Function RunString

imgui_lua_bindings.cpp:43–79

Example lua run string function returns NULL on success and error string on error

// Example lua run string function
// returns NULL on success and error string on error
const char * RunString(const char* szLua) {
  if (!lState) {
    fprintf(stderr, "You didn't assign the global lState, either assign that or refactor LoadImguiBindings and RunString\n");
  }

  int iStatus = luaL_loadstring(lState, szLua);
  if(iStatus) {
    return lua_tostring(lState, -1);
    //fprintf(stderr, "Lua syntax error: %s\n", lua_tostring(lState, -1));
    //return;
  }
#ifdef ENABLE_IM_LUA_END_STACK
  endStack.clear();
#endif
  iStatus = lua_pcall( lState, 0, 0, 0 );

#ifdef ENABLE_IM_LUA_END_STACK
  bool wasEmpty = endStack.empty();
  while(!endStack.empty()) {
    ImEndStack(endStack.back());
    endStack.pop_back();
  }

#endif
  if( iStatus )
  {
      return lua_tostring(lState, -1);
      //fprintf(stderr, "Error: %s\n", lua_tostring( lState, -1 ));
      //return;
  }
#ifdef ENABLE_IM_LUA_END_STACK
  else if (!wasEmpty) {
    return "Script didn't clean up imgui stack properly";
  }
#endif
  return NULL;
}


#define IMGUI_FUNCTION_DRAW_LIST(name) \