/// <summary>
/// Registers the application to receive WM_INPUT messages for mice.
/// </summary>
/// <param name="hwndTarget">The application's hwnd.</param>
public void RegisterForWM_INPUT(IntPtr hwndTarget)
{
RAWINPUTDEVICE rid = new RAWINPUTDEVICE();
rid.usUsagePage = 0x01;
rid.usUsage = 0x02; //mouse
rid.dwFlags = 0; // RIDEV_NOLEGACY; // adds HID mouse and also ignores legacy mouse messages
rid.hwndTarget = (uint)hwndTarget.ToInt32();
//supposed to be a pointer to an array, we're only registering one device though.
IntPtr pRawInputDeviceArray = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RAWINPUTDEVICE)));
Marshal.StructureToPtr(rid, pRawInputDeviceArray, true);
uint retval = RegisterRawInputDevices(pRawInputDeviceArray, 1, (uint)Marshal.SizeOf(typeof(RAWINPUTDEVICE)));
Marshal.FreeHGlobal(pRawInputDeviceArray);
}
/// <summary>
/// Registers the application to receive WM_INPUT messages for mice.
/// </summary>
/// <param name="hwndTarget">The application's hwnd.</param>
public void RegisterForWM_INPUT(IntPtr hwndTarget)
{
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms645565(v=vs.85).aspx
RAWINPUTDEVICE rid = new RAWINPUTDEVICE();
rid.usUsagePage = 0x01;
rid.usUsage = 0x02; // Mouse
rid.dwFlags = RIDEV_INPUTSINK;
rid.hwndTarget = hwndTarget;
// Supposed to be a pointer to an array, we're only registering one device though
IntPtr pRawInputDeviceArray = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RAWINPUTDEVICE)));
Marshal.StructureToPtr(rid, pRawInputDeviceArray, true);
uint retval = RegisterRawInputDevices(pRawInputDeviceArray, 1, (uint)Marshal.SizeOf(typeof(RAWINPUTDEVICE)));
Marshal.FreeHGlobal(pRawInputDeviceArray);
}