C#调用 win32遍历win桌面控件的算法

private static int level=0
public static int FindGUILike(ref int hWndArray,int hWndStart,ref string windowText,ref string className,ref string parentText)
{
int hwnd=0;
int r=0;
StringBuilder sWindowText=new StringBuilder();
StringBuilder sClassname=new StringBuilder();
StringBuilder sParentText=new StringBuilder();
if(level==0)
{
  hWndTarget=0;
  if(hWndTarget==0) hWndStart = GetDesktopWindow();
}
level=level+1;
hwnd=GetWindow(hWndStart,GW_CHILD);
while(hwnd!=0)
{
   r=Find
}
}