Reading column : the impact of ukiyoe paintings 读物专栏浮世绘所带来的影响
2.
Event handler . the drawn content will not be redrawn if the form is resized or obscured by another form 如果已调整该窗体的大小或者其他窗体遮蔽了该窗体，则不会重绘所绘制的内容。
3.
Buffered graphics can reduce or eliminate flicker that is caused by progressive redrawing of parts of a displayed surface 缓冲图形可以减少或消除由于不断重绘所显示图面的某些部分而导致的闪烁。
