public RawKeyboard(IntPtr hwnd, bool captureOnlyInForeground)
{
var rid = new RawInputDevice[1];
rid[0].UsagePage = HidUsagePage.GENERIC;
rid[0].Usage = HidUsage.Keyboard;
rid[0].Flags = (captureOnlyInForeground ? RawInputDeviceFlags.NONE : RawInputDeviceFlags.INPUTSINK) | RawInputDeviceFlags.DEVNOTIFY;
rid[0].Target = hwnd;
if (!Win32.RegisterRawInputDevices(rid, (uint)rid.Length, (uint)Marshal.SizeOf(rid[0])))
{
throw new ApplicationException("Failed to register raw input device(s).");
}
}
public RawKeyboard(IntPtr hwnd, bool captureOnlyInForeground)
{
var rid = new RawInputDevice[1];
rid[0].UsagePage = HidUsagePage.GENERIC;
rid[0].Usage = HidUsage.Keyboard;
rid[0].Flags = (captureOnlyInForeground ? RawInputDeviceFlags.NONE : RawInputDeviceFlags.INPUTSINK) | RawInputDeviceFlags.DEVNOTIFY;
rid[0].Target = hwnd;
if(!Win32.RegisterRawInputDevices(rid, (uint)rid.Length, (uint)Marshal.SizeOf(rid[0])))
{
throw new ApplicationException("Failed to register raw input device(s).");
}
}
public RawInputDeviceEnumerator()
{
uint deviceCount = 0;
var deviceSize =
(uint)Marshal.SizeOf(typeof(Win32.RawInputDeviceList));
// first call retrieves the number of raw input devices
var result = Win32.GetRawInputDeviceList(
IntPtr.Zero,
ref deviceCount,
deviceSize);
_devices = new RawInputDevice[deviceCount];
if ((int)result == -1 || deviceCount == 0)
{
// call failed, or no devices found
return;
}
// allocates memory for an array of Win32.RawInputDeviceList
IntPtr ptrDeviceList =
Marshal.AllocHGlobal((int)(deviceSize * deviceCount));
result = Win32.GetRawInputDeviceList(
ptrDeviceList,
ref deviceCount,
deviceSize);
if ((int)result != -1)
{
// enumerates array of Win32.RawInputDeviceList,
// and populates array of managed RawInputDevice objects
for (var index = 0; index < deviceCount; index++)
{
var rawInputDeviceList =
(Win32.RawInputDeviceList)Marshal.PtrToStructure(
new IntPtr((ptrDeviceList.ToInt32() +
(deviceSize * index))),
typeof(Win32.RawInputDeviceList));
_devices[index] =
new RawInputDevice(rawInputDeviceList);
}
}
Marshal.FreeHGlobal(ptrDeviceList);
}
public RawInputDriver(IntPtr hwnd)
{
RawInputDevice[] array = new RawInputDevice[2];
array[0].UsagePage = HidUsagePage.GENERIC;
array[0].Usage = HidUsage.Keyboard;
array[0].Flags = RawInputDeviceFlags.INPUTSINK;
array[0].Target = hwnd;
array[1].UsagePage = HidUsagePage.GENERIC;
array[1].Usage = HidUsage.Mouse;
array[1].Flags = RawInputDeviceFlags.INPUTSINK;
array[1].Target = hwnd;
if (!Win32.RegisterRawInputDevices(array, (uint)array.Length, (uint)Marshal.SizeOf(array[0])))
{
DebugCenter.GetInstance().appendToFile("Failed to register raw input device(s).");
return;
}
this._parentWnd = hwnd;
Win32.GetWindowThreadProcessId(this._parentWnd, out this._parentProcessID);
}
internal static extern bool RegisterRawInputDevices(RawInputDevice[] pRawInputDevice, uint numberDevices, uint size);
