/// <summary>
/// Turns on / off filtering of devices
/// Any filtered device will be blocked if the provider crashes
/// Also controls which devices are filtered when filtering is on
/// </summary>
/// <param name="state">Set to true to turn filtering on</param>
private void SetFilterState(bool state)
{
if (state && !_filterState)
{
HelperFunctions.Log("Enabling Interception filter");
ManagedWrapper.SetFilter(_deviceContext, IsMonitoredKeyboard, ManagedWrapper.Filter.All);
ManagedWrapper.SetFilter(_deviceContext, IsMonitoredMouse, ManagedWrapper.Filter.All);
_filterState = true;
}
else if (!state && _filterState)
{
HelperFunctions.Log("Disabling Interception filter");
ManagedWrapper.SetFilter(_deviceContext, IsMonitoredKeyboard, ManagedWrapper.Filter.None);
ManagedWrapper.SetFilter(_deviceContext, IsMonitoredMouse, ManagedWrapper.Filter.None);
_filterState = false;
}
}
public void EchoInput()
{
Console.WriteLine("Echo mode activated. Press Ctrl-C to exit.");
Console.WriteLine("code\tstate\tname");
ManagedWrapper.SetFilter(context, ManagedWrapper.IsKeyboard, ManagedWrapper.Filter.All);
try
{
while (true)
{
int device;
var stroke = new ManagedWrapper.Stroke();
if (ManagedWrapper.Receive(context, device = ManagedWrapper.WaitWithTimeout(context, 5), ref stroke, 1) > 0)
{
if (ManagedWrapper.IsKeyboard(device) > 0)
{
int scancode = stroke.key.code;
if ((stroke.key.state & 2) != 0)
{
scancode += 256;
}
Console.WriteLine($"{stroke.key.code}\t"
+ $"{(ManagedWrapper.KeyState) stroke.key.state}\t"
+ $"{KeyNameHelper.GetNameFromScanCode(scancode)}");
ManagedWrapper.Send(context, device, ref stroke, 1);
}
}
}
}
catch (Exception e)
{
Console.Error.WriteLine(e);
}
}