Windows API 设置窗口下控件Enable属性

2017-01-05 20:04:23来源:cnblogs.com作者:老乌尼人点击

相关接口C#互操作封送处理

    [DllImport("user32.dll")]    unsafe public static extern bool UpdateWindow(IntPtr hWnd);//更新窗口    [DllImport("user32.dll")]    unsafe public static extern bool EnableWindow(IntPtr hWnd, bool bEnable);//设置Enable属性    [DllImport("user32.dll")]    unsafe public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);//查找窗口/控件

NOTE:
【FindWindowEx】:https://msdn.microsoft.com/en-us/library/ms633500(VS.85).aspx
【UpdateWindow】:https://msdn.microsoft.com/library/windows/desktop/dd145167
【FindWindowEx】:https://msdn.microsoft.com/en-us/library/windows/desktop/ms646291(v=vs.85).aspx

获取窗口子控件句柄代码段

  private List<IntPtr> GetAllChildrenWindowHandles(IntPtr hParent, int maxCount)  {      var handles = new List<IntPtr>();      int ct = 0;      IntPtr prevChild = IntPtr.Zero;      IntPtr currChild = IntPtr.Zero;      while (true && ct < maxCount)      {          currChild = FindWindowEx(hParent, prevChild, null, null);          if (currChild == IntPtr.Zero) break;          handles.Add(currChild);          prevChild = currChild;          ++ct;      }      return handles;  }



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