/// <summary>
///
/// </summary>
/// <param name="port"></param>
/// <param name="mouse"></param>
static void MouseLoop(UsbController port, UsbStream mouse)
{
// Mouse report storage.
byte[] report = new byte[5];
// Offsets into mouse report storage.
const byte BUTTONS = 0;
const byte X_MOVEMENT = 1;
const byte Y_MOVEMENT = 2;
// Size of mouse movement for each report (every 10 mS).
const byte mouseStep = 3;
bool fAddMouse = true;
// While the Done button is not pressed...
while (buttons.Done.Read())
{
// Perform this operation once every 10 milliseconds (actually a
// bit more than 10 milliseconds). We've asked the host to
// query for mouse info at least every 10 milliseconds, but it
// actually queries every 8 milliseconds - it's OK not to
// respond to every query.
Thread.Sleep(10);
report[X_MOVEMENT] = 0; // Zero X movement
report[Y_MOVEMENT] = 0; // Zero Y movement
// Add X,Y movement to the mouse report.
if (!buttons.Left.Read())
report[X_MOVEMENT] -= mouseStep;
if (!buttons.Right.Read())
report[X_MOVEMENT] += mouseStep;
if (!buttons.Up.Read())
report[Y_MOVEMENT] -= mouseStep;
if (!buttons.Down.Read())
report[Y_MOVEMENT] += mouseStep;
if (!buttons.Toggle.Read())
{
if (mouse != null)
{
mouse.Dispose();
mouse = null;
}
fAddMouse = !fAddMouse;
ConfigureUsbPort(port, fAddMouse);
if (fAddMouse)
{
mouse = port.CreateUsbStream(3, UsbStream.NullEndpoint);
}
}
// Add the button state to the mouse report.
report[BUTTONS] = (byte)((!buttons.LeftMouseButton.Read() ?
1 : 0) | (!buttons.RightMouseButton.Read() ? 2 : 0));
if (mouse != null)
{
// Send the mouse report to the host.
mouse.Write(report, 0, 3);
}
}
// Wait for the Done button to be released.
while (!buttons.Done.Read()) ;
}
