internal void RegisterRawInputDevices()
{
NativeMethods.RAWINPUTDEVICE[] devices = new NativeMethods.RAWINPUTDEVICE[3];
// for TouchScreen
devices[0].usUsagePage = 0x0D; //Digitizer
devices[0].usUsage = 0x04; //Touch Screen
devices[0].hwndTarget = ownerWmInputMessageReceivingWindowHandle;
devices[0].dwFlags = (int)NativeMethods.RIDEV.INPUTSINK;
// for Mouse
devices[1].usUsagePage = 0x01; //Generic Desktop
devices[1].usUsage = 0x02; //Mouse
devices[1].hwndTarget = ownerWmInputMessageReceivingWindowHandle;
devices[1].dwFlags = (int)NativeMethods.RIDEV.INPUTSINK;
// for VSC TouchScreen (VSC=Vendor SpeCific)
devices[2].usUsagePage = 0xFF00; //Vendor
devices[2].usUsage = 0x01; //Vendor (Touch Screen)
devices[2].hwndTarget = ownerWmInputMessageReceivingWindowHandle;
devices[2].dwFlags = (int)NativeMethods.RIDEV.INPUTSINK;
// devices.Length: The number of "WM_INPUT enabled" devices
int size = Marshal.SizeOf(typeof(NativeMethods.RAWINPUTDEVICE));
NativeMethods.RegisterRawInputDevices(devices, (uint)devices.Length, (uint)size);
}
private void RegisterDevices()
{
NativeMethods.RAWINPUTDEVICE[] rid = new NativeMethods.RAWINPUTDEVICE[1];
rid[0].usUsagePage = NativeMethods.TouchScreenUsagePage;
rid[0].usUsage = 0x04;
rid[0].dwFlags = NativeMethods.RIDEV_INPUTSINK | NativeMethods.RIDEV_DEVNOTIFY;
rid[0].hwndTarget = Handle;
if (!NativeMethods.RegisterRawInputDevices(rid, (uint)rid.Length, (uint)Marshal.SizeOf(rid[0])))
{
throw new ApplicationException("Failed to register raw input device(s).");
}
}
/// <summary>
/// Registers ourselves to listen to raw input from keyboard-like devices.
/// </summary>
/// <param name="hwnd">the handle of the form that will receive the raw
/// input messages</param>
/// <exception cref="InvalidOperationException">if the call to register with the
/// raw input API fails for some reason</exception>
private static void HookRawInput(IntPtr hwnd)
{
NativeMethods.RAWINPUTDEVICE[] rid;
rid = new NativeMethods.RAWINPUTDEVICE[1];
rid[0].usUsagePage = 0x01; // USB HID Generid Desktop Page
rid[0].usUsage = 0x06; // Keyboard Usage ID
rid[0].dwFlags = NativeMethods.RawInputDeviceFlags.RIDEV_INPUTSINK;
rid[0].hwndTarget = hwnd;
if (!NativeMethods.RegisterRawInputDevices(rid, (uint)rid.Length, (uint)Marshal.SizeOf(rid[0])))
{
InvalidOperationException e;
e = new InvalidOperationException(
"The barcode scanner listener could not register for raw input devices.",
new Win32Exception());
throw e;
}
}
private void RegisterDevices()
{
NativeMethods.RAWINPUTDEVICE[] rid = new NativeMethods.RAWINPUTDEVICE[1];
rid[0].usUsagePage = NativeMethods.TouchScreenUsagePage;
rid[0].usUsage = 0x04;
rid[0].dwFlags = NativeMethods.RIDEV_INPUTSINK;
rid[0].hwndTarget = Handle;
if (!NativeMethods.RegisterRawInputDevices(rid, (uint)rid.Length, (uint)Marshal.SizeOf(rid[0])))
{
throw new ApplicationException("Failed to register raw input device(s).");
}
}
