实例介绍
【实例简介】
【实例截图】
【核心代码】
操作类
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace SmartKernel.Net
{
public partial class MonitorClient : Form
{
#region 字段
private bool Initialized = false;
private bool InProgress = false;
private System.Threading.Thread MonitorThread = null;
#endregion
#region 构造函数
public MonitorClient()
{
InitializeComponent();
Application.Idle = new EventHandler(Application_Idle);
}
#endregion
#region 应用程序空闲状态的处理过程
void Application_Idle(object sender, EventArgs e)
{
this.checkBox1.Enabled = this.textBox1.Text.Trim().Length > 0;
this.checkBox2.Enabled = this.checkBox1.Enabled;
}
#endregion
#region 监控开始
private void Monitor()
{
while (true)
{
this.monitorUserControl1.UpdateDisplay();
System.Threading.Thread.Sleep(200);
}
}
#endregion
#region 监视
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (((CheckBox)sender).Checked)
{
if (!Initialized)
{
Cursor = Cursors.WaitCursor;
this.monitorUserControl1.Initialize(this.textBox1.Text.Trim());
Initialized = true;
Cursor = Cursors.Arrow;
}
InProgress = true;
MonitorThread = new System.Threading.Thread(new System.Threading.ThreadStart(Monitor));
MonitorThread.Start();
}
else
{
InProgress = false;
MonitorThread.Abort();
}
}
#endregion
#region 控制
private void checkBox2_CheckedChanged(object sender, EventArgs e)
{
this.monitorUserControl1.SetControl(((CheckBox)sender).Checked);
}
#endregion
}
}
通信类
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.IO;
using System.Net.Sockets;
using System.Threading;
namespace SmartKernel.Net
{
public class Monitor : System.MarshalByRefObject
{
#region 常量
private const uint MOUSEEVENTF_MOVE = 0x0001; //系统消息:鼠标移动
private const uint MOUSEEVENTF_LEFTDOWN = 0x0002; //系统消息:左键按下
private const uint MOUSEEVENTF_LEFTUP = 0x0004; //系统消息:左键放开
private const uint MOUSEEVENTF_RIGHTDOWN = 0x0008; //系统消息:右键按下
private const uint MOUSEEVENTF_RIGHTUP = 0x0010; //系统消息:右键放开
private const uint MOUSEEVENTF_MIDDLEDOWN = 0x0020; //系统消息:中间健按下
private const uint MOUSEEVENTF_MIDDLEUP = 0x0040; //系统消息:中间健放开
private const uint MOUSEEVENTF_WHEEL = 0x0800; //系统消息:滚动滚轮
private const uint MOUSEEVENTF_ABSOLUTE = 0x8000; //指定鼠标坐标系统中的一个绝对位置
private const uint KEYEVENTF_EXTENDEDKEY = 0x0001; //一个扩展键
private const uint KEYEVENTF_KEYUP = 0x0002; //模拟松开一个键
private const uint INPUT_MOUSE = 0; //模拟鼠标事件
private const uint INPUT_KEYBOARD = 1; //模拟键盘事件
private static byte[] PreviousBitmapBytes = null;
#endregion
#region 构造函数
public Monitor()
{
}
#endregion
#region Win32API方法包装
[DllImport("user32.dll")]
private static extern IntPtr GetDesktopWindow();
[DllImport("gdi32.dll")]
private static extern bool BitBlt
(
IntPtr hdcDest, //指向目标设备环境的句柄
int nXDest, //指定目标矩形区域克上角的X轴逻辑坐标
int nYDest, //指定目标矩形区域左上角的Y轴逻辑坐标
int nWidth, //指定源和目标矩形区域的逻辑宽度
int nHeight, //指定源和目标矩形区域的逻辑高度
IntPtr hdcSrc, //指向源设备环境句柄
int nXSrc, //指定源矩形区域左上角的X轴逻辑坐标
int nYSrc, //指定源矩形区域左上角的Y轴逻辑坐标
System.Int32 dwRop //指定光栅操作代码。这些代码将定义源矩形区域的颜色数据,如何与目标矩形区域的颜色数据组合以完成最后的颜色
);
[DllImport("user32.dll")]
private static extern int GetSystemMetrics(int nIndex);
[DllImport("user32.dll")]
private static extern uint SendInput
(
uint nInputs,
ref INPUT input,
int cbSize
);
[DllImport("user32.dll")]
private static extern void SetCursorPos(int x, int y);
#endregion
#region Win32结构包装
struct MOUSE_INPUT
{
public uint dx;
public uint dy;
public uint mouseData;
public uint dwFlags;
public uint time;
public uint dwExtraInfo;
}
struct KEYBD_INPUT
{
public ushort wVk;
public ushort wScan;
public uint dwFlags;
public uint time;
public uint dwExtraInfo;
}
[StructLayout(LayoutKind.Explicit)]
struct INPUT
{
[FieldOffset(0)]
public uint type;
[FieldOffset(4)]
public MOUSE_INPUT mi;
[FieldOffset(4)]
public KEYBD_INPUT ki;
}
#endregion
#region 获得屏幕的大小
public Size GetDesktopBitmapSize()
{
return new Size(GetSystemMetrics(0), GetSystemMetrics(1));
}
#endregion
#region 模拟鼠标、键盘操作
public void PressOrReleaseMouseButton(bool Press, bool Left, int X, int Y)
{
INPUT input = new INPUT();
input.type = INPUT_MOUSE;
input.mi.dx = (uint) X;
input.mi.dy = (uint) Y;
input.mi.mouseData = 0;
input.mi.dwFlags = 0;
input.mi.time = 0;
input.mi.dwExtraInfo = 0;
if (Left)
{
input.mi.dwFlags = Press ? MOUSEEVENTF_LEFTDOWN : MOUSEEVENTF_LEFTUP;
}
else
{
input.mi.dwFlags = Press ? MOUSEEVENTF_RIGHTDOWN : MOUSEEVENTF_RIGHTUP;
}
SendInput(1, ref input, Marshal.SizeOf(input));
}
public void MoveMouse(int x, int y)
{
SetCursorPos(x, y);
}
public void SendKeystroke(byte VirtualKeyCode, byte ScanCode, bool KeyDown, bool ExtendedKey)//发送键盘事件
{
INPUT input = new INPUT();
input.type = INPUT_KEYBOARD;
input.ki.wVk = VirtualKeyCode;
input.ki.wScan = ScanCode;
input.ki.dwExtraInfo = 0;
input.ki.time = 0;
if (!KeyDown)
{
input.ki.dwFlags |= KEYEVENTF_KEYUP;
}
if (ExtendedKey)
{
input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
}
SendInput(1, ref input, Marshal.SizeOf(input));
}
#endregion
#region 获得屏幕截图
private Bitmap GetDesktopBitmap()
{
Size DesktopBitmapSize = GetDesktopBitmapSize();
Graphics Graphic = Graphics.FromHwnd(GetDesktopWindow());//从窗口的指定句柄创建新的 Graphics 对象
Bitmap MemImage = new Bitmap(DesktopBitmapSize.Width, DesktopBitmapSize.Height, Graphic);//生成图像
Graphics MemGraphic = Graphics.FromImage(MemImage);//从指定的 Image 对象创建新 Graphics 对象
IntPtr dc1 = Graphic.GetHdc();//获取与此 Graphics 对象关联的设备上下文的句柄
IntPtr dc2 = MemGraphic.GetHdc();
BitBlt(dc2, 0, 0, DesktopBitmapSize.Width, DesktopBitmapSize.Height, dc1, 0, 0, 0xCC0020);
Graphic.ReleaseHdc(dc1);//释放通过以前对此 Graphics 对象的 GetHdc 方法的调用获得的设备上下文句柄
MemGraphic.ReleaseHdc(dc2);
Graphic.Dispose();
MemGraphic.Dispose();
return MemImage;
}
#endregion
#region 判断两个图的二进制数组是否相同
private static bool BitmapsAreEqual(ref byte[] a, ref byte[] b)
{
bool Result = (a != null && b != null && a.Length == b.Length);
if (Result)
{
for (int i = 0; Result && i < a.Length; i )
{
if (a[i] != b[i])
{
Result = false;
}
}
}
return Result;
}
#endregion
#region 获得图像二进制的数组
public byte[] GetDesktopBitmapBytes()
{
Bitmap CurrentBitmap = GetDesktopBitmap();
MemoryStream MS = new MemoryStream();
CurrentBitmap.Save(MS, ImageFormat.Jpeg);//将图片写入流
CurrentBitmap.Dispose();
MS.Seek(0, SeekOrigin.Begin);
byte[] CurrentBitmapBytes = new byte[MS.Length];
int NumBytesToRead = (int) MS.Length;
int NumBytesRead = 0;
while (NumBytesToRead > 0)
{
int n = MS.Read(CurrentBitmapBytes, NumBytesRead, NumBytesToRead);
if (n == 0)
{
break;
}
NumBytesRead = n;
NumBytesToRead -= n;
}
MS.Close();
byte[] Result = new byte[0];
if (!BitmapsAreEqual(ref CurrentBitmapBytes, ref PreviousBitmapBytes))
{
Result = CurrentBitmapBytes;
PreviousBitmapBytes = CurrentBitmapBytes;
}
return Result;
}
#endregion
}
}
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