Walk is a "Windows Application Library Kit" for the Go Programming Language.

Its focus is graphical user interfaces but there is some more stuff.

Make sure you have a working Go installation. See Getting Started

Now run go get github.com/lxn/walk

The preferred way to create GUIs with Walk is to use its declarative sub package, as illustrated in this small example:

package main

import (
	"github.com/lxn/walk"
	. "github.com/lxn/walk/declarative"
	"strings"
)

func main() {
	var inTE, outTE *walk.TextEdit

	MainWindow{
		Title:   "SCREAMO",
		MinSize: Size{600, 400},
		Layout:  VBox{},
		Children: []Widget{
			Splitter{
				Children: []Widget{
					TextEdit{AssignTo: &inTE},
					TextEdit{AssignTo: &outTE, ReadOnly: true},
				},
			},
			PushButton{
				Text: "SCREAM",
				OnClicked: func() {
					outTE.SetText(strings.ToUpper(inTE.Text()))
				},
			},
		},
	}.Run()
}

There are some examples that should get you started.

Some features of Walk require an application manifest file alongside your executable to use Common Controls 6. See the examples directory for such a file.