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langswitch.cpp
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#include <Windows.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#define LOW(n) (n & 0x0000FFFF)
#define HIGH(n) ((n & 0xFFFF0000) >> 16)
struct Layout {
static const size_t SHORT_NAME_LEN = 32;
static const size_t FULL_NAME_LEN = 60;
char short_name[SHORT_NAME_LEN];
char full_name[FULL_NAME_LEN];
uint32_t id_lkid;
uint32_t id_hkl;
const char* get_name(bool always_full = false) const {
if (!always_full && strnlen(short_name, SHORT_NAME_LEN)) {
return short_name;
}
else return full_name;
}
};
// short name can be specified in 1st column
// sources:
// https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-language-pack-default-values?view=windows-10 for id_lkid
// registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layouts for id_hkl
const Layout layouts[] = {
{ "", "Albanian", 0x0000041c, 0x041c041c },
{ "", "Arabic (101)", 0x00000401, 0x04010401 },
{ "", "Arabic (102)", 0x00010401, 0xf0280401 },
{ "", "Arabic (102) AZERTY", 0x00020401, 0xf0290401 },
{ "", "Armenian Eastern", 0x0000042b, 0x042b042b },
{ "", "Armenian Phonetic", 0x0002042b, 0xf038042b },
{ "", "Armenian Typewriter", 0x0003042b, 0xf039042b },
{ "", "Armenian Western", 0x0001042b, 0xf025042b },
{ "", "Assamese - Inscript", 0x0000044d, 0x044d044d },
{ "", "Azerbaijani (Standard)", 0x0001042c, 0xf0bd042c },
{ "", "Azerbaijani Cyrillic", 0x0000082c, 0x082c082c },
{ "", "Azerbaijani Latin", 0x0000042c, 0x042c042c },
{ "", "Bashkir", 0x0000046d, 0x046d046d },
{ "", "Belarusian", 0x00000423, 0x04230423 },
{ "", "Belgian (Comma)", 0x0001080c, 0xf01e080c },
{ "", "Belgian (Period)", 0x00000813, 0x08130813 },
{ "", "Belgian French", 0x0000080c, 0x080c080c },
{ "", "Bangla (Bangladesh)", 0x00000445, 0x04450445 },
{ "", "Bangla (India)", 0x00020445, 0x04450445 },
{ "", "Bangla (India - Legacy)", 0x00010445, 0x04450445 },
{ "", "Bosnian (Cyrillic)", 0x0000201a, 0x201a201a },
{ "", "Buginese", 0x000b0c00, 0xf0b30c00 },
{ "", "Bulgarian", 0x0030402 , 0xf0aa0402 },
{ "", "Bulgarian (Latin)", 0x00010402, 0xf0040402 },
{ "", "Bulgarian (phonetic layout)", 0x00020402, 0x04020402 },
{ "", "Bulgarian (phonetic traditional)", 0x00040402, 0xf0af0402 },
{ "", "Bulgarian (Typewriter)", 0x00000402, 0x04020402 },
{ "", "Canadian French", 0x00001009, 0x10091009 },
{ "", "Canadian French (Legacy)", 0x00000c0c, 0x0c0c0c0c },
{ "", "Canadian Multilingual Standard", 0x00011009, 0xf0201009 },
{ "", "Central Atlas Tamazight", 0x0000085f, 0x085f085f },
{ "", "Central Kurdish", 0x00000429, 0x04290429 },
{ "", "Cherokee Nation", 0x0000045c, 0x045c045c },
{ "", "Cherokee Nation Phonetic", 0x0001045c, 0xf037045c },
{ "", "Chinese (Simplified) - US Keyboard", 0x00000804, 0x08040804 },
{ "", "Chinese (Traditional) - US Keyboard", 0x00000404, 0x04040404 },
{ "", "Chinese (Traditional, Hong Kong S.A.R.)", 0x00000c04, 0x0c040c04 },
{ "", "Chinese (Traditional Macao S.A.R.) US Keyboard", 0x00001404, 0x14041404 },
{ "", "Chinese (Simplified, Singapore) - US keyboard", 0x00001004, 0x10041004 },
{ "", "Croatian", 0x0000041a, 0x041a041a },
{ "", "Czech", 0x00000405, 0x04050405 },
{ "", "Czech (QWERTY)", 0x00010405, 0xf0050405 },
{ "", "Czech Programmers", 0x00020405, 0xf00a0405 },
{ "", "Danish", 0x00000406, 0x04060406 },
{ "", "Devanagari-INSCRIPT", 0x00000439, 0x04390439 },
{ "", "Divehi Phonetic", 0x00000465, 0x04650465 },
{ "", "Divehi Typewriter", 0x00010465, 0xf00d0465 },
{ "", "Dutch", 0x00000413, 0x04130413 },
{ "", "Dzongkha", 0x00000C51, 0x0c510c51 },
{ "", "Estonian", 0x00000425, 0x04250425 },
{ "", "Faeroese", 0x00000438, 0x04380438 },
{ "", "Finnish", 0x0000040b, 0x040b040b },
{ "", "Finnish with Sami", 0x0001083b, 0xf02d083b },
{ "", "French", 0x0000040c, 0x040c040c },
{ "", "Futhark", 0x00120c00, 0xf0bb0c00 },
{ "", "Georgian", 0x00000437, 0x04370437 },
{ "", "Georgian (Ergonomic)", 0x00020437, 0xf0ac0437 },
{ "", "Georgian (QWERTY)", 0x00010437, 0xf0ab0437 },
{ "", "Georgian Ministry of Education and Science Schools", 0x00030437, 0xf03b0437 },
{ "", "Georgian (Old Alphabets)", 0x00040437, 0xf03c0437 },
{ "", "German", 0x00000407, 0x04070407 },
{ "", "German (IBM)", 0x00010407, 0xf0120407 },
{ "", "Gothic", 0x000c0c00, 0xf0b40c00 },
{ "", "Greek", 0x00000408, 0x04080408 },
{ "", "Greek (220)", 0x00010408, 0xf0160408 },
{ "", "Greek (220) Latin", 0x00030408, 0xf0170408 },
{ "", "Greek (319)", 0x00020408, 0xf0180408 },
{ "", "Greek (319) Latin", 0x00040408, 0xf0110408 },
{ "", "Greek Latin", 0x00050408, 0xf0190408 },
{ "", "Greek Polytonic", 0x00060408, 0xf01f0408 },
{ "", "Greenlandic", 0x0000046f, 0x046f046f },
{ "", "Guarani", 0x00000474, 0x04740474 },
{ "", "Gujarati", 0x00000447, 0x04470447 },
{ "", "Hausa", 0x00000468, 0x04680468 },
{ "", "Hebrew", 0x0000040d, 0x040d040d },
{ "", "Hindi Traditional", 0x00010439, 0xf00c0439 },
{ "", "Hungarian", 0x0000040e, 0x040e040e },
{ "", "Hungarian 101-key", 0x0001040e, 0xf006040e },
{ "", "Icelandic", 0x0000040f, 0x040f040f },
{ "", "Igbo", 0x00000470, 0x04700470 },
{ "", "India", 0x00004009, 0x40094009 },
{ "", "Inuktitut - Latin", 0x0000085d, 0x085d085d },
{ "", "Inuktitut - Naqittaut", 0x0001045d, 0xf0a7045d },
{ "", "Irish", 0x00001809, 0x18091809 },
{ "", "Italian", 0x00000410, 0x04100410 },
{ "", "Italian (142)", 0x00010410, 0xf0030410 },
{ "ja-JP", "Japanese", 0x00000411, 0x04110411 },
{ "", "Javanese", 0x00110c00, 0xf0ba0c00 },
{ "", "Kannada", 0x0000044b, 0x044b044b },
{ "", "Kazakh", 0x0000043f, 0x043f043f },
{ "", "Khmer", 0x00000453, 0x04530453 },
{ "", "Khmer (NIDA)", 0x00010453, 0xf02f0453 },
{ "", "Korean", 0x00000412, 0x04120412 },
{ "", "Kyrgyz Cyrillic", 0x00000440, 0x04400440 },
{ "", "Lao", 0x00000454, 0x04540454 },
{ "", "Latin American", 0x0000080a, 0x080a080a },
{ "", "Latvian (Standard)", 0x00020426, 0xf0b10426 },
{ "", "Latvian (Legacy)", 0x00010426, 0x04260426 },
{ "", "Lisu (Basic)", 0x00070c00, 0xf03e0c00 },
{ "", "Lisu (Standard)", 0x00080c00, 0xf03f0c00 },
{ "", "Lithuanian", 0x00010427, 0xf0270427 },
{ "", "Lithuanian IBM", 0x00000427, 0x04270427 },
{ "", "Lithuanian Standard", 0x00020427, 0xf0a10427 },
{ "", "Luxembourgish", 0x0000046e, 0x046e046e },
{ "", "Macedonia (FYROM)", 0x0000042f, 0x042f042f },
{ "", "Macedonia (FYROM) - Standard", 0x0001042f, 0x042f042f },
{ "", "Malayalam", 0x0000044c, 0x044c044c },
{ "", "Maltese 47-Key", 0x0000043a, 0x043a043a },
{ "", "Maltese 48-key", 0x0001043a, 0xf02b043a },
{ "", "Maori", 0x00000481, 0x04810481 },
{ "", "Marathi", 0x0000044e, 0x044e044e },
{ "", "Mongolian (Mongolian Script - Legacy)", 0x00000850, 0x08500850 },
{ "", "Mongolian (Mongolian Script - Standard)", 0x00020850, 0x08500850 },
{ "", "Mongolian Cyrillic", 0x00000450, 0x04500450 },
{ "", "Myanmar", 0x00010c00, 0x0c000c00 },
{ "", "N'ko", 0x00090c00, 0x0c000c00 },
{ "", "Nepali", 0x00000461, 0x04610461 },
{ "", "New Tai Lue", 0x00020c00, 0xf0310c00 },
{ "", "Norwegian", 0x00000414, 0x04140414 },
{ "", "Norwegian with Sami", 0x0000043b, 0x043b043b },
{ "", "Odia", 0x00000448, 0x04480448 },
{ "", "Ol Chiki", 0x000d0c00, 0xf0b60c00 },
{ "", "Old Italic", 0x000f0c00, 0xf0b80c00 },
{ "", "Osmanya", 0x000e0c00, 0xf0b70c00 },
{ "", "Pashto (Afghanistan)", 0x00000463, 0x04630463 },
{ "", "Persian", 0x00000429, 0x04290429 },
{ "", "Persian (Standard)", 0x00050429, 0xf03a0429 },
{ "", "Phags-pa", 0x000a0c00, 0xf0410c00 },
{ "", "Polish (214)", 0x00010415, 0xf0070415 },
{ "", "Polish (Programmers)", 0x00000415, 0x04150415 },
{ "", "Portuguese", 0x00000816, 0x08160816 },
{ "", "Portuguese (Brazilian ABNT)", 0x00000416, 0x04160416 },
{ "", "Portuguese (Brazilian ABNT2)", 0x00010416, 0xf0100416 },
{ "", "Punjabi", 0x00000446, 0x04460446 },
{ "", "Romanian (Legacy)", 0x00000418, 0x04180418 },
{ "", "Romanian (Programmers)", 0x00020418, 0xf0a60418 },
{ "", "Romanian (Standard)", 0x00010418, 0xf0a50418 },
{ "ru-RU", "Russian", 0x00000419, 0x04190419 },
{ "", "Russian - Mnemonic", 0x00020419, 0xf0330419 },
{ "", "Russian (Typewriter)", 0x00010419, 0xf0080419 },
{ "ru-IBTL", "Russian (Ilya Birman's typographic layout)", 0xa0000419, 0xf0c00419 },
{ "", "Sakha", 0x00000485, 0x04850485 },
{ "", "Sami Extended Finland-Sweden", 0x0002083b, 0xf02e083b },
{ "", "Sami Extended Norway", 0x0001043b, 0xf02c043b },
{ "", "Scottish Gaelic", 0x00011809, 0x18091809 },
{ "", "Serbian (Cyrillic)", 0x00000c1a, 0x0c1a0c1a },
{ "", "Serbian (Latin)", 0x0000081a, 0x081a081a },
{ "", "Sesotho sa Leboa", 0x0000046c, 0x046c046c },
{ "", "Setswana", 0x00000432, 0x04320432 },
{ "", "Sinhala", 0x0000045b, 0x045b045b },
{ "", "Sinhala - wij 9", 0x0001045b, 0xf0a0045b },
{ "", "Slovak", 0x0000041b, 0x041b041b },
{ "", "Slovak (QWERTY)", 0x0001041b, 0xf013041b },
{ "", "Slovenian", 0x00000424, 0x04240424 },
{ "", "Sora", 0x00100c00, 0xf0b90c00 },
{ "", "Sorbian Extended", 0x0001042e, 0xf09f042e },
{ "", "Sorbian Standard", 0x0002042e, 0xf0ae042e },
{ "", "Sorbian Standard (Legacy)", 0x0000042e, 0x042e042e },
{ "", "Spanish", 0x0000040a, 0x040a040a },
{ "", "Spanish Variation", 0x0001040a, 0xf086040a },
{ "", "Swedish", 0x0000041d, 0x041d041d },
{ "", "Swedish with Sami", 0x0000083b, 0x083b083b },
{ "", "Swiss French", 0x0000100c, 0x100c100c },
{ "", "Swiss German", 0x00000807, 0x08070807 },
{ "", "Syriac", 0x0000045a, 0x045a045a },
{ "", "Syriac Phonetic", 0x0001045a, 0xf00e045a },
{ "", "Tai Le", 0x00030c00, 0xf0340c00 },
{ "", "Tajik", 0x00000428, 0x04280428 },
{ "", "Tamil", 0x00000449, 0x04490449 },
{ "", "Tatar", 0x00010444, 0xf0bc0444 },
{ "", "Tatar (Legacy)", 0x00000444, 0x04440444 },
{ "", "Telugu", 0x0000044a, 0x044a044a },
{ "", "Thai Kedmanee", 0x0000041e, 0x041e041e },
{ "", "Thai Kedmanee (non-ShiftLock)", 0x0002041e, 0xf022041e },
{ "", "Thai Pattachote", 0x0001041e, 0xf021041e },
{ "", "Thai Pattachote (non-ShiftLock)", 0x0003041e, 0xf023041e },
{ "", "Tibetan (PRC - Standard)", 0x00010451, 0x04510451 },
{ "", "Tibetan (PRC - Legacy)", 0x00000451, 0x04510451 },
{ "", "Tifinagh (Basic)", 0x00050c00, 0x0c000c00 },
{ "", "Tifinagh (Full)", 0x00060c00, 0xf0360c00 },
{ "", "Turkish F", 0x0001041f, 0xf014041f },
{ "", "Turkish Q", 0x0000041f, 0x041f041f },
{ "", "Turkmen", 0x00000442, 0x04420442 },
{ "", "Uyghur", 0x00010408, 0xf0ad0408 },
{ "", "Uyghur (Legacy)", 0x00000480, 0x04800480 },
{ "uk-UA", "Ukrainian", 0x00000422, 0x04220422 },
{ "uke-UA", "Ukrainian (Enhanced)", 0x00020422, 0xf0a80422 },
{ "", "United Kingdom", 0x00000809, 0x08090809 },
{ "", "United Kingdom Extended", 0x00000452, 0x04520452 },
{ "", "United States - Dvorak", 0x00010409, 0xf0020409 },
{ "", "United States - International", 0x00020409, 0xf0010409 },
{ "", "United States-Dvorak for left hand", 0x00030409, 0xf01a0409 },
{ "", "United States-Dvorak for right hand", 0x00040409, 0xf01b0409 },
{ "en-US", "United States - English", 0x00000409, 0x04090409 },
{ "", "Urdu", 0x00000420, 0x04200420 },
{ "", "Uyghur", 0x00010480, 0xf0ad0480 },
{ "", "Uzbek Cyrillic", 0x00000843, 0x08430843 },
{ "", "Vietnamese", 0x0000042a, 0x042a042a },
{ "", "Wolof", 0x00000488, 0x04880488 },
{ "", "Yakut", 0x00000485, 0x04850485 },
{ "", "Yoruba", 0x0000046a, 0x046a046a },
};
const char* layout_from_table(uint32_t id, bool full_name = false) {
uint32_t low = LOW(id);
//find full
for (const auto& layout : layouts) {
if (id == layout.id_hkl) {
return layout.get_name(full_name);
}
}
//fallback, find general
for (const auto& layout : layouts) {
if (HIGH(layout.id_lkid) == 0 && LOW(layout.id_lkid) == low) {
return layout.get_name(full_name);
}
}
return nullptr;
}
char* layout_from_winapi(uint32_t id) {
char locbuf[32];
char countrybuf[32];
static char retbuf[64];
GetLocaleInfoA(MAKELCID(id, SORT_DEFAULT), LOCALE_SISO639LANGNAME, locbuf, 32);
GetLocaleInfoA(MAKELCID(id, SORT_DEFAULT), LOCALE_SISO3166CTRYNAME, countrybuf, 32);
sprintf_s(retbuf, 64, "%s-%s", locbuf, countrybuf);
return retbuf;
}
uint32_t lkid_from_table(const char* layout_name) {
for (const auto& layout : layouts) {
if (strncmp(layout_name, layout.short_name, Layout::SHORT_NAME_LEN) == 0
|| strncmp(layout_name, layout.full_name, Layout::FULL_NAME_LEN) == 0) {
return layout.id_lkid;
}
}
return 0;
}
int main(int argc, char** argv)
{
if (argc < 2) {
std::cout
<< "langswitch.exe [-l] layout\n"
<< "options:\n"
<< "layout layout to activate e.g. en-US or \"United States - English\"\n"
<< "-l list available layouts, format: name_winapi short_name_table full_name_table\n";
return 1;
}
HKL list[256]{ 0 };
GetKeyboardLayoutList(256, list);
HKL* lst = list;
while (*lst != 0) {
const char* lay_api = layout_from_winapi((uint32_t)*lst);
const char* lay_tab_short = layout_from_table((uint32_t)*lst);
const char* lay_tab_full = layout_from_table((uint32_t)*lst, true);
if (!lay_tab_full) {
std::cout << lay_api << " skipped, not found in table\n";
lst++;
continue;
}
if (strncmp(argv[1], "-l", 3) == 0) {
std::cout << lay_api << " " << lay_tab_short << " " << lay_tab_full << std::endl;
}
else if (strncmp(argv[1], lay_tab_short, Layout::FULL_NAME_LEN) == 0
|| strncmp(argv[1], lay_tab_full, Layout::FULL_NAME_LEN) == 0) {
std::ostringstream lkid_oss;
lkid_oss << std::setw(8) << std::setfill('0') << std::hex << lkid_from_table(lay_tab_full);
HKL hkl = LoadKeyboardLayoutA(lkid_oss.str().c_str(), KLF_ACTIVATE);
if (!hkl) {
return 2;
}
HWND wind = GetForegroundWindow();
PostMessage(wind, WM_INPUTLANGCHANGEREQUEST, 0, (LPARAM)hkl);
return 0;
}
lst++;
}
return 0;
}