: please give me an example program for the screen program or making a program in C using screen function to create or draw a border around the screen for perspective and inside the box theres a triangle and inside the triangle has a text. please help me!!!
Well, I'll help you but you'll have to give it a try first

Read the documentation you may have on the Borland graphics.h file. Or search the Borland webpage for information. Turbo C was designed for DOS and the graphics.h and its library had many functions to make different simple graphics in DOS screens. Post some code when you've made a start and I'll help you as much as I can.