Winform代码集
禁止除Ctrl+Alt+Del组合之外的所有输入，屏幕假死！
#region 禁止除Ctrl+Alt+Del组合之外的所有输入，屏幕 假死！
[DllImport("User32.dll")]
public static extern bool BlockInput(bool enabled); //为真是假死
#endregion
#region 运行本地屏保
private void RunScreenSaver()
{
String[] screenSavers = Directory.GetFiles(Environment.SystemDirectory, "*.scr");
if (screenSavers.Length > 0)
{// 启动获取到的第一个屏保
Process.Start(new ProcessStartInfo(screenSavers[0]));
}
}
#endregion
利用Dll屏蔽键盘del+ctrl+alt组合键
using System.Runtime.InteropServices;//命名空间
[DllImport(@"native.dll", EntryPoint = "FuckSysKey")]
private extern static bool FuckSysKey(bool enAble);
private void button1_Click(object sender, EventArgs e)
{
FuckSysKey(false);
}
private void button2_Click(object sender, EventArgs e)
{
FuckSysKey(true);
}
载取屏幕
private void GetImage()
{
try
{
string tempImagePath = Application.StartupPath;
string temp = tempImagePath + "//MonitorImage ";
Directory.CreateDirectory(@temp);
Image i = new Bitmap(this.Width, this.Height);
Graphics g = Graphics.FromImage(i);
g.CopyFromScreen(new Point(this.Location.X, this.Location.Y), new Point(0, 0), new Size(this.Width, this.Height));
i.Save(@temp + "//" + DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".jpg");
g.Dispose();
CommonClass.MessageBoxOK("截图成功！");
}
catch
{
CommonClass.MessageBoxNo("截图失败！");
}
}
#region ArrayList的示例应用
/// 方法名：DelArraySame
/// 功能： 删除数组中重复的元素
/// </summary>
/// <param name="TempArray">所要检查删除的数组</param>
/// <returns>返回数组</returns>
public string[] DelArraySame(string[] TempArray)
{
ArrayList nStr = new ArrayList();
for (int i = 0; i < TempArray.Length; i++)
{
if (!nStr.Contains(TempArray[i]))
{
nStr.Add(TempArray[i]);
}
}
string[] newStr = (string[])nStr.ToArray(typeof(string));
return newStr;
}
#endregion
#region 哈希表的简单示例
public void HashTableTest()
{
Hashtable ht = new Hashtable();
ht.Add("测试四", "测试四的值");
ht.Add("测试二", "测试二的值");
ht.Add("测试三", "测试三的值");
foreach (DictionaryEntry de in ht)
{
Response.Write("这是"+de.Key+" "+de.Value+"<br/>");
}
}
#endregion
#region 定义及遍历枚举值
public enum enumone
{
李先生,
许先生,
张小姐
}
public void test()
{
foreach (enumone st in System.Enum.GetValues(typeof(enumone)))
{
Response.Write(st+"<br/>");
}
}
#endregion
///命名空间
///using System.Runtime.InteropServices;
///using System.Diagnostics;
#region 注销、关闭、重启计算机
[DllImport("user32.dll", EntryPoint = "ExitWindowsEx", CharSet = CharSet.Ansi)]
//ExitWindowsEx 函数
private static extern int ExitWindowsEx(int uFlags, int dwReserved);
public void zhuxiao() //注销
{
ExitWindowsEx(0, 0);
}
public void guanji()//关机
{
try
{
Process.Start("Shutdown.exe", " -s -t 0");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void chongqi()//重启
{
try
{
Process.Start("shutdown.exe", " -r -t 0");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
#endregion
#region 关闭显示器
public const uint WM_SYSCOMMAND = 0x0112;
public const uint SC_MONITORPOWER = 0xF170;
[DllImport("user32")]
public static extern IntPtr SendMessage(IntPtr hWnd, uint wMsg, uint wParam, int lParam);
private void button1_Click(object sender, EventArgs e)
{
CloseLCD(sender, e);//关闭显示器
}
public void CloseLCD(object sender, EventArgs e)
{
SendMessage(this.Handle, WM_SYSCOMMAND, SC_MONITORPOWER, 2); // 2 为关闭显示器， －1则打开显示器
}
#endregion
#region 打开关闭光驱
/// <summary>
/// 类构造方法中加//mciSendString("set cdaudio door open", null, 0, IntPtr.Zero);
/// </summary>
private bool CDOpen = true;
[System.Runtime.InteropServices.DllImport("winmm.dll", EntryPoint = "mciSendStringA")]
protected static extern int mciSendString(string lpstrCommand, StringBuilder lpstrReturnString, int uReturnLength, IntPtr hwndCallback);
private void button1_Click(object sender, EventArgs e)
{
mciSendString("set cdaudio door open", null, 0, IntPtr.Zero);
if (CDOpen == false)
{
mciSendString("set cdaudio door open", null, 0, IntPtr.Zero);
CDOpen = true;
this.button1.Text = "关闭光驱";
}
else
{
mciSendString("set cdaudio door closed", null, 0, IntPtr.Zero);
CDOpen = false;
this.button1.Text = "打开光驱";
}
}
#endregion
#region 设置系统时间 (需引用System.Runtime.InteropServices;)
[DllImport("kernel32.dll")]
private static extern bool SetLocalTime(ref SYSTEMTIME time);
[StructLayout(LayoutKind.Sequential)]
private struct SYSTEMTIME
{
public short year;
public short month;
public short dayOfWeek;
public short day;
public short hour;
public short minute;
public short second;
public short milliseconds;
}
public static void SetDate(DateTime dt)
{
SYSTEMTIME st;
st.year = (short)dt.Year;
st.month = (short)dt.Month;
st.dayOfWeek = (short)dt.DayOfWeek;
st.day = (short)dt.Day;
st.hour = (short)dt.Hour;
st.minute = (short)dt.Minute;
st.second = (short)dt.Second;
st.milliseconds = (short)dt.Millisecond;
SetLocalTime(ref st);
}
#endregion
using System.Management; //需要在解决方案中引用System.Management.DLL文件
/// <summary>
/// 取CPU编号
/// </summary>
/// <returns></returns>
public static string GetCpuID()
{
try
{
ManagementClass mc = new ManagementClass("Win32_Processor");
ManagementObjectCollection moc = mc.GetInstances();
string strCpuID = null;
foreach (ManagementObject mo in moc)
{
strCpuID = mo.Properties["ProcessorId"].Value.ToString();
break;
}
return strCpuID;
}
catch
{
return "";
}
}
/// <summary>
/// 取第一块硬盘编号
/// </summary>
/// <returns></returns>
public static string GetHardDiskID()
{
try
{
ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");
string strHardDiskID = null;
foreach (ManagementObject mo in searcher.Get())
{
strHardDiskID = mo["SerialNumber"].ToString().Trim();
break;
}
return strHardDiskID;
}
catch
{
return "";
}
}
/// <summary>
/// 获取网卡MAC地址
/// </summary>
/// <returns></returns>
public static string GetNetCardMAC()
{
try
{
string stringMAC = "";
ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection MOC = MC.GetInstances();
foreach (ManagementObject MO in MOC)
{
if ((bool)MO["IPEnabled"] == true)
{
stringMAC += MO["MACAddress"].ToString();
}
}
return stringMAC;
}
catch
{
return "";
}
}
/// <summary>
/// 获取硬盘信息的代码
/// </summary>
/// <param name="drvID"></param>
/// <returns></returns>
public static string GetVolOf(string drvID)
{
try
{
const int MAX_FILENAME_LEN = 256;
int retVal = 0;
int a = 0;
int b = 0;
string str1 = null;
string str2 = null;
int i = GetVolumeInformation(drvID + @":/", str1, MAX_FILENAME_LEN, ref retVal, a, b, str2, MAX_FILENAME_LEN);
return retVal.ToString("x");
}
catch
{
return "";
}
}
/// <summary>
/// 获取当前网卡IP地址
/// </summary>
/// <returns></returns>
public static string GetNetCardIP()
{
try
{
string stringIP = "";
ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection MOC = MC.GetInstances();
foreach (ManagementObject MO in MOC)
{
if ((bool)MO["IPEnabled"] == true)
{
string[] IPAddresses = (string[])MO["IPAddress"];
if (IPAddresses.Length > 0)
{
stringIP = IPAddresses[0].ToString();
}
}
}
return stringIP;
}
catch
{
return "";
}
}
#region 调用注册表返回本地串口
/// <summary>
/// 串口函数(方法需调用注册表,串口编程所用类)
/// </summary>
/// 使用命名空间：
/// using System.Security;
/// using System.Security.Permissions;
/// <returns>返回此计算机串口数组</returns>
public static string[] GetPortNames()//
{
RegistryKey localMachine = null;
RegistryKey key2 = null;
string[] textArray = null;//这里有个判断，判断该注册表项是否存在
new RegistryPermission(RegistryPermissionAccess.Read, @"HKEY_LOCAL_MACHINE/HARDWARE/DEVICEMAP/SERIALCOMM").Assert();
try
{
localMachine = Registry.LocalMachine;
key2 = localMachine.OpenSubKey(@"HARDWARE/DEVICEMAP/SERIALCOMM", false);
if (key2 != null)
{
string[] valueNames = key2.GetValueNames();
textArray = new string[valueNames.Length];
for (int i = 0; i < valueNames.Length; i++)
{
textArray[i] = (string)key2.GetValue(valueNames[i]);
}
}
}
finally
{
if (localMachine != null)
{
localMachine.Close();
} if (key2 != null)
{
key2.Close();
}
CodeAccessPermission.RevertAssert();
} if (textArray == null)
{
textArray = new string[0];
}
return textArray;
}
#endregion
#region MDI子窗体实例化一次
/// <summary>
/// 名称：CheckChildOpenState
/// 功能：用子窗体的Name进行判断是否已实例化，如果存在则将他激活
/// </summary>
/// <param name="MdiForm">容器窗体</param>
/// <param name="ChildForm">子窗体</param>
public static void CheckChildOpenState(Form MdiForm, Form ChildForm)
{
foreach (Form tempChildForm in MdiForm.MdiChildren)
{
if (tempChildForm.Name == ChildForm.Name.ToString())
{
if (tempChildForm.WindowState == FormWindowState.Minimized)
{
tempChildForm.WindowState = FormWindowState.Normal;
}
tempChildForm.Activate();
return;
}
}
ChildForm.MdiParent = MdiForm;
ChildForm.Show();
}
#endregion
给DataGridVeiw行头加数字ID
private void DataGridVeiw1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
{
Rectangle rectangle = new Rectangle(e.RowBounds.Location.X, e.RowBounds.Location.Y, DataGridVeiw1.RowHeadersWidth - 4, e.RowBounds.Height);
TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(), DataGridVeiw1.RowHeadersDefaultCellStyle.Font, rectangle, DataGridVeiw1.RowHeadersDefaultCellStyle.ForeColor, TextFormatFlags.VerticalCenter | TextFormatFlags.Right);
}