MFC实现的自绘按钮、自绘下拉菜单和自绘滑动条

[{"title":"（ 156 个子文件 3.04MB ） MFC实现的自绘按钮、自绘下拉菜单和自绘滑动条","children":[{"title":"TestButton.pdb <span style='color:#111;'> 5.00MB </span>","children":null,"spread":false},{"title":"TestButton.ilk <span style='color:#111;'> 1.33MB </span>","children":null,"spread":false},{"title":"TestButton.exe <span style='color:#111;'> 1.45MB </span>","children":null,"spread":false},{"title":"TestButton.suo <span style='color:#111;'> 23.00KB </span>","children":null,"spread":false},{"title":"TestButton.pdb <span style='color:#111;'> 4.36MB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]