added support to get the return value(s) of lua callbacks #315
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sample code for required cleanup (see bottom lines) lua_State *state = luaS_callback_state(callback_variable); int top = lua_gettop(state); luaS_callback_call_return(callback_variable, 0, 2); int nResults = lua_gettop(state) - top; lua_pop(state, 1); // first remove the Copy of the callback // query+use variables here // cleanup is required: lua_pop(state, nResults); // pop all return values from the stack lua_pushvalue(state, 1); // re-add the Copy of the callback
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@jolivepetrus this is now again ready to be merged |
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special care must be taken on cleanup (see bottom lines)