如何遍历系统托盘区的图标？
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public sealed class NotifyHelper
{
private static int WM_TASKBARCREATED = RegisterWindowMessage("TaskbarCreated");
private const int WM_USER = 0x400;
private const int WM_TRAYMOUSEMESSAGE = 2048;
private const int WM_MOUSEMOVE = 0x200;
private const int WM_LBUTTONDOWN = 0x201;
private const int WM_LBUTTONUP = 0x202;
private const int WM_LBUTTONDBLCLK = 0x203;
private const int WM_RBUTTONDOWN = 0x204;
private const int WM_RBUTTONUP = 0x205;
private const int WM_RBUTTONDBLCLK = 0x206;
private const int WM_MBUTTONDOWN = 0x207;
private const int WM_MBUTTONUP = 0x208;
private const int WM_MBUTTONDBLCLK = 0x209;
private const int NIN_BALLOONSHOW = 0x402;
private const int NIN_BALLOONHIDE = 0x403;
private const int NIN_BALLOONTIMEOUT = 0x404;
private const int NIN_BALLOONUSERCLICK = 0x405;
private const int READ_CONTROL = 0x20000;
private const int STANDARD_RIGHTS_REQUIRED = 0xF0000;
private const int STANDARD_RIGHTS_READ = READ_CONTROL;
private const int STANDARD_RIGHTS_EXECUTE = READ_CONTROL;
private const int STANDARD_RIGHTS_ALL = 0x1F0000;
private const int STANDARD_RIGHTS_WRITE = READ_CONTROL;
private const int SYNCHRONIZE = 0x100000;
private const int PROCESS_ALL_ACCESS = STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0xFFF;
private const int PROCESS_TERMINATE = 0x1;
private const int PROCESS_VM_OPERATION = 0x8;
private const int PROCESS_VM_READ = 0x10;
private const int PROCESS_VM_WRITE = 0x20;
private const int MEM_RESERVE = 0x2000;
private const int MEM_COMMIT = 0x1000;
private const int MEM_RELEASE = 0x8000;
private const int PAGE_READWRITE = 0x4;
private const int TB_BUTTONCOUNT = (WM_USER + 24);
private const int TB_HIDEBUTTON = (WM_USER + 4);
private const int TB_GETBUTTON = (WM_USER + 23);
private const int TB_GETBITMAP = (WM_USER + 44);
private const int TB_DELETEBUTTON = (WM_USER + 22);
private const int TB_ADDBUTTONS = (WM_USER + 20);
private const int TB_INSERTBUTTON = (WM_USER + 21);
private const int TB_ISBUTTONHIDDEN = (WM_USER + 12);
private const int ILD_NORMAL = 0x0;
private const int TPM_NONOTIFY = 0x80;
#region Win32 API 引用
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr PostMessage(HandleRef hwnd, int msg, int wparam, int lparam);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern bool PostMessage(HandleRef hwnd, int msg, IntPtr wparam, IntPtr lparam);
[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
private static extern bool SetForegroundWindow(HandleRef hWnd);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern int RegisterWindowMessage(string msg);
[DllImport("kernel32", EntryPoint = "OpenProcess")]
private static extern IntPtr OpenProcess(
int dwDesiredAccess,
IntPtr bInheritHandle,
IntPtr dwProcessId
);
[DllImport("kernel32", EntryPoint = "CloseHandle")]
private static extern int CloseHandle(
IntPtr hObject
);
[DllImport("user32", EntryPoint = "GetWindowThreadProcessId")]
private static extern IntPtr GetWindowThreadProcessId(
IntPtr hwnd,
ref IntPtr lpdwProcessId
);
[DllImport("user32", EntryPoint = "FindWindow")]
private static extern IntPtr FindWindow(
string lpClassName,
string lpWindowName
);
[DllImport("user32", EntryPoint = "FindWindowEx")]
private static extern IntPtr FindWindowEx(
IntPtr hWnd1,
IntPtr hWnd2,
string lpsz1,
string lpsz2
);
[DllImport("user32", EntryPoint = "SendMessage")]
private static extern int SendMessage(
IntPtr hwnd,
int wMsg,
int wParam,
int lParam
);
[DllImport("user32", EntryPoint = "SendMessage")]
private static extern int SendMessage(
IntPtr hwnd,
int wMsg,
int wParam,
IntPtr lParam
);
[DllImport("kernel32", EntryPoint = "ReadProcessMemory")]
private static extern int ReadProcessMemory(
IntPtr hProcess,
IntPtr lpBaseAddress,
ref IntPtr lpBuffer,
int nSize,
int lpNumberOfBytesWritten
);
[DllImport("kernel32", EntryPoint = "ReadProcessMemory")]
private static extern int ReadProcessMemory(
IntPtr hProcess,
IntPtr lpBaseAddress,
byte[] lpBuffer,
int nSize,
int lpNumberOfBytesWritten
);
[DllImport("kernel32", EntryPoint = "WriteProcessMemory")]
private static extern int WriteProcessMemory(
IntPtr hProcess,
ref int lpBaseAddress,
ref int lpBuffer,
int nSize,
ref int lpNumberOfBytesWritten
);
[DllImport("kernel32", EntryPoint = "VirtualAllocEx")]
private static extern IntPtr VirtualAllocEx(
IntPtr hProcess,
int lpAddress,
int dwSize,
int flAllocationType,
int flProtect
);
[DllImport("kernel32", EntryPoint = "VirtualFreeEx")]
private static extern int VirtualFreeEx(
IntPtr hProcess,
IntPtr lpAddress,
int dwSize,
int dwFreeType
);
#endregion
public static IntPtr FindNotifyIcon(string TipTitle)
{
if (TipTitle.Length == 0) return IntPtr.Zero;
IntPtr pid = IntPtr.Zero;
IntPtr ipHandle = IntPtr.Zero; //圖標句柄
IntPtr lTextAdr = IntPtr.Zero; //文本內存地址
IntPtr ipTemp = FindWindow("Shell_TrayWnd", null);
//找到托盤
ipTemp = FindWindowEx(ipTemp, IntPtr.Zero, "TrayNotifyWnd", null);
ipTemp = FindWindowEx(ipTemp, IntPtr.Zero, "SysPager", null);
IntPtr ipTray = FindWindowEx(ipTemp, IntPtr.Zero, "ToolbarWindow32", null);
GetWindowThreadProcessId(ipTray, ref pid);
if (pid.Equals(0)) return ipHandle;
IntPtr hProcess = OpenProcess(PROCESS_ALL_ACCESS | PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE, IntPtr.Zero, pid);
IntPtr lAddress = VirtualAllocEx(hProcess, 0, 4096, MEM_COMMIT, PAGE_READWRITE);
//得到圖標個數
int lButton = SendMessage(ipTray, TB_BUTTONCOUNT, 0, 0);
for (int i = 0; i < lButton; i++)
{
SendMessage(ipTray, TB_GETBUTTON, i, lAddress);
//讀文本地址
ReadProcessMemory(hProcess, (IntPtr)(lAddress.ToInt32() + 16), ref lTextAdr, 4, 0);
if (!lTextAdr.Equals(-1))
{
byte[] buff = new byte[1024];
//讀文本
ReadProcessMemory(hProcess, lTextAdr, buff, 1024, 0);
string title = System.Text.ASCIIEncoding.Unicode.GetString(buff);
// 從字符0處截斷
int nullindex = title.IndexOf("\0");
if (nullindex > 0)
{
title = title.Substring(0, nullindex);
}
//ReadProcessMemory(hProcess, lAddress, ref ipButtonID, 4, 0);
//判斷是不是要找的圖標
if (title.Equals(TipTitle))
{
IntPtr ipHandleAdr = IntPtr.Zero;
//讀句柄地址
ReadProcessMemory(hProcess, (IntPtr)(lAddress.ToInt32() + 12), ref ipHandleAdr, 4, 0);
ReadProcessMemory(hProcess, ipHandleAdr, ref ipHandle, 4, 0);
break;
}
}
}
VirtualFreeEx(hProcess, lAddress, 4096, MEM_RELEASE);
CloseHandle(hProcess);
return ipHandle;
}
public static void UpdateNotify()
{
IntPtr pid = IntPtr.Zero;
IntPtr ipHandle = IntPtr.Zero; //圖標句柄
IntPtr lTextAdr = IntPtr.Zero; //文本內存地址
IntPtr ipTemp = FindWindow("Shell_TrayWnd", null);
//找到托盤
ipTemp = FindWindowEx(ipTemp, IntPtr.Zero, "TrayNotifyWnd", null);
ipTemp = FindWindowEx(ipTemp, IntPtr.Zero, "SysPager", null);
IntPtr ipTray = FindWindowEx(ipTemp, IntPtr.Zero, "ToolbarWindow32", null);
GetWindowThreadProcessId(ipTray, ref pid);
if (pid.Equals(0)) return;
IntPtr hProcess = OpenProcess(PROCESS_ALL_ACCESS | PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE, IntPtr.Zero, pid);
IntPtr lAddress = VirtualAllocEx(hProcess, 0, 4096, MEM_COMMIT, PAGE_READWRITE);
//得到圖標個數
int lButton = SendMessage(ipTray, TB_BUTTONCOUNT, 0, 0);
for (int i = 0; i < lButton; i++)
{
SendMessage(ipTray, TB_GETBUTTON, i, lAddress);
//讀文本地址
ReadProcessMemory(hProcess, (IntPtr)(lAddress.ToInt32() + 16), ref lTextAdr, 4, 0);
if (!lTextAdr.Equals(-1))
{
byte[] buff = new byte[1024];
//讀文本
ReadProcessMemory(hProcess, lTextAdr, buff, 1024, 0);
string title = System.Text.ASCIIEncoding.Unicode.GetString(buff);
// 從字符0處截斷
int nullindex = title.IndexOf("\0");
if (nullindex > 0)
{
title = title.Substring(0, nullindex);
}
//判斷是不是要找的圖標
IntPtr ipHandleAdr = IntPtr.Zero;
//讀句柄地址
ReadProcessMemory(hProcess, (IntPtr)(lAddress.ToInt32() + 12), ref ipHandleAdr, 4, 0);
ReadProcessMemory(hProcess, ipHandleAdr, ref ipHandle, 4, 0);
IntPtr proid = IntPtr.Zero;
GetWindowThreadProcessId(ipHandle, ref proid);
if (proid == IntPtr.Zero)
{
SendMessage(ipTray, TB_DELETEBUTTON, i, lAddress);
}
}
}
}
}
