运用BitBlt函数实现多种图片出现效果

Using BitBlt Function to Realize Various Effects of the Picture Appearing

调用BitBlt函数将第一个图片框中的图形一部分一部分地复制到第二个图片框中 ,通过改变复制的顺序、方向 ,实现各种图片特效 .给出了“从上到下、开门、百叶窗、逐段翻开”

Copy a picture bit by bit from one picture box to anther picture box by using BitBlt function.Realize various effects of the picture appearing by changing order and the direction while copying. The principle and the source program are given to realize four kinds special effects, they are “from upside to underside, open the door, shutter and turn inside out bit by bit'.