Created
November 23, 2025 19:20
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Lua DLL example for non-blocking read on Windows
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| #include <windows.h> | |
| #include <stdio.h> | |
| #include <conio.h> | |
| #include <lua.h> | |
| #include <lualib.h> | |
| #include <lauxlib.h> | |
| /* in Lua: | |
| require "tty" | |
| ... | |
| local c = tty.read_chr() | |
| if c ~= 0 then | |
| ... | |
| */ | |
| //__declspec(dllexport) | |
| // gcc -shared -o tty.dll -lluajit tty.c -I..\luajit-dist\include -L..\luajit-dist | |
| static int l_read_chr(lua_State* L) { | |
| if (kbhit()){ | |
| lua_pushnumber(L, getch()); | |
| } else { | |
| lua_pushnumber(L, 0); | |
| } | |
| return 1; | |
| } | |
| static const struct luaL_Reg mylib[] = { | |
| {"read_chr", l_read_chr}, | |
| {NULL, NULL} | |
| }; | |
| int luaopen_tty(lua_State* L){ | |
| luaL_register(L, "tty", mylib); | |
| return 1; | |
| } | |
| int main() { | |
| return 0; | |
| } |
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