C# 遍历所有 窗体句柄 源码

【核心代码】

    #region 遍历窗体类
//    using System; 
//using System.Runtime.InteropServices; 
//using System.Text; 
//using System.Collections.Generic; 

public class CSharpAPIsDemo 
{ 
private delegate bool WNDENUMPROC(IntPtr hWnd, int lParam); 
[DllImport("user32.dll")] 
private static extern bool EnumWindows(WNDENUMPROC lpEnumFunc, int lParam); 
//[DllImport("user32.dll")] 
//private static extern IntPtr FindWindowW(string lpClassName, string lpWindowName); 
[DllImport("user32.dll")] 
private static extern int GetWindowTextW(IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)]StringBuilder lpString, int nMaxCount); 
[DllImport("user32.dll")] 
private static extern int GetClassNameW(IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)]StringBuilder lpString, int nMaxCount); 

public struct WindowInfo 
{ 
public IntPtr hWnd; 
public string szWindowName; 
public string szClassName; 
} 

public WindowInfo[] GetAllDesktopWindows() 
{ 
List<WindowInfo> wndList = new List<WindowInfo>(); 

//enum all desktop windows 
EnumWindows(delegate(IntPtr hWnd, int lParam) 
{ 
WindowInfo wnd = new WindowInfo(); 
StringBuilder sb = new StringBuilder(256); 
//get hwnd 
wnd.hWnd = hWnd; 
//get window name 
GetWindowTextW(hWnd, sb, sb.Capacity); 
wnd.szWindowName = sb.ToString(); 
//get window class 
GetClassNameW(hWnd, sb, sb.Capacity); 
wnd.szClassName = sb.ToString(); 
//add it into list 
if (wnd.szWindowName.IndexOf("QQ2013") != -1)
{
    WindowInfo aa = wnd;
}
wndList.Add(wnd); 
return true; 
}, 0); 

return wndList.ToArray(); 
} 
}

    #endregion