bool MemoryOutputStream::setPosition (std::int64_t newPosition)
{
if (newPosition <= (std::int64_t) size)
{
// ok to seek backwards
position = blimit ((size_t) 0, size, (size_t) newPosition);
return true;
}
// can't move beyond the end of the stream..
return false;
}
void start (int newPeriod)
{
if (newPeriod != periodMs)
{
stop();
periodMs = newPeriod;
TIMECAPS tc;
if (timeGetDevCaps (&tc, sizeof (tc)) == TIMERR_NOERROR)
{
const int actualPeriod = blimit ((int) tc.wPeriodMin, (int) tc.wPeriodMax, newPeriod);
timerID = timeSetEvent (actualPeriod, tc.wPeriodMin, callbackFunction, (DWORD_PTR) this,
TIME_PERIODIC | TIME_CALLBACK_FUNCTION | 0x100 /*TIME_KILL_SYNCHRONOUS*/);
}
}
}
