Dos保护模式下的图形驱动程序，功能很多。如多种格式图像显示，TTF字体支持等

ALLEGTTF is a collection of functions to produce anti-aliased text output and TTF (True Type Font) loader, a GRX font loader and a bitmap font loader for use with Allegro. Antialiased text means that fonts have soft edges and blend into their backgro

ttf文字描述，以及拖动，描述，变换，缩放-ttf text descr iptions, as well as drag, descr iption, transformation, zoom, etc.