TestScrollTest

代码说明：

  一个简单的SDI工程，里边实现在对话框上添加滚动条，并相应滚动条事件。运行时，请在file菜单下点击两次新建操作，弹出对话框，然后缩放对话框，减小到一定大小就会出现滚动条就能看到滚动条效果。(A simple SDI project, inside the realization of the dialog box to add a scroll bar, and the corresponding scroll bar event. Run, please click on the file menu under the new operation, pop-up dialog box, and then zoom dialog box, reduced to a certain size will appear rolling bar will be able to see the scroll bar effect.)