You can try this Go library by mischief and some examples in the cmd package:
https://bitbucket.org/mischief/draw9/src/default/

Thank you, thank you! Here is the Go version of black.c:

package main

import (

	"bitbucket.org/mischief/draw9"

	"fmt"

	"image"

	"log"

	"time"

)

func main() {

	disp, err := draw9.InitDraw(nil, "", "black")

	if err != nil {

		log.Fatal(err)

}

	screen := disp.ScreenImage

	rect := screen.R

	black := disp.Black

	screen.Draw(rect, black, nil, image.ZP)

	disp.Flush()

	time.Sleep(5 * time.Second)

	disp.Close()

	fmt.Println("rectangle was", rect)

}

One minor issue: the window is white after the program exits. Text doesn’t show until I hit the up and down arrow keys.

Kim