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// +build windows
package jibber_jabber
import (
"errors"
"syscall"
"unsafe"
)
const LOCALE_NAME_MAX_LENGTH uint32 = 85
var SUPPORTED_LOCALES = map[uintptr]string{
0x0407: "de-DE",
0x0409: "en-US",
0x0c0a: "es-ES", //or is it 0x040a
0x040c: "fr-FR",
0x0410: "it-IT",
0x0411: "ja-JA",
0x0412: "ko_KR",
0x0416: "pt-BR",
//0x0419: "ru_RU", - Will add support for Russian when nicksnyder/go-i18n supports Russian
0x0804: "zh-CN",
0x0c04: "zh-HK",
0x0404: "zh-TW",
}
func getWindowsLocaleFrom(sysCall string) (locale string, err error) {
buffer := make([]uint16, LOCALE_NAME_MAX_LENGTH)
dll := syscall.MustLoadDLL("kernel32")
proc := dll.MustFindProc(sysCall)
r, _, dllError := proc.Call(uintptr(unsafe.Pointer(&buffer[0])), uintptr(LOCALE_NAME_MAX_LENGTH))
if r == 0 {
err = errors.New(COULD_NOT_DETECT_PACKAGE_ERROR_MESSAGE + ":\n" + dllError.Error())
return
}
locale = syscall.UTF16ToString(buffer)
return
}
func getAllWindowsLocaleFrom(sysCall string) (string, error) {
dll, err := syscall.LoadDLL("kernel32")
if err != nil {
return "", errors.New("Could not find kernel32 dll")
}
proc, err := dll.FindProc(sysCall)
if err != nil {
return "", err
}
locale, _, dllError := proc.Call()
if locale == 0 {
return "", errors.New(COULD_NOT_DETECT_PACKAGE_ERROR_MESSAGE + ":\n" + dllError.Error())
}
return SUPPORTED_LOCALES[locale], nil
}
func getWindowsLocale() (locale string, err error) {
dll, err := syscall.LoadDLL("kernel32")
if err != nil {
return "", errors.New("Could not find kernel32 dll")
}
proc, err := dll.FindProc("GetVersion")
if err != nil {
return "", err
}
v, _, _ := proc.Call()
windowsVersion := byte(v)
isVistaOrGreater := (windowsVersion >= 6)
if isVistaOrGreater {
locale, err = getWindowsLocaleFrom("GetUserDefaultLocaleName")
if err != nil {
locale, err = getWindowsLocaleFrom("GetSystemDefaultLocaleName")
}
} else if !isVistaOrGreater {
locale, err = getAllWindowsLocaleFrom("GetUserDefaultLCID")
if err != nil {
locale, err = getAllWindowsLocaleFrom("GetSystemDefaultLCID")
}
} else {
panic(v)
}
return
}
func DetectIETF() (locale string, err error) {
locale, err = getWindowsLocale()
return
}
func DetectLanguage() (language string, err error) {
windows_locale, err := getWindowsLocale()
if err == nil {
language, _ = splitLocale(windows_locale)
}
return
}
func DetectTerritory() (territory string, err error) {
windows_locale, err := getWindowsLocale()
if err == nil {
_, territory = splitLocale(windows_locale)
}
return
}
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