//for converting a struct to byte array
public static byte[] getBytesSFJ(SetFeatureJoy sfj, int size)
{
var arr = new byte[size];
var ptr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(sfj, ptr, false);
Marshal.Copy(ptr, arr, 0, size);
Marshal.FreeHGlobal(ptr);
return(arr);
}
//here we send data to the joystick
void Send_Data_To_Joystick()
{
var JoyData = new SetFeatureJoy();
JoyData.ReportID = 1;
JoyData.CommandCode = 2;
JoyData.X = (ushort)slX.Value;
JoyData.Y = (ushort)slY.Value;
JoyData.Z = (ushort)slZ.Value;
JoyData.rX = (ushort)slrX.Value;
JoyData.rY = (ushort)slrY.Value;
JoyData.rZ = (ushort)slrZ.Value;
JoyData.slider = (ushort)slSlider.Value;
JoyData.wheel = (ushort)slWheel.Value;
JoyData.dial = (ushort)slDial.Value;
JoyData.hat = (byte)slHat.Value;
//non-hat buttons are represented as a bit array of 16 bytes, 1 bit per button.
//we could have used a byte array here, but for simplicity we instead just declared 16 byte variables.
//each button is represented by 1 bit. The bit is 1 if pressed, 0 if not pressed.
//in this example, we'll only show the first 8 buttons and also button 128.
JoyData.btn0 = 0;
if (cb0.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 0));
}
if (cb1.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 1));
}
if (cb2.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 2));
}
if (cb3.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 3));
}
if (cb4.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 4));
}
if (cb5.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 5));
}
if (cb6.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 6));
}
if (cb7.IsChecked == true)
{
JoyData.btn0 = (byte)(JoyData.btn0 | (1 << 7));
}
JoyData.btn1 = 0;
if (cb8.IsChecked == true)
{
JoyData.btn1 = (byte)(JoyData.btn1 | (1 << 0));
}
JoyData.btn15 = 0;
if (cb128.IsChecked == true)
{
JoyData.btn15 = (byte)(JoyData.btn15 | (1 << 0));
}
//convert struct to buffer
var buf = getBytesSFJ(JoyData, Marshal.SizeOf(JoyData));
//send filled buffer to driver
HID.SendData(buf, (uint)Marshal.SizeOf(JoyData));
}
