internal static string DevicePath(IntPtr devptr)
{
unsafe {
WrappedDevice *dev = (WrappedDevice *)devptr.ToPointer();
return(Marshal.PtrToStringAnsi(dev->path));
}
}
internal void close_device()
{
unsafe {
WrappedDevice *dev = (WrappedDevice *)self.ToPointer();
dev->buttons = IntPtr.Zero;
dev->axes = IntPtr.Zero;
buttons_handle.Free();
axes_handle.Free();
}
}
internal Device(IntPtr devptr)
{
self = devptr;
unsafe {
WrappedDevice *dev = (WrappedDevice *)devptr.ToPointer();
path = Marshal.PtrToStringAnsi(dev->path);
name = Marshal.PtrToStringAnsi(dev->name);
num_buttons = dev->num_buttons;
buttons = new Button[dev->num_buttons];
num_axes = dev->num_axes;
axes = new Axis[dev->num_axes];
int bsize = Marshal.SizeOf(typeof(Button));
if (dev->num_buttons > 0)
{
for (int i = 0; i < dev->num_buttons; i++)
{
IntPtr bptr = new IntPtr(dev->buttons.ToInt64() + i * bsize);
buttons[i] = (Button)Marshal.PtrToStructure(bptr, typeof(Button));
}
buttons_handle = GCHandle.Alloc(buttons, GCHandleType.Pinned);
dev->buttons = buttons_handle.AddrOfPinnedObject();
}
int asize = Marshal.SizeOf(typeof(Axis));
if (dev->num_axes > 0)
{
for (int i = 0; i < dev->num_axes; i++)
{
IntPtr aptr = new IntPtr(dev->axes.ToInt64() + i * asize);
axes[i] = (Axis)Marshal.PtrToStructure(aptr, typeof(Axis));
}
axes_handle = GCHandle.Alloc(axes, GCHandleType.Pinned);
dev->axes = axes_handle.AddrOfPinnedObject();
}
}
}
