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c#虛擬鍵盤、虛擬鼠標(biāo)以及窗口查找 - 唐朝程序員 - 博客園

donixli1314 >《Desktop》

2008.07.09

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我想編制一個(gè)qq自動(dòng)登陸程序，確發(fā)現(xiàn)C#中對(duì)很多api沒有封裝，只有使用平臺(tái)調(diào)用了。其中用到窗體查找和虛擬鍵盤、虛擬鼠標(biāo)等函數(shù)。具體代碼如下：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace SimulateMouse

{

public partial class DemoForm : Form

{

[StructLayout(LayoutKind.Sequential)]

struct NativeRECT

{

public int left;

public int top;

public int right;

public int bottom;

}

[Flags]

enum MouseEventFlag : uint

{

Move = 0x0001,

LeftDown = 0x0002,

LeftUp = 0x0004,

RightDown = 0x0008,

RightUp = 0x0010,

MiddleDown = 0x0020,

MiddleUp = 0x0040,

XDown = 0x0080,

XUp = 0x0100,

Wheel = 0x0800,

VirtualDesk = 0x4000,

Absolute = 0x8000

}

[DllImport("user32.dll")]

static extern bool SetCursorPos(int X, int Y);

[DllImport("user32.dll")]

static extern void mouse_event(MouseEventFlag flags, int dx, int dy, uint data, UIntPtr extraInfo);

[DllImport("user32.dll")]

static extern IntPtr FindWindow(string strClass, string strWindow);

[DllImport("user32.dll")]

static extern IntPtr FindWindowEx(HandleRef hwndParent, HandleRef hwndChildAfter, string strClass, string strWindow);

[DllImport("user32.dll")]

static extern bool GetWindowRect(HandleRef hwnd, out NativeRECT rect);

[DllImport("user32.dll")]

static extern void keybd_event(byte bVk,byte bScan,uint dwFlags,uint dwExtraInfo);

private Point endPosition;

public DemoForm()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

NativeRECT rect;

IntPtr ptrTaskbar = FindWindow("#32770","QQ用戶登錄");

if (ptrTaskbar == IntPtr.Zero)

{

MessageBox.Show("No taskbar found.");

return;

}

IntPtr ptrStartBtn = FindWindowEx(new HandleRef(this, ptrTaskbar), new HandleRef(this, IntPtr.Zero), "ComboBox", null);

if (ptrStartBtn == IntPtr.Zero)

{

MessageBox.Show("No qq號(hào)碼框 found.");

return;

}

GetWindowRect(new HandleRef(this, ptrStartBtn), out rect);

endPosition.X = (rect.left + rect.right) / 2;

endPosition.Y = (rect.top + rect.bottom) / 2;

SetCursorPos(endPosition.X, endPosition.Y);

mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);

mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);

mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);

mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);

System.IO.StreamWriter tw = new System.IO.StreamWriter(@"d:/aa.txt");

tw.Write("49593533");

tw.Close();

System.IO.StreamReader tr = new System.IO.StreamReader(@"d:/aa.txt");

String mystr = tr.ReadToEnd();

tr.Close();

for(int i=0;i<mystr.Length;i++)

keybd_event((byte)mystr[i], 0, 0, 0);

IntPtr ptrPassWord = FindWindowEx(new HandleRef(this, ptrTaskbar), new HandleRef(this, IntPtr.Zero), "#32770", null);

GetWindowRect(new HandleRef(this, ptrPassWord), out rect);

endPosition.X = (rect.left + rect.right) / 2;

endPosition.Y = (rect.top + rect.bottom) / 2;

SetCursorPos(endPosition.X, endPosition.Y);

mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);

mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);

mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);

mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);

mystr = "mypassword";

for (int i = 0; i < mystr.Length; i++)

{

keybd_event((byte)mystr[i], 0, 0, 0);

}

說明：（1）所有虛擬鍵盤碼可以到http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp去查找。

（2）首先介紹一下Keybd_event函數(shù)。Keybd_event能觸發(fā)一個(gè)按鍵事件，也就是說回產(chǎn)生一個(gè)WM_KEYDOWN或WM_KEYUP消息。當(dāng)然也可以用產(chǎn)生這兩個(gè)消息來(lái)模擬按鍵，但是沒有直接用這個(gè)函數(shù)方便。Keybd_event共有四個(gè)參數(shù)，第一個(gè)為按鍵的虛擬鍵值，如回車鍵為vk_return,　tab鍵為vk_tab。第二個(gè)參數(shù)為掃描碼，一般不用設(shè)置，用0代替就行第三個(gè)參數(shù)為選項(xiàng)標(biāo)志，如果為keydown則置0即可，如果為keyup則設(shè)成“KEYEVENTF_KEYUP”或者2，第四個(gè)參數(shù)一般也是置0即可。

keybd_event(VK_CONTROL, (BYTE)0, 0 ,0);

keybd_event('A',(BYTE)0, 0 ,0); //此處可以用 'A', (BYTE)65, 用'a'不起作用.

keybd_event('A', (BYTE)0, KEYEVENTF_KEYUP,0);

keybd_event(VK_CONTROL, (BYTE)0, KEYEVENTF_KEYUP,0);

上面的代碼表示 ctl+a

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