.textBox5.Text = reply.Buffer.Length.ToString();
- }
- else
- {
- MessageBox.Show("无法Ping通");
- }
- 15. 检查文件是否存在
- public int CheckFileExit(string ObjFilePath)
- {
- if (File.Exists(ObjFilePath))
- return 0;
- else
- return -1;
- }
- //该片段来自于http://www.codesnippet.cn/detail/1905201512607.html
来源: http://www.codesnippet.cn/detail/1905201512607.html