怎样在C#中检测手势并控制IoT

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描述

步骤1:您需要的内容:

C#

硬件:

LattePanda(您可以

屏幕和触摸面板

软件

Arduino IDE

Visual Studio

步骤2:演示1:检测鼠标位置并单击事件

让我们执行项目步骤一步一步首先,请尝试检测是否按下了鼠标。因此,我们可以根据间隔来检测双击和三次单击。

这是一个简单的Windows Form应用程序。文本框将显示鼠标的X轴和Y轴。 您可以在PC上播放此演示。

操作方法播放演示1:

运行.exe并移动鼠标,软件将自动检测鼠标的位置。如果按下鼠标左键,文本框将显示该事件。

您可以在下面查看代码或在此处下载演示。如果要自己制作此演示,则需要在此处下载Visual Studio。 Open.sln文件,然后可以将其设置为自己的文件。

演示1代码:

using System;

using System.Drawing;

using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace Demo_mousehook_csdn

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

MouseHook mh;

private void Form1_Load(object sender, EventArgs e)

{

mh = new MouseHook();

mh.SetHook();

mh.MouseMoveEvent += mh_MouseMoveEvent;

mh.MouseClickEvent += mh_MouseClickEvent;

mh.MouseDownEvent += mh_MouseDownEvent;

mh.MouseUpEvent += mh_MouseUpEvent;

}

private void mh_MouseDownEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

richTextBox1.AppendText(“Left Button Press ”);

}

if (e.Button == MouseButtons.Right)

{

richTextBox1.AppendText(“Right Button Press ”);

}

}

private void mh_MouseUpEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

richTextBox1.AppendText(“Left Button Release ”);

}

if (e.Button == MouseButtons.Right)

{

richTextBox1.AppendText(“Right Button Release ”);

}

}

private void mh_MouseClickEvent(object sender, MouseEventArgs e)

{

//MessageBox.Show(e.X + “-” + e.Y);

if (e.Button == MouseButtons.Left)

{

string sText = “(” + e.X.ToString() + “,” + e.Y.ToString() + “)”;

label1.Text = sText;

}

}

private void mh_MouseMoveEvent(object sender, MouseEventArgs e)

{

int x = e.Location.X;

int y = e.Location.Y;

textBox1.Text = x + “”;

textBox2.Text = y + “”;

}

private void Form1_FormClosed(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void Form1_FormClosed_1(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void richTextBox1_TextChanged(object sender, EventArgs e)

{

}

}

public class Win32Api

{

[StructLayout(LayoutKind.Sequential)]

public class POINT

{

public int x;

public int y;

}

[StructLayout(LayoutKind.Sequential)]

public class MouseHookStruct

{

public POINT pt;

public int hwnd;

public int wHitTestCode;

public int dwExtraInfo;

}

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern bool UnhookWindowsHookEx(int idHook);

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

}

public class MouseHook

{

private Point point;

private Point Point

{

get { return point; }

set

{

if (point != value)

{

point = value;

if (MouseMoveEvent != null)

{

var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);

MouseMoveEvent(this, e);

}

}

}

}

private int hHook;

private const int WM_MOUSEMOVE = 0x200;

private const int WM_LBUTTONDOWN = 0x201;

private const int WM_RBUTTONDOWN = 0x204;

private const int WM_MBUTTONDOWN = 0x207;

private const int WM_LBUTTONUP = 0x202;

private const int WM_RBUTTONUP = 0x205;

private const int WM_MBUTTONUP = 0x208;

private const int WM_LBUTTONDBLCLK = 0x203;

private const int WM_RBUTTONDBLCLK = 0x206;

private const int WM_MBUTTONDBLCLK = 0x209;

public const int WH_MOUSE_LL = 14;

public Win32Api.HookProc hProc;

public MouseHook()

{

this.Point = new Point();

}

public int SetHook()

{

hProc = new Win32Api.HookProc(MouseHookProc);

hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);

return hHook;

}

public void UnHook()

{

Win32Api.UnhookWindowsHookEx(hHook);

}

private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)

{

Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));

if (nCode 《 0)

{

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

else

{

if (MouseClickEvent != null)

{

MouseButtons button = MouseButtons.None;

int clickCount = 0;

switch ((Int32)wParam)

{

case WM_LBUTTONDOWN:

button = MouseButtons.Left;

clickCount = 1;

MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_RBUTTONDOWN:

button = MouseButtons.Right;

clickCount = 1;

MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_MBUTTONDOWN:

button = MouseButtons.Middle;

clickCount = 1;

MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_LBUTTONUP:

button = MouseButtons.Left;

clickCount = 1;

MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_RBUTTONUP:

button = MouseButtons.Right;

clickCount = 1;

MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_MBUTTONUP:

button = MouseButtons.Middle;

clickCount = 1;

MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

}

var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0);

MouseClickEvent(this, e);

}

this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

}

public delegate void MouseMoveHandler(object sender, MouseEventArgs e);

public event MouseMoveHandler MouseMoveEvent;

public delegate void MouseClickHandler(object sender, MouseEventArgs e);

public event MouseClickHandler MouseClickEvent;

public delegate void MouseDownHandler(object sender, MouseEventArgs e);

public event MouseDownHandler MouseDownEvent;

public delegate void MouseUpHandler(object sender, MouseEventArgs e);

public event MouseUpHandler MouseUpEvent;

}

}

如果有任何疑问,请让我知道!

步骤3:演示2:检测双击并控制LED

C#

请参见上图。为了防止错误触发,我在屏幕区域的右1/5处设置了检测鼠标双击的功能。

在此演示中,您将知道如何检测双击(只需计算两次单击的间隔)并通过Arduino Leonardo控制LED。

此演示涉及C#和Arduino串行通信(PC与Arduino之间的通信)。如果您想了解这部分知识,请参见此处的教程。

如何播放演示2:

双击右侧1/5侧面屏幕上的,然后您将进入GPIO控制模式,LED将会点亮。单击屏幕左侧的4/5侧,LED将关闭。

您可以在附件中查看代码或在此处下载演示。如果最小化窗口,则该功能仍然有效。很酷,不是吗?

演示2代码:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

using System.Globalization;

using LattePanda.Firmata;

namespace Demo_mousehook_csdn

{

public partial class Form1 : Form

{

static Arduino arduino = new Arduino();

static DateTime localDate = DateTime.Now;

double click_time;

int click_count = 0;

bool tri_click_flag = false;

public Form1()

{

InitializeComponent();

arduino.pinMode(13, Arduino.OUTPUT);//

}

MouseHook mh;

private void Form1_Load(object sender, EventArgs e)

{

mh = new MouseHook();

mh.SetHook();

mh.MouseMoveEvent += mh_MouseMoveEvent;

mh.MouseClickEvent += mh_MouseClickEvent;

}

private void mh_MouseClickEvent(object sender, MouseEventArgs e)

{

//MessageBox.Show(e.X + “-” + e.Y);

if (e.Button == MouseButtons.Left)

{

string sText = “(” + e.X.ToString() + “,” + e.Y.ToString() + “)”;

label1.Text = sText;

click_time = (DateTime.Now - localDate).TotalSeconds;

localDate = DateTime.Now;

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

if (click_time 《= 0.5)

{

click_count += 1;

if (click_count 》 0)

{

click_count = 1;

tri_click_flag = true;

}

else

{

tri_click_flag = false;

}

}

else

{

}

if (click_count 《=1 && click_time 》 0.5)

click_count = 0;

}

else

{

click_count = 0;

tri_click_flag = false;

}

if (tri_click_flag == true)

{

textBox6.Text = “1”;

arduino.digitalWrite(13, Arduino.HIGH);

}

else

{

textBox6.Text = “0”;

arduino.digitalWrite(13, Arduino.LOW);

}

}

}

private void mh_MouseMoveEvent(object sender, MouseEventArgs e)

{

int x = e.Location.X;

int y = e.Location.Y;

textBox1.Text = x + “”;

textBox2.Text = y + “”;

textBox3.Text = Screen.PrimaryScreen.Bounds.Height.ToString();

textBox4.Text = Screen.PrimaryScreen.Bounds.Width.ToString();

}

private void Form1_FormClosed(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void Form1_FormClosed_1(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

}

private void textBox2_TextChanged(object sender, EventArgs e)

{

}

private void label1_Click(object sender, EventArgs e)

{

}

private void textBox3_TextChanged(object sender, EventArgs e)

{

}

private void textBox4_TextChanged(object sender, EventArgs e)

{

}

private void label2_Click(object sender, EventArgs e)

{

}

private void label3_Click(object sender, EventArgs e)

{

}

private void textBox5_TextChanged(object sender, EventArgs e)

{

}

private void textBox6_TextChanged(object sender, EventArgs e)

{

}

}

public class Win32Api

{

[StructLayout(LayoutKind.Sequential)]

public class POINT

{

public int x;

public int y;

}

[StructLayout(LayoutKind.Sequential)]

public class MouseHookStruct

{

public POINT pt;

public int hwnd;

public int wHitTestCode;

public int dwExtraInfo;

}

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

//安装钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);

//卸载钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern bool UnhookWindowsHookEx(int idHook);

//调用下一个钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

}

public class MouseHook

{

private Point point;

private Point Point

{

get { return point; }

set

{

if (point != value)

{

point = value;

if (MouseMoveEvent != null)

{

var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);

MouseMoveEvent(this, e);

}

}

}

}

private int hHook;

private const int WM_LBUTTONDOWN = 0x201;

public const int WH_MOUSE_LL = 14;

public Win32Api.HookProc hProc;

public MouseHook()

{

this.Point = new Point();

}

public int SetHook()

{

hProc = new Win32Api.HookProc(MouseHookProc);

hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);

return hHook;

}

public void UnHook()

{

Win32Api.UnhookWindowsHookEx(hHook);

}

private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)

{

Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));

if (nCode 《 0)

{

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

else

{

if (MouseClickEvent != null)

{

MouseButtons button = MouseButtons.None;

int clickCount = 0;

switch ((Int32)wParam)

{

case WM_LBUTTONDOWN:

button = MouseButtons.Left;

clickCount = 1;

break;

}

var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0);

MouseClickEvent(this, e);

}

this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

}

public delegate void MouseMoveHandler(object sender, MouseEventArgs e);

public event MouseMoveHandler MouseMoveEvent;

public delegate void MouseClickHandler(object sender, MouseEventArgs e);

public event MouseClickHandler MouseClickEvent;

}

}

这是一种进行交互项目的新方法。它也可以用于家庭自动化控制系统。使用PC来控制空调,灯光,电视等。

步骤4:演示3:检测三次单击并控制屏幕背景光

在此演示中,您将获得鼠标的位置并将实时值发送到PC。然后,您的PC可以根据该值更改背景光。 您还可以在PC上播放此演示。

此演示涉及使用C#来控制屏幕的背景光。如果您想了解这一部分知识,可以在这里查看教程。

如何播放演示3:

在右侧1/3上单击三次。屏幕的5侧,然后您将进入GPIO控制模式,向上或向下移动手指,屏幕的背景光会变暗或变暗。

此功能与您的iPhone有点相似。您可以在附件中查看代码或在此处下载演示。

方法1:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

using System.Globalization;

namespace Demo_mousehook_csdn

{

public partial class Form1 : Form

{

[DllImport(“gdi32.dll”)]

private unsafe static extern bool SetDeviceGammaRamp(Int32 hdc, void* ramp);

private static bool initialized = false;

private static Int32 hdc;

private static int a;

static DateTime localDate = DateTime.Now;

double click_time;

int click_count = 0;

bool tri_click_flag = false;

static string sText=“”;

static int IncreaseData = 0;

static int ClickPositionY = 0;

public Form1()

{

InitializeComponent();

}

MouseHook mh;

// protected override void SetVisibleCore(bool value)

// {

// base.SetVisibleCore(false);

// }

private void Form1_Load(object sender, EventArgs e)

{

mh = new MouseHook();

mh.SetHook();

mh.MouseMoveEvent += mh_MouseMoveEvent;

mh.MouseClickEvent += mh_MouseClickEvent;

mh.MouseDownEvent += mh_MouseDownEvent;

mh.MouseUpEvent += mh_MouseUpEvent;

}

private static void InitializeClass()

{

if (initialized)

return;

//Get the hardware device context of the screen, we can do

//this by getting the graphics object of null (IntPtr.Zero)

//then getting the HDC and converting that to an Int32.

hdc = Graphics.FromHwnd(IntPtr.Zero).GetHdc().ToInt32();

initialized = false;

}

public static unsafe bool SetBrightness(int brightness)

{

InitializeClass();

if (brightness 》 255)

brightness = 255;

if (brightness 《 0)

brightness = 0;

short* gArray = stackalloc short[3 * 256];

short* idx = gArray;

for (int j = 0; j 《 3; j++)

{

for (int i = 0; i 《 256; i++)

{

int arrayVal = i * (brightness + 128);

if (arrayVal 》 65535)

arrayVal = 65535;

*idx = (short)arrayVal;

idx++;

}

}

//For some reason, this always returns false?

bool retVal = SetDeviceGammaRamp(hdc, gArray);

//Memory allocated through stackalloc is automatically free‘d

//by the CLR.

return retVal;

}

private void mh_MouseClickEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

ClickPositionY = e.X;

sText = “(” + e.X.ToString() + “,” + e.Y.ToString() + “)”;

label1.Text = sText;

click_time = (DateTime.Now - localDate).TotalSeconds;

localDate = DateTime.Now;

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

if (click_time 《= 0.5)

{

click_count += 1;

label3.Text = “1”;

if (click_count 》 1)

{

click_count = 2;

label2.Text = “1”;

tri_click_flag = true;

}

else

{

label2.Text = “0”;

tri_click_flag = false;

}

textBox5.Text = click_count.ToString();

}

else

{

textBox5.Text = click_count.ToString();

}

if (click_count 《=1 && click_time 》 0.5)

click_count = 0;

}

else

{

label3.Text = “0”;

click_count = 0;

textBox5.Text = click_count.ToString();

label2.Text = “0”;

tri_click_flag = false;

}

}

}

private void mh_MouseMoveEvent(object sender, MouseEventArgs e)

{

int x = e.Location.X;

int y = e.Location.Y;

int LedData = 0;

LedData = (Screen.PrimaryScreen.Bounds.Height - y)*140/ Screen.PrimaryScreen.Bounds.Height;

if (LedData 《= 0)

LedData = 0;

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

if (tri_click_flag == true)

{

textBox6.Text = “1”;

SetBrightness(LedData);

label15.Text = LedData.ToString();

}

else

{

textBox6.Text = “0”;

}

}

textBox1.Text = x + “”;

textBox2.Text = y + “”;

textBox3.Text = Screen.PrimaryScreen.Bounds.Height.ToString();

textBox4.Text = Screen.PrimaryScreen.Bounds.Width.ToString();

}

private void Form1_FormClosed(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void Form1_FormClosed_1(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

}

private void textBox2_TextChanged(object sender, EventArgs e)

{

}

private void label1_Click(object sender, EventArgs e)

{

}

private void textBox3_TextChanged(object sender, EventArgs e)

{

}

private void textBox4_TextChanged(object sender, EventArgs e)

{

}

private void label2_Click(object sender, EventArgs e)

{

}

private void label3_Click(object sender, EventArgs e)

{

}

private void textBox5_TextChanged(object sender, EventArgs e)

{

}

private void textBox6_TextChanged(object sender, EventArgs e)

{

}

private void mh_MouseDownEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

richTextBox1.AppendText(“按下了左键 ”);

}

}

private void mh_MouseUpEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

richTextBox1.AppendText(“松开了左键 ”);

}

}

private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)

{

}

private void contextMenuStrip1_Opening(object sender, CancelEventArgs e)

{

}

private void exitToolStripMenuItem_Click(object sender, EventArgs e)

{

Application.ExitThread();

Environment.Exit(0);

}

private void label13_Click(object sender, EventArgs e)

{

}

private void label14_Click(object sender, EventArgs e)

{

}

private void label15_Click(object sender, EventArgs e)

{

}

private void richTextBox1_TextChanged(object sender, EventArgs e)

{

}

}

public class Win32Api

{

[StructLayout(LayoutKind.Sequential)]

public class POINT

{

public int x;

public int y;

}

[StructLayout(LayoutKind.Sequential)]

public class MouseHookStruct

{

public POINT pt;

public int hwnd;

public int wHitTestCode;

public int dwExtraInfo;

}

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

//安装钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);

//卸载钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern bool UnhookWindowsHookEx(int idHook);

//调用下一个钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

}

public class MouseHook

{

private Point point;

private Point Point

{

get { return point; }

set

{

if (point != value)

{

point = value;

if (MouseMoveEvent != null)

{

var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);

MouseMoveEvent(this, e);

}

}

}

}

private int hHook;

private const int WM_LBUTTONDOWN = 0x201;

private const int WM_LBUTTONUP = 0x202;

public const int WH_MOUSE_LL = 14;

public Win32Api.HookProc hProc;

public MouseHook()

{

this.Point = new Point();

}

public int SetHook()

{

hProc = new Win32Api.HookProc(MouseHookProc);

hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);

return hHook;

}

public void UnHook()

{

Win32Api.UnhookWindowsHookEx(hHook);

}

private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)

{

Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));

if (nCode 《 0)

{

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

else

{

if (MouseClickEvent != null)

{

MouseButtons button = MouseButtons.None;

int clickCount = 0;

switch ((Int32)wParam)

{

case WM_LBUTTONDOWN:

button = MouseButtons.Left;

clickCount = 1;

break;

case WM_LBUTTONUP:

button = MouseButtons.Left;

clickCount = 1;

break;

}

var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0);

MouseClickEvent(this, e);

}

this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

}

public delegate void MouseMoveHandler(object sender, MouseEventArgs e);

public event MouseMoveHandler MouseMoveEvent;

public delegate void MouseClickHandler(object sender, MouseEventArgs e);

public event MouseClickHandler MouseClickEvent;

public delegate void MouseDownHandler(object sender, MouseEventArgs e);

public event MouseDownHandler MouseDownEvent;

public delegate void MouseUpHandler(object sender, MouseEventArgs e);

public event MouseUpHandler MouseUpEvent;

}

}

方法2:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

using System.Globalization;

//using LattePanda.Firmata;

namespace Demo_mousehook_csdn

{

public partial class Form1 : Form

{

//static Arduino arduino = new Arduino();

static DateTime localDate = DateTime.Now;

double click_time;

int click_count = 0;

bool tri_click_flag = false;

bool mouse_down_flag = false;

static string sText=“”;

static int ClickPositionY = 0;

static int LedData = 0;//需要发送的LED亮度值

static int LedIncreaseData = 0; //Data增量

static int LedLastData = 0;//Led的最后一次亮度

static int LedStoreData = 0;//Led需要储藏的数值,备用

[DllImport(“gdi32.dll”)]

private unsafe static extern bool SetDeviceGammaRamp(Int32 hdc, void* ramp);

private static bool initialized = false;

private static Int32 hdc;

private static void InitializeClass()

{

if (initialized)

return;

//Get the hardware device context of the screen, we can do

//this by getting the graphics object of null (IntPtr.Zero)

//then getting the HDC and converting that to an Int32.

hdc = Graphics.FromHwnd(IntPtr.Zero).GetHdc().ToInt32();

initialized = false;

}

public static unsafe bool SetBrightness(int brightness)

{

InitializeClass();

if (brightness 》 255)

brightness = 255;

if (brightness 《 0)

brightness = 0;

short* gArray = stackalloc short[3 * 256];

short* idx = gArray;

for (int j = 0; j 《 3; j++)

{

for (int i = 0; i 《 256; i++)

{

int arrayVal = i * (brightness + 128);

if (arrayVal 》 65535)

arrayVal = 65535;

*idx = (short)arrayVal;

idx++;

}

}

//For some reason, this always returns false?

bool retVal = SetDeviceGammaRamp(hdc, gArray);

//Memory allocated through stackalloc is automatically free’d

//by the CLR.

return retVal;

}

public Form1()

{

InitializeComponent();

// arduino.pinMode(13, Arduino.OUTPUT);//

}

MouseHook mh;

// protected override void SetVisibleCore(bool value)

// {

// base.SetVisibleCore(false);

// }

private void Form1_Load(object sender, EventArgs e)

{

mh = new MouseHook();

mh.SetHook();

mh.MouseMoveEvent += mh_MouseMoveEvent;

mh.MouseClickEvent += mh_MouseClickEvent;

mh.MouseUpEvent += mh_MouseUpEvent;

mh.MouseDownEvent += mh_MouseDownEvent;

}

private void mh_MouseUpEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

LedLastData = LedData;

mouse_down_flag = false;

richTextBox1.AppendText(“Released ”);

}

}

private void mh_MouseDownEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

mouse_down_flag = true;

click_time = (DateTime.Now - localDate).TotalSeconds;

localDate = DateTime.Now;

label13.Text = click_time.ToString();

richTextBox1.AppendText(“Pressed ”);

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

ClickPositionY= e.Location.Y;

if (click_time 《= 0.5)

{

click_count += 1;

label3.Text = “1”;

if (click_count 》 1)

{

click_count = 2;

label2.Text = “1”;

tri_click_flag = true;

}

else

{

label2.Text = “0”;

tri_click_flag = false;

}

textBox5.Text = click_count.ToString();

}

else

{

textBox5.Text = click_count.ToString();

}

if (click_count 《= 1 && click_time 》 0.5)

click_count = 0;

}

else

{

label3.Text = “0”;

click_count = 0;

textBox5.Text = click_count.ToString();

label2.Text = “0”;

tri_click_flag = false;

}

}

}

private void mh_MouseClickEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

sText = “(” + e.X.ToString() + “,” + e.Y.ToString() + “)”;

label1.Text = sText;

}

}

private void mh_MouseMoveEvent(object sender, MouseEventArgs e)

{

int x = e.Location.X;

int y = e.Location.Y;

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

if (tri_click_flag == true)

{

textBox6.Text = “1”;

if(mouse_down_flag==true)

{

LedIncreaseData = (ClickPositionY - y) * 140 / 1080;

LedData = LedStoreData + LedIncreaseData;

if(LedData《0)

{

LedData = 0;

}

if (LedData 》 140)

{

LedData = 140;

}

SetBrightness(LedData);

}

if(mouse_down_flag==false)

{

LedStoreData = LedLastData;

}

}

else

{

textBox6.Text = “0”;

}

}

label19.Text = LedStoreData.ToString();

label20.Text = LedData.ToString();

label15.Text = LedIncreaseData.ToString();

textBox1.Text = x + “”;

textBox2.Text = y + “”;

textBox3.Text = Screen.PrimaryScreen.Bounds.Height.ToString();

textBox4.Text = Screen.PrimaryScreen.Bounds.Width.ToString();

}

private void Form1_FormClosed(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void Form1_FormClosed_1(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

}

private void textBox2_TextChanged(object sender, EventArgs e)

{

}

private void label1_Click(object sender, EventArgs e)

{

}

private void textBox3_TextChanged(object sender, EventArgs e)

{

}

private void textBox4_TextChanged(object sender, EventArgs e)

{

}

private void label2_Click(object sender, EventArgs e)

{

}

private void label3_Click(object sender, EventArgs e)

{

}

private void textBox5_TextChanged(object sender, EventArgs e)

{

}

private void textBox6_TextChanged(object sender, EventArgs e)

{

}

private void Form1_MouseDown(object sender, MouseEventArgs e)

{

}

private void Form1_MouseUp(object sender, MouseEventArgs e)

{

}

private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)

{

}

private void contextMenuStrip1_Opening(object sender, CancelEventArgs e)

{

}

private void exitToolStripMenuItem_Click(object sender, EventArgs e)

{

Application.ExitThread();

Environment.Exit(0);

}

private void label13_Click(object sender, EventArgs e)

{

}

private void label14_Click(object sender, EventArgs e)

{

}

private void label15_Click(object sender, EventArgs e)

{

}

private void richTextBox1_TextChanged(object sender, EventArgs e)

{

}

private void label19_Click(object sender, EventArgs e)

{

}

private void label20_Click(object sender, EventArgs e)

{

}

}

public class Win32Api

{

[StructLayout(LayoutKind.Sequential)]

public class POINT

{

public int x;

public int y;

}

[StructLayout(LayoutKind.Sequential)]

public class MouseHookStruct

{

public POINT pt;

public int hwnd;

public int wHitTestCode;

public int dwExtraInfo;

}

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

//安装钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);

//卸载钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern bool UnhookWindowsHookEx(int idHook);

//调用下一个钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

}

public class MouseHook

{

private Point point;

private Point Point

{

get { return point; }

set

{

if (point != value)

{

point = value;

if (MouseMoveEvent != null)

{

var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);

MouseMoveEvent(this, e);

}

}

}

}

private int hHook;

private const int WM_LBUTTONDOWN = 0x201;

private const int WM_LBUTTONUP = 0x202;

public const int WH_MOUSE_LL = 14;

public Win32Api.HookProc hProc;

public MouseHook()

{

this.Point = new Point();

}

public int SetHook()

{

hProc = new Win32Api.HookProc(MouseHookProc);

hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);

return hHook;

}

public void UnHook()

{

Win32Api.UnhookWindowsHookEx(hHook);

}

private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)

{

Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));

if (nCode 《 0)

{

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

else

{

if (MouseClickEvent != null)

{

MouseButtons button = MouseButtons.None;

int clickCount = 0;

switch ((Int32)wParam)

{

case WM_LBUTTONDOWN:

button = MouseButtons.Left;

clickCount = 1;

MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_LBUTTONUP:

button = MouseButtons.Left;

clickCount = 1;

MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

}

var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0);

MouseClickEvent(this, e);

}

this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

}

public delegate void MouseMoveHandler(object sender, MouseEventArgs e);

public event MouseMoveHandler MouseMoveEvent;

public delegate void MouseClickHandler(object sender, MouseEventArgs e);

public event MouseClickHandler MouseClickEvent;

public delegate void MouseUpHandler(object sender, MouseEventArgs e);

public event MouseUpHandler MouseUpEvent;

public delegate void MouseDownHandler(object sender, MouseEventArgs e);

public event MouseDownHandler MouseDownEvent;

}

}

玩得开心!

到目前为止还好吗?如有任何疑问,请告诉我!

步骤5:演示4:检测三次单击并控制LED灯

在此演示中,您将获得鼠标的位置并将实时值发送到Arduino。然后您的Arduino可以根据该值控制LED。

播放DEMO 4的方法:

在屏幕右侧的1/5上单击三下,您将进入GPIO控制模式,移动您的GPIO手指向上或向下,LED(D13)会变亮或变暗。

此演示涉及PC与Arduino之间的通信(Arduino和C#通信)。如果您想了解这部分知识,请参阅此处的教程。

您可以在附件中查看代码,也可以在此处下载演示。

Demo 4代码:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

using System.Globalization;

using LattePanda.Firmata;

namespace Demo_mousehook_csdn

{

public partial class Form1 : Form

{

static Arduino arduino = new Arduino();

static DateTime localDate = DateTime.Now;

double click_time;

int click_count = 0;

bool tri_click_flag = false;

bool mouse_down_flag = false;

static string sText=“”;

static int ClickPositionY = 0;

static int LedData = 0;//需要发送的LED亮度值

static int LedIncreaseData = 0; //Data增量

static int LedLastData = 0;//Led的最后一次亮度

static int LedStoreData = 0;//Led需要储藏的数值,备用

public Form1()

{

InitializeComponent();

arduino.pinMode(13, Arduino.PWM);//

}

MouseHook mh;

private void Form1_Load(object sender, EventArgs e)

{

mh = new MouseHook();

mh.SetHook();

mh.MouseMoveEvent += mh_MouseMoveEvent;

mh.MouseClickEvent += mh_MouseClickEvent;

mh.MouseUpEvent += mh_MouseUpEvent;

mh.MouseDownEvent += mh_MouseDownEvent;

}

private void mh_MouseUpEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

LedLastData = LedData;

mouse_down_flag = false;

richTextBox1.AppendText(“Released ”);

}

}

private void mh_MouseDownEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

mouse_down_flag = true;

click_time = (DateTime.Now - localDate).TotalSeconds;

localDate = DateTime.Now;

label13.Text = click_time.ToString();

richTextBox1.AppendText(“Pressed ”);

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

ClickPositionY= e.Location.Y;

if (click_time 《= 0.5)

{

click_count += 1;

label3.Text = “1”;

if (click_count 》 1)

{

click_count = 2;

label2.Text = “1”;

tri_click_flag = true;

}

else

{

label2.Text = “0”;

tri_click_flag = false;

}

textBox5.Text = click_count.ToString();

}

else

{

textBox5.Text = click_count.ToString();

}

if (click_count 《= 1 && click_time 》 0.5)

click_count = 0;

}

else

{

label3.Text = “0”;

click_count = 0;

textBox5.Text = click_count.ToString();

label2.Text = “0”;

tri_click_flag = false;

}

}

}

private void mh_MouseClickEvent(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

sText = “(” + e.X.ToString() + “,” + e.Y.ToString() + “)”;

label1.Text = sText;

}

}

private void mh_MouseMoveEvent(object sender, MouseEventArgs e)

{

int x = e.Location.X;

int y = e.Location.Y;

if (e.X 》 (Screen.PrimaryScreen.Bounds.Width / 5 * 4))

{

if (tri_click_flag == true)

{

textBox6.Text = “1”;

if(mouse_down_flag==true)

{

LedIncreaseData = (ClickPositionY - y) * 140 / 1080;

LedData = LedStoreData + LedIncreaseData;

if(LedData《0)

{

LedData = 0;

}

if (LedData 》 140)

{

LedData = 140;

}

arduino.analogWrite(13,LedData);

}

if(mouse_down_flag==false)

{

LedStoreData = LedLastData;

}

}

else

{

textBox6.Text = “0”;

}

}

label19.Text = LedStoreData.ToString();

label20.Text = LedData.ToString();

label15.Text = LedIncreaseData.ToString();

textBox1.Text = x + “”;

textBox2.Text = y + “”;

textBox3.Text = Screen.PrimaryScreen.Bounds.Height.ToString();

textBox4.Text = Screen.PrimaryScreen.Bounds.Width.ToString();

}

private void Form1_FormClosed(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void Form1_FormClosed_1(object sender, FormClosedEventArgs e)

{

mh.UnHook();

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

}

private void textBox2_TextChanged(object sender, EventArgs e)

{

}

private void label1_Click(object sender, EventArgs e)

{

}

private void textBox3_TextChanged(object sender, EventArgs e)

{

}

private void textBox4_TextChanged(object sender, EventArgs e)

{

}

private void label2_Click(object sender, EventArgs e)

{

}

private void label3_Click(object sender, EventArgs e)

{

}

private void textBox5_TextChanged(object sender, EventArgs e)

{

}

private void textBox6_TextChanged(object sender, EventArgs e)

{

}

private void Form1_MouseDown(object sender, MouseEventArgs e)

{

}

private void Form1_MouseUp(object sender, MouseEventArgs e)

{

}

private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)

{

}

private void contextMenuStrip1_Opening(object sender, CancelEventArgs e)

{

}

private void exitToolStripMenuItem_Click(object sender, EventArgs e)

{

Application.ExitThread();

Environment.Exit(0);

}

private void label13_Click(object sender, EventArgs e)

{

}

private void label14_Click(object sender, EventArgs e)

{

}

private void label15_Click(object sender, EventArgs e)

{

}

private void richTextBox1_TextChanged(object sender, EventArgs e)

{

}

private void label19_Click(object sender, EventArgs e)

{

}

private void label20_Click(object sender, EventArgs e)

{

}

}

public class Win32Api

{

[StructLayout(LayoutKind.Sequential)]

public class POINT

{

public int x;

public int y;

}

[StructLayout(LayoutKind.Sequential)]

public class MouseHookStruct

{

public POINT pt;

public int hwnd;

public int wHitTestCode;

public int dwExtraInfo;

}

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

//安装钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);

//卸载钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern bool UnhookWindowsHookEx(int idHook);

//调用下一个钩子

[DllImport(“user32.dll”, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

}

public class MouseHook

{

private Point point;

private Point Point

{

get { return point; }

set

{

if (point != value)

{

point = value;

if (MouseMoveEvent != null)

{

var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);

MouseMoveEvent(this, e);

}

}

}

}

private int hHook;

private const int WM_LBUTTONDOWN = 0x201;

private const int WM_LBUTTONUP = 0x202;

public const int WH_MOUSE_LL = 14;

public Win32Api.HookProc hProc;

public MouseHook()

{

this.Point = new Point();

}

public int SetHook()

{

hProc = new Win32Api.HookProc(MouseHookProc);

hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);

return hHook;

}

public void UnHook()

{

Win32Api.UnhookWindowsHookEx(hHook);

}

private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)

{

Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));

if (nCode 《 0)

{

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

else

{

if (MouseClickEvent != null)

{

MouseButtons button = MouseButtons.None;

int clickCount = 0;

switch ((Int32)wParam)

{

case WM_LBUTTONDOWN:

button = MouseButtons.Left;

clickCount = 1;

MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

case WM_LBUTTONUP:

button = MouseButtons.Left;

clickCount = 1;

MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));

break;

}

var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0);

MouseClickEvent(this, e);

}

this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);

return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);

}

}

public delegate void MouseMoveHandler(object sender, MouseEventArgs e);

public event MouseMoveHandler MouseMoveEvent;

public delegate void MouseClickHandler(object sender, MouseEventArgs e);

public event MouseClickHandler MouseClickEvent;

public delegate void MouseUpHandler(object sender, MouseEventArgs e);

public event MouseUpHandler MouseUpEvent;

public delegate void MouseDownHandler(object sender, MouseEventArgs e);

public event MouseDownHandler MouseDownEvent;

}

}

如果您有任何疑问,请告诉我!

步骤6:摘要:

您得到的货款!在Respberry Pi上运行Win10时,我不能忍受滞后。当您需要在SBC及其基于x64的处理器上进行大型项目时,LattePanda是一个不错的选择。 LattePanda的CPU可以完美地处理大型项目。它也可以完美地运行Ubuntu。对我来说,LattePanda是一个训练我的编码能力的好平台。由于它运行Win10系统,因此我可以使用Visual Studio在C ++,C#,Python等中执行许多项目。更重要的是,它还配备了Arduino Leonardo。我可以在PC上轻松控制物理世界。

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