获取任务栏上程序运行个数

2007-09-04 11:25:51 214 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

数学建模竞赛解题方法论：从问题拆解到模型构建的完整指南数学建模是将现实世界复杂问题抽象为数学问题并求解的核心方法，其关键在于通过数学语言描述系统行为与内在规律。建模过程通常遵循问题定义、模型选择、算法设计、求解验证的逻辑链条，其技术价值在于为决策提供量化依据与优化方案。在工程优化、资源调度、趋势预测等场景中，数学建模是解决多变量、多约束系统性问题的基石。本文聚焦于数学建模竞赛的高效应对，深入剖析问题拆解、模型构建与团队协作等关键环节，旨在提供一套清晰的实战框架与策略，帮助参赛者提升解题的系统性与效率。阅读详情

例如:打开一个Excel程序,新建了很多的文档,Book1,Book2,Book3,Book4....
在任务栏上也会显示出Book1,Book2,Book3,Book4....
我怎么能获取有多少个Book文档存在任务栏上呢?

...全文

数学建模竞赛：从模型泛化到系统备赛的国奖进阶指南数学建模是将现实问题抽象为数学语言，并通过算法求解的核心技术。其原理在于运用优化、预测、评价等数学模型，结合编程工具对问题进行解构与量化分析。这项技术的价值在于培养解决复杂实际问题的系统思维与工程实现能力，广泛应用于科学研究、工程优化、金融分析和决策支持等领域。本文聚焦于全国大学生数学建模竞赛，深入探讨如何通过构建系统的知识体系和科学的备赛流程，将模型泛化能力与团队协作相结合，从而在高压的72小时竞赛中，高效地产出高质量的解决方案，提升冲击国家级奖项的竞争力。阅读详情

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bigeyescat 2007-09-04

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参考如下代码
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);
}
}

获取任务栏上程序运行个数

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