通过内存DC来平滑的显示多行滚动的字幕，可以控制背景的颜色，字体的大小，滚动的速度-through memory DC to smooth the show rolling over the subtitles will be able to control the background color, font size, the speed rolling

通过内存DC来平滑的显示多行滚动的字幕，可以控制背景的颜色，字体的大小，滚动的速度-through memory DC to smooth the show rolling over the subtitles will be able to control the background color, font size, the speed rolling

VC++ 平滑文字滚动，垂直向上，仿电影字幕，基于对话框内，多行文字循环向上滚动，比较平滑的文字滚动效果，这是竖直滚动版的-VC++ smooth scrolling text, vertically upward, fake movie subtitles, based on the dialog box, scroll up multi-line text loop, relatively smooth text scrolling