WGL_OML_sync_control https://www.khronos.org/registry/OpenGL/extensions/OML/WGL_OML_sync_control.txt WGL_OML_sync_control BOOL wglGetMscRateOML (HDC hdc, INT32* numerator, INT32* denominator) BOOL wglGetSyncValuesOML (HDC hdc, INT64* ust, INT64* msc, INT64* sbc) INT64 wglSwapBuffersMscOML (HDC hdc, INT64 target_msc, INT64 divisor, INT64 remainder) INT64 wglSwapLayerBuffersMscOML (HDC hdc, INT fuPlanes, INT64 target_msc, INT64 divisor, INT64 remainder) BOOL wglWaitForMscOML (HDC hdc, INT64 target_msc, INT64 divisor, INT64 remainder, INT64* ust, INT64* msc, INT64* sbc) BOOL wglWaitForSbcOML (HDC hdc, INT64 target_sbc, INT64* ust, INT64* msc, INT64* sbc)