Question

C# 怎么用WINDOW API

一个外部程序窗体中有两个TLlistView TListView是放在TPanel中的
要怎么过滤掉TPanel 直接取到TLlistView中的文本数据呢

已知这个外部窗体的句柄
能给个例子吗 刚接触api 也没找到 C#相关的示例~实在弄不明白

Answer 1

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 WindowsApplication3
{
public partial class Form2 : Form
{
public delegate int EnumWindowsCallBack(IntPtr hwnd, IntPtr lParam);

[DllImport("User32.dll")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("user32")]
public static extern int EnumChildWindows(IntPtr hwndParent, EnumWindowsCallBack lpEnumFunc, int lParam);

[DllImport("user32", EntryPoint = "GetWindowText")]
public static extern int GetWindowTextA(IntPtr hwnd, StringBuilder lpString, int cch);

private EnumWindowsCallBack CallBackProc = null;

public Form2()
{
InitializeComponent();
CallBackProc = new EnumWindowsCallBack(this.EnumProc);
}

private void button2_Click(object sender, EventArgs e)
{
IntPtr hwnd = FindWindow("","");
EnumChildWindows(hwnd, this.CallBackProc, 0);
}

public int EnumProc(IntPtr hWnd, IntPtr lParam) {
StringBuilder title = new StringBuilder(256);
GetWindowTextA(hWnd, title, 256);
this.textBox1.Text += title + "\n";

return 0;
}
}
}

里面的条件你自己写了

Answer 2

DllImport("msvcrt.dll", SetLastError=true)]
static extern IntPtr fopen(String filename, String mode);

给个例子: www.pinvoke.net