????#region?遍歷窗體類
//????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）;?

publi