// Initialize this Joystick controller
//--------------------------------------------------------------------------
// Construction
//--------------------------------------------------------------------------
public JoystickController(DirectInput dinput, Guid guid)
{
this.directInputDevice = dinput.CreateDevice(guid);
foreach (DIDEVICEOBJECTINSTANCE ddoi in this.directInputDevice.EnumObjects(DIDFT.AXIS))
{
if ((ddoi.dwType & (int)DIDFT.AXIS) != 0) // can omit?
{
this.directInputDevice.SetRange(ddoi, -128, 127);
}
}
// We stick formatDesc in a member variable because we're not sure whether
// we're allowed to free it right after the SetDataFormat call or whether
// we're responsible for keeping it alive so long as we use the IDirectInputDevice8
// instance.
this.formatDesc = State.GetDataRetrievalDescriptor();
this.directInputDevice.SetDataFormat(ref this.formatDesc);
}
public void SetDataFormat(ref DIDATAFORMAT pdf)
{
this.pInputDevice.SetDataFormat(pdf);
}
public static unsafe DIDATAFORMAT GetDataRetrievalDescriptor()
{
DIDATAFORMAT format = new DIDATAFORMAT();
int cFields = typeof(State).GetFields().Length;
format.Init(cFields);
format.dwFlags = (int)DIDF.ABSAXIS;
format.dwDataSize = Marshal.SizeOf(typeof(State));
//
format.rgodf[0].Set(ref Guids.XAxis, Marshal.OffsetOf(typeof(State), "x"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.AXIS, DIDOI.ASPECTPOSITION);
format.rgodf[1].Set(ref Guids.YAxis, Marshal.OffsetOf(typeof(State), "y"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.AXIS, DIDOI.ASPECTPOSITION);
format.rgodf[2].Set(ref Guids.ZAxis, Marshal.OffsetOf(typeof(State), "z"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.AXIS, DIDOI.ASPECTPOSITION);
format.rgodf[3].Set(ref Guids.RZAxis, Marshal.OffsetOf(typeof(State), "rotationZ"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.AXIS, DIDOI.ASPECTPOSITION);
format.rgodf[4].Set(ref Guids.POV, Marshal.OffsetOf(typeof(State), "pov"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.POV, DIDOI.NONE);
format.rgodf[5].Set(null, Marshal.OffsetOf(typeof(State), "button0"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[6].Set(null, Marshal.OffsetOf(typeof(State), "button1"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[7].Set(null, Marshal.OffsetOf(typeof(State), "button2"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[8].Set(null, Marshal.OffsetOf(typeof(State), "button3"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[9].Set(null, Marshal.OffsetOf(typeof(State), "button4"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[10].Set(null, Marshal.OffsetOf(typeof(State), "button5"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[11].Set(null, Marshal.OffsetOf(typeof(State), "button6"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[12].Set(null, Marshal.OffsetOf(typeof(State), "button7"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[13].Set(null, Marshal.OffsetOf(typeof(State), "button8"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[14].Set(null, Marshal.OffsetOf(typeof(State), "button9"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[15].Set(null, Marshal.OffsetOf(typeof(State), "button10"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
format.rgodf[16].Set(null, Marshal.OffsetOf(typeof(State), "button11"), DIDFT.MYSTERY|DIDFT.ANYINSTANCE|DIDFT.BUTTON, DIDOI.NONE);
//
return format;
}
