This code shows how to draw a selection box (i.e., the dotted lines that appear in some graphics programs around a picture when it is selected). Use the mouse to draw a box on the picture box.
来源: http://www.freevbcode.com/ShowCode.Asp?ID=697
这个代码显示了如何绘制一个选择框(例如,在一些图片的环绕图形程序中,当线条被选择时显示为带点的线条)。使用鼠标在图片框中绘制一个框。