Function Sys_SetVsyncSwapInterval

engine/script/src/script_sys.cpp:1341–1355

set vsync swap interval * Set the vsync swap interval. The interval with which to swap the front and back buffers * in sync with vertical blanks (v-blank), the hardware event where the screen image is updated * with data from the front buffer. A value of 1 swaps the buffers at every v-blank, a value of * 2 swaps the buffers every other v-blank and so on. A value of 0 disables waiti

    * ```
    */
    static int Sys_SetVsyncSwapInterval(lua_State* L)
    {
        DM_LUA_STACK_CHECK(L, 0);

        dmSystemDDF::SetVsync msg;
        msg.m_SwapInterval = luaL_checkinteger(L, 1);

        dmMessage::URL url;
        GetSystemURL(&url);

        dmMessage::Result result = dmMessage::Post(0, &url, dmSystemDDF::SetVsync::m_DDFDescriptor->m_NameHash, 0, (uintptr_t) dmSystemDDF::SetVsync::m_DDFDescriptor, &msg, sizeof(msg), 0);
        assert(result == dmMessage::RESULT_OK);

        return 0;
    }

    /*# set update frequency
    * Set game update-frequency (frame cap). This option is equivalent to `display.update_frequency` in