以下是代码片段： #region C#截屏
/// <summary>
/// 名称：GetImage
/// 功能：截图函数
/// 编写时间：2008-12-11
/// </summary>
private void GetImage()//打印屏幕
{
try
{
string tempImagePath = Application.StartupPath;
string temp = tempImagePath + "\\CurrentScreenImage";
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();
MessageBox.Show("截图成功！");
}
catch
{
MessageBox.Show("截图失败！");
}
}
#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
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