Beginner needs help

hi all, i'm going to start again programming under linux. all i had done before this was some programs for DOS (i've been using linux for just a year) with Borland Pascal. now in linux i'd like to start programming again, but there are some functions that i can't find, and that i can't implement. for example, i need something as "delay(milliseconds)" but i can't find anything similar. ok, in C, i'd use "usleep()", but what in Pascal? and, for example, again, "textcolor and textbackground" ? readkey? keypressed? and how to use Svgalib instead os DOS' BGI ? please help me ASAP. thanks in advance. -- Nicola Girardi girardi(at)keycomm.it Key fingerprint = CD 7D 57 C2 52 73 67 B5 13 48 AA 8C 3E 7F 13 DC