private void PollThread()
{
ManagedWrapper.SetFilter(_deviceContext, IsMonitoredDevice, ManagedWrapper.Filter.All);
int deviceId1;
int deviceId2;
var stroke1 = new ManagedWrapper.Stroke();
var stroke2 = new ManagedWrapper.Stroke();
while (true)
{
var strokes = new List <ManagedWrapper.Stroke>();
if (ManagedWrapper.Receive(_deviceContext, deviceId1 = ManagedWrapper.WaitWithTimeout(_deviceContext, 10), ref stroke1, 1) > 0)
{
strokes.Add(stroke1);
if (deviceId1 < 11)
{
if (ManagedWrapper.Receive(_deviceContext, deviceId2 = ManagedWrapper.WaitWithTimeout(_deviceContext, 0), ref stroke2, 1) > 0)
{
strokes.Add(stroke2);
}
}
if (!_block)
{
for (int i = 0; i < strokes.Count; i++)
{
var stroke = strokes[i];
ManagedWrapper.Send(_deviceContext, _deviceId, ref stroke, 1);
}
}
// Use array for callback, as the callback may be AHK code, and dealing with arrays in AHK is way simpler that Lists
var keyEvents = new KeyEvent[strokes.Count];
for (int i = 0; i < strokes.Count; i++)
{
var s = strokes[i];
keyEvents[i] = new KeyEvent {
Code = s.key.code, State = s.key.state
};
}
_callback(keyEvents);
}
}
}
private static void PollThread(object obj)
{
var token = (CancellationToken)obj;
//Debug.WriteLine($"AHK| Poll Thread Started");
_pollThreadRunning = true;
int stroke1DeviceId;
int stroke2DeviceId;
while (!token.IsCancellationRequested)
{
var stroke = new ManagedWrapper.Stroke();
// While no input happens, this loop will exit every 10ms to allow us to check if cancellation has been requested
// WaitWithTimeout is used with a timeout of 10ms instead of Wait, so that when we eg use SetState to turn the thread off...
// ... any input which was filtered and is waiting to be processed can be processed (eg lots of mouse moves buffered)
if (ManagedWrapper.Receive(DeviceContext, stroke1DeviceId = ManagedWrapper.WaitWithTimeout(DeviceContext, 10), ref stroke, 1) > 0)
{
var strokes = new List <ManagedWrapper.Stroke>();
strokes.Add(stroke);
if (stroke1DeviceId < 11)
{
//Debug.WriteLine($"Stroke 1: {RenderStroke(stroke)}");
// If this is a keyboard stroke, then keep performing more Receives immediately with a timeout of 0...
// ... this is to check whether an extended stroke is waiting.
// Unfortunately, at this point, it's entirely possible that two single-stroke keys end up in strokes...
// ... or even 3 strokes or more (eg one single-stroke key followed by a two-stroke key)
//while ((stroke2DeviceId = ManagedWrapper.WaitWithTimeout(DeviceContext, 0)) == stroke1DeviceId)
while ((stroke2DeviceId = ManagedWrapper.WaitWithTimeout(DeviceContext, 0)) != 0)
{
ManagedWrapper.Receive(DeviceContext, stroke2DeviceId, ref stroke, 1);
strokes.Add(stroke);
//Debug.WriteLine($"Stroke {strokes.Count}: {RenderStroke(stroke)}");
}
// Loop through the list checking the first 2 indexes for valid "two-code" key combinations.
// If no combo is found, send index 0 on its way, remove it off the top of the list, repeat
while (strokes.Count > 0)
{
if (strokes.Count >= 2 && ScanCodeHelper.IsDoubleScanCode(new List <ManagedWrapper.Stroke> {
strokes[0], strokes[1]
}))
{
DeviceHandlers[stroke1DeviceId].ProcessStroke(new List <ManagedWrapper.Stroke> {
strokes[0], strokes[1]
});
strokes.RemoveRange(0, 2);
}
else
{
DeviceHandlers[stroke1DeviceId].ProcessStroke(new List <ManagedWrapper.Stroke> {
strokes[0]
});
strokes.RemoveAt(0);
}
}
}
else
{
DeviceHandlers[stroke1DeviceId].ProcessStroke(strokes);
}
}
}
_pollThreadRunning = false;
//Debug.WriteLine($"AHK| Poll Thread Ended");
}