File: runewidth_windows.go

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golang-github-mattn-go-runewidth 0.0.1-1~bpo8%2B1
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package runewidth

import (
	"syscall"
)

var (
	kernel32               = syscall.NewLazyDLL("kernel32")
	procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP")
)

func IsEastAsian() bool {
	r1, _, _ := procGetConsoleOutputCP.Call()
	if r1 == 0 {
		return false
	}

	switch int(r1) {
	case 932, 51932, 936, 949, 950:
		return true
	}

	return false
}