当前位置: 编程技术>.net/c#/asp.net
C#获取任务栏上所有窗体的实现代码
来源: 互联网 发布时间:2014-08-30
本文导语: 代码如下: //C#获取任务栏上的所有窗体 //by http://www. using System.Runtime.InteropServices; [DllImport("user32.DLL")] public static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, int lParam); [DllImport("user32.DLL")] public static extern IntPtr FindWindow(stri...
代码如下:
//C#获取任务栏上的所有窗体 //by http://www. using System.Runtime.InteropServices; [DllImport("user32.DLL")] public static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, int lParam); [DllImport("user32.DLL")] public static extern IntPtr FindWindow(string lpszClass, string lpszWindow); [DllImport("user32.DLL")] public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow); [DllImport("user32.dll")] public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint dwProcessId); public const uint PROCESS_VM_OPERATION= 0x0008; public const uint PROCESS_VM_READ= 0x0010; public const uint PROCESS_VM_WRITE = 0x0020; [DllImport("kernel32.dll")] public static extern IntPtr OpenProcess(uint dwDesiredAccess, bool bInheritHandle, uint dwProcessId); public const uint MEM_COMMIT = 0x1000; public const uint MEM_RELEASE = 0x8000; public const uint MEM_RESERVE = 0x2000; public const uint PAGE_READWRITE= 4; [DllImport("kernel32.dll")] public static extern IntPtr VirtualAllocEx(IntPtr hProcess, IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect); [DllImport("kernel32.dll")] public static extern bool VirtualFreeEx(IntPtr hProcess, IntPtr lpAddress, uint dwSize, uint dwFreeType); [DllImport("kernel32.dll")] public static extern bool CloseHandle(IntPtr handle); [DllImport("kernel32.dll")] public static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, IntPtr lpBuffer, int nSize, ref uint vNumberOfBytesRead); public const int WM_USER = 0x0400; public const int TB_BUTTONCOUNT= WM_USER + 24; public const int TB_GETBUTTONTEXTW = WM_USER + 75; private void button1_Click(object sender, EventArgs e) { IntPtr vHandle = FindWindow("Shell_TrayWnd", null); vHandle = FindWindowEx(vHandle, IntPtr.Zero, "ReBarWindow32", null); vHandle = FindWindowEx(vHandle, IntPtr.Zero, "MSTaskSwWClass", null); vHandle = FindWindowEx(vHandle, IntPtr.Zero, "ToolbarWindow32", null); int vCount = SendMessage(vHandle, TB_BUTTONCOUNT, 0, 0); uint vProcessId; GetWindowThreadProcessId(vHandle, out vProcessId); IntPtr vProcess = OpenProcess(PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE, false, vProcessId); IntPtr vPointer = VirtualAllocEx(vProcess, IntPtr.Zero, 0x1000, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); char[] vBuffer = new char[256]; uint vNumberOfBytesRead = 0; try { for (int i = 0; i < vCount; i++) { SendMessage(vHandle, TB_GETBUTTONTEXTW, i, vPointer.ToInt32()); ReadProcessMemory(vProcess, vPointer, Marshal.UnsafeAddrOfPinnedArrayElement(vBuffer, 0), vBuffer.Length * sizeof(char), ref vNumberOfBytesRead); int l = 0; for (int j = 0; j < vBuffer.Length; j++) { if (vBuffer[j] == (char)0) { l = j; break; } } Console.WriteLine(new string(vBuffer, 0, l)); } } finally { VirtualFreeEx(vProcess, vPointer, 0, MEM_RELEASE); CloseHandle(vProcess); } }