Windows API Implementation In Go Sample Code (Change Console Text Color)

test.go

package main

import (
	"fmt"
	"syscall"
	"unsafe"
)

const (
	FOREGROUND_BLACK uint16 = 0x0000
	FOREGROUND_BLUE uint16 = 0x0001
	FOREGROUND_GREEN uint16 = 0x0002
	FOREGROUND_CYAN uint16 = 0x0003
	FOREGROUND_RED uint16 = 0x0004
	FOREGROUND_PURPLE uint16 = 0x0005
	FOREGROUND_YELLOW uint16 = 0x0006
	FOREGROUND_WHITE uint16 = 0x0007
)

type (
	SHORT int16
	WORD uint16
	SMALL_RECT struct {
		Left SHORT
		Top SHORT
		Right SHORT
		Bottom SHORT
	}
	COORD struct {
		X SHORT
		Y SHORT
	}
	CONSOLE_SCREEN_BUFFER_INFO struct {
		Size COORD
		CursorPosition COORD
		Attributes WORD
		Window SMALL_RECT
		MaximumWindowSize COORD
	}
)

func main() {
	var consoleInfo CONSOLE_SCREEN_BUFFER_INFO

	kernel32 := syscall.NewLazyDLL("kernel32.dll")
	getConsoleScreenBufferInfoProc := kernel32.NewProc("GetConsoleScreenBufferInfo")
	setConsoleTextAttributeProc := kernel32.NewProc("SetConsoleTextAttribute")
	handle, _ := syscall.GetStdHandle(syscall.STD_OUTPUT_HANDLE)
	_, _, _ = getConsoleScreenBufferInfoProc.Call(uintptr(handle), uintptr(unsafe.Pointer(&consoleInfo)), 0)

	fmt.Println("Original Color")

	//set to yellow
	_, _, _ = setConsoleTextAttributeProc.Call(uintptr(handle), uintptr(FOREGROUND_YELLOW), 0)

	fmt.Println("Yellow Color")

	//set to red
	_, _, _ = setConsoleTextAttributeProc.Call(uintptr(handle), uintptr(FOREGROUND_RED), 0)
	fmt.Println("Red Color")

	//set to original
	_, _, _ = setConsoleTextAttributeProc.Call(uintptr(handle), uintptr(consoleInfo.Attributes), 0)
	
}