/* * Copyright (C) 2015 Tim Mayberry * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef PBD_WINDOWS_TIMER_UTILS_H #define PBD_WINDOWS_TIMER_UTILS_H #include #include "pbd/libpbd_visibility.h" namespace PBD { namespace MMTIMERS { /** * Get the minimum Multimedia Timer resolution as supported by the system * @return true if getting min timer resolution was not successful */ bool LIBPBD_API get_min_resolution (uint32_t& timer_resolution_ms); /** * Set the minimum Multimedia Timer resolution as supported by the system * @return true if setting min timer resolution was successful */ bool LIBPBD_API set_min_resolution (); /** * Set current Multimedia Timer resolution. If the timer resolution has already * been set then reset_resolution() must be called before set_resolution will * succeed. * @return true if setting the timer value was successful, false if setting the * timer resolution failed or the resolution has already been set. */ bool LIBPBD_API set_resolution(uint32_t timer_resolution_ms); /** * Reset Multimedia Timer resolution. In my testing, if the timer resolution is * set below the default, then resetting the resolution will not reset the * timer resolution back to 15ms. At least it does not reset immediately * even after calling Sleep. * @return true if setting the timer value was successful */ bool LIBPBD_API reset_resolution(); } // namespace MMTIMERS } // namespace PBD #endif // PBD_WINDOWS_TIMER_UTILS_H