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windows: add Get*PreferredUILanguages

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This commit adds the following MUI functions:
- GetUserPreferredUILanguages
- GetSystemPreferredUILanguages
- GetThreadPreferredUILanguages
- GetProcessPreferredUILanguages

Change-Id: I44f1c07245ab814935778c6b910b224d24cc753c
Reviewed-on: https://go-review.googlesource.com/c/sys/+/207860
Reviewed-by: Simon Rozman <simon@rozman.si>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Simon Rozman
2019-11-20 09:40:32 +01:00
committed by Jason A. Donenfeld
parent f068ffe820
commit 6bfc516c86
4 changed files with 167 additions and 0 deletions
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55
windows/syscall_windows.go
View File

@@ -313,6 +313,10 @@ func NewCallbackCDecl(fn interface{}) uintptr {
//sys CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree
//sys rtlGetVersion(info *OsVersionInfoEx) (ret error) = ntdll.RtlGetVersion
//sys rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers
//sys getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages
//sys getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages
//sys getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages
//sys getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages
// Process Status API (PSAPI)
//sys EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses
@@ -1378,3 +1382,54 @@ func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) {
buildNumber &= 0xffff
return
}
// GetProcessPreferredUILanguages retrieves the process preferred UI languages.
func GetProcessPreferredUILanguages(flags uint32) ([]string, error) {
return getUILanguages(flags, getProcessPreferredUILanguages)
}
// GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread.
func GetThreadPreferredUILanguages(flags uint32) ([]string, error) {
return getUILanguages(flags, getThreadPreferredUILanguages)
}
// GetUserPreferredUILanguages retrieves information about the user preferred UI languages.
func GetUserPreferredUILanguages(flags uint32) ([]string, error) {
return getUILanguages(flags, getUserPreferredUILanguages)
}
// GetSystemPreferredUILanguages retrieves the system preferred UI languages.
func GetSystemPreferredUILanguages(flags uint32) ([]string, error) {
return getUILanguages(flags, getSystemPreferredUILanguages)
}
func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) {
size := uint32(128)
for {
var numLanguages uint32
buf := make([]uint16, size)
err := f(flags, &numLanguages, &buf[0], &size)
if err == ERROR_INSUFFICIENT_BUFFER {
continue
}
if err != nil {
return nil, err
}
buf = buf[:size]
if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0"
return []string{}, nil
}
if buf[len(buf)-1] == 0 {
buf = buf[:len(buf)-1] // remove terminating null
}
languages := make([]string, 0, numLanguages)
from := 0
for i, c := range buf {
if c == 0 {
languages = append(languages, string(utf16.Decode(buf[from:i])))
from = i + 1
}
}
return languages, nil
}
}

27
windows/syscall_windows_test.go
View File

@@ -10,6 +10,7 @@ import (
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"syscall"
"testing"
@@ -377,3 +378,29 @@ func TestGetDiskFreeSpaceEx(t *testing.T) {
t.Errorf("totalNumberOfFreeBytes: got 0; want > 0")
}
}
func TestGetPreferredUILanguages(t *testing.T) {
tab := map[string]func(flags uint32) ([]string, error){
"GetProcessPreferredUILanguages": windows.GetProcessPreferredUILanguages,
"GetThreadPreferredUILanguages": windows.GetThreadPreferredUILanguages,
"GetUserPreferredUILanguages": windows.GetUserPreferredUILanguages,
"GetSystemPreferredUILanguages": windows.GetSystemPreferredUILanguages,
}
for fName, f := range tab {
lang, err := f(windows.MUI_LANGUAGE_ID)
if err != nil {
t.Errorf(`failed to call %v(MUI_LANGUAGE_ID): %v`, fName, err)
}
for _, l := range lang {
_, err := strconv.ParseUint(l, 16, 16)
if err != nil {
t.Errorf(`%v(MUI_LANGUAGE_ID) returned unexpected LANGID: %v`, fName, l)
}
}
lang, err = f(windows.MUI_LANGUAGE_NAME)
if err != nil {
t.Errorf(`failed to call %v(MUI_LANGUAGE_NAME): %v`, fName, err)
}
}
}

33
windows/types_windows.go
View File

@@ -1742,3 +1742,36 @@ const (
GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT = 2
GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS = 4
)
// MUI function flag values
const (
MUI_LANGUAGE_ID = 0x4
MUI_LANGUAGE_NAME = 0x8
MUI_MERGE_SYSTEM_FALLBACK = 0x10
MUI_MERGE_USER_FALLBACK = 0x20
MUI_UI_FALLBACK = MUI_MERGE_SYSTEM_FALLBACK | MUI_MERGE_USER_FALLBACK
MUI_THREAD_LANGUAGES = 0x40
MUI_CONSOLE_FILTER = 0x100
MUI_COMPLEX_SCRIPT_FILTER = 0x200
MUI_RESET_FILTERS = 0x001
MUI_USER_PREFERRED_UI_LANGUAGES = 0x10
MUI_USE_INSTALLED_LANGUAGES = 0x20
MUI_USE_SEARCH_ALL_LANGUAGES = 0x40
MUI_LANG_NEUTRAL_PE_FILE = 0x100
MUI_NON_LANG_NEUTRAL_FILE = 0x200
MUI_MACHINE_LANGUAGE_SETTINGS = 0x400
MUI_FILETYPE_NOT_LANGUAGE_NEUTRAL = 0x001
MUI_FILETYPE_LANGUAGE_NEUTRAL_MAIN = 0x002
MUI_FILETYPE_LANGUAGE_NEUTRAL_MUI = 0x004
MUI_QUERY_TYPE = 0x001
MUI_QUERY_CHECKSUM = 0x002
MUI_QUERY_LANGUAGE_NAME = 0x004
MUI_QUERY_RESOURCE_TYPES = 0x008
MUI_FILEINFO_VERSION = 0x001
MUI_FULL_LANGUAGE = 0x01
MUI_PARTIAL_LANGUAGE = 0x02
MUI_LIP_LANGUAGE = 0x04
MUI_LANGUAGE_INSTALLED = 0x20
MUI_LANGUAGE_LICENSED = 0x40
)

52
windows/zsyscall_windows.go
View File

@@ -248,6 +248,10 @@ var (
procCoTaskMemFree = modole32.NewProc("CoTaskMemFree")
procRtlGetVersion = modntdll.NewProc("RtlGetVersion")
procRtlGetNtVersionNumbers = modntdll.NewProc("RtlGetNtVersionNumbers")
procGetProcessPreferredUILanguages = modkernel32.NewProc("GetProcessPreferredUILanguages")
procGetThreadPreferredUILanguages = modkernel32.NewProc("GetThreadPreferredUILanguages")
procGetUserPreferredUILanguages = modkernel32.NewProc("GetUserPreferredUILanguages")
procGetSystemPreferredUILanguages = modkernel32.NewProc("GetSystemPreferredUILanguages")
procEnumProcesses = modpsapi.NewProc("EnumProcesses")
procWSAStartup = modws2_32.NewProc("WSAStartup")
procWSACleanup = modws2_32.NewProc("WSACleanup")
@@ -2760,6 +2764,54 @@ func rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNum
return
}
func getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procGetProcessPreferredUILanguages.Addr(), 4, uintptr(flags), uintptr(unsafe.Pointer(numLanguages)), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(bufSize)), 0, 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procGetThreadPreferredUILanguages.Addr(), 4, uintptr(flags), uintptr(unsafe.Pointer(numLanguages)), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(bufSize)), 0, 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procGetUserPreferredUILanguages.Addr(), 4, uintptr(flags), uintptr(unsafe.Pointer(numLanguages)), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(bufSize)), 0, 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procGetSystemPreferredUILanguages.Addr(), 4, uintptr(flags), uintptr(unsafe.Pointer(numLanguages)), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(bufSize)), 0, 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) {
var _p0 *uint32
if len(processIds) > 0 {