/// <summary>
/// Processes a <see cref="WM.INPUT">WM_INPUT</see> messages and raises the proper events.
/// </summary>
/// <param name="lParam">The handle to the raw input dataset.</param>
/// <param name="size">The size, in bytes, of the raw input dataset.</param>
public void ProcessInput(IntPtr lParam, uint size)
{
IntPtr buffer = Marshal.AllocHGlobal((int)size);
uint dwSize = size;
try
{
uint err = RawInput.GetRawInputData(lParam, RID.INPUT, buffer, ref dwSize, RAWINPUTHEADER.SIZE);
if (err == uint.MaxValue)
{
throw new Exception(string.Format("Error getting WM_INPUT data. (Error code: 0x{0:X8})", WinKernel.GetLastError()));
}
RAWINPUTHEADER inputHeader = (RAWINPUTHEADER)Marshal.PtrToStructure(buffer, typeof(RAWINPUTHEADER));
SpaceMouseEventHeader eventHeader = (SpaceMouseEventHeader)Marshal.PtrToStructure(buffer + (int)RAWINPUTHEADER.SIZE, typeof(SpaceMouseEventHeader));
int eventHeaderSize = SpaceMouseEventHeader.SIZE + (int)RAWINPUTHEADER.SIZE;
switch (eventHeader.eventType)
{
case SpaceMouseEventType.Translation:
if (eventHeader.dwSizeHid == 7) // check report size for safety
{
EventHandler <SpaceMouseTranslationEventArgs> tEvt = Translation;
if (tEvt != null) // no need to handle if nobody is listing
{
for (int i = 0; i < eventHeader.dwCount; i++)
{
SpaceMouseTranslationEventData translation = (SpaceMouseTranslationEventData)Marshal.PtrToStructure(buffer + eventHeaderSize + i * (int)eventHeader.dwSizeHid, typeof(SpaceMouseTranslationEventData));
tEvt(this, new SpaceMouseTranslationEventArgs(inputHeader.hDevice, translation.X, translation.Y, translation.Z));
}
}
}
else if (eventHeader.dwSizeHid == 13) // "High Speed" firmware version includes both T and R vector in the same report
{
EventHandler <SpaceMouseTranslationEventArgs> tEvt = Translation;
EventHandler <SpaceMouseRotationEventArgs> rEvt = Rotation;
if (tEvt != null || rEvt != null) // no need to handle if nobody is listing
{
for (int i = 0; i < eventHeader.dwCount; i++)
{
SpaceMouseTranslationRotationEventData transRot = (SpaceMouseTranslationRotationEventData)Marshal.PtrToStructure(buffer + eventHeaderSize + i * (int)eventHeader.dwSizeHid, typeof(SpaceMouseTranslationRotationEventData));
if (tEvt != null)
{
tEvt(this, new SpaceMouseTranslationEventArgs(inputHeader.hDevice, transRot.X, transRot.Y, transRot.Z));
}
if (rEvt != null)
{
rEvt(this, new SpaceMouseRotationEventArgs(inputHeader.hDevice, transRot.RX, transRot.RY, transRot.RZ));
}
}
}
}
break;
case SpaceMouseEventType.Rotation:
if (eventHeader.dwSizeHid == 7) // check report size for safety
{
EventHandler <SpaceMouseRotationEventArgs> rEvt = Rotation;
if (rEvt != null) // no need to handle if nobody is listing
{
for (int i = 0; i < eventHeader.dwCount; i++)
{
SpaceMouseRotationEventData rotation = (SpaceMouseRotationEventData)Marshal.PtrToStructure(buffer + eventHeaderSize + i * (int)eventHeader.dwSizeHid, typeof(SpaceMouseRotationEventData));
rEvt(this, new SpaceMouseRotationEventArgs(inputHeader.hDevice, rotation.RX, rotation.RY, rotation.RZ));
}
}
}
break;
case SpaceMouseEventType.Buttons:
if (eventHeader.dwSizeHid >= 5) // check report size for safety
{
EventHandler <SpaceMouseButtonsEventArgs> bEvt = Buttons;
if (bEvt != null) // no need to handle if nobody is listing
{
if (!DeviceToProduct.ContainsKey(inputHeader.hDevice))
{
var di = RawInput.GetRawInputDeviceInfo(inputHeader.hDevice);
DeviceToProduct.Add(inputHeader.hDevice, di.hid.dwProductId);
}
uint product = DeviceToProduct[inputHeader.hDevice];
for (int i = 0; i < eventHeader.dwCount; i++)
{
SpaceMouseButtonsEventData tmpButtons = (SpaceMouseButtonsEventData)Marshal.PtrToStructure(buffer + eventHeaderSize + i * (int)eventHeader.dwSizeHid, typeof(SpaceMouseButtonsEventData));
SpaceMouseButtons buttons = SpaceMouseButtons.NONE;
switch (product)
{
case ProductID.SpacePilot: buttons = FromSpacePilot(tmpButtons.ButtonState); break;
case ProductID.SpaceExplorer: buttons = FromSpaceExplorer(tmpButtons.ButtonState); break;
case ProductID.SpaceNavigator:
case ProductID.SpaceNavigatorforNotebooks:
case ProductID.SpaceMouse:
case ProductID.SpaceMouseWireless: buttons = FromSpaceMouse(tmpButtons.ButtonState); break;
case ProductID.SpacePilotPro: buttons = FromSpacePilotPro(tmpButtons.ButtonState); break;
case ProductID.SpaceMousePro:
case ProductID.SpaceMouseProWireless: buttons = FromSpaceMousePro(tmpButtons.ButtonState); break;
case ProductID.SpaceMouseTouch: buttons = FromSpaceMouseTouch(tmpButtons.ButtonState); break;
}
bEvt(this, new SpaceMouseButtonsEventArgs(inputHeader.hDevice, buttons));
}
}
}
break;
}
}
finally
{
Marshal.FreeHGlobal(buffer);
}
}
/// <summary>
/// Converts the button event data for SpaceExplorer.
/// </summary>
/// <param name="buttons">The buttons event data.</param>
/// <returns>A <see cref="SpaceMouseButtons"/> specifying the state of the device buttons.</returns>
SpaceMouseButtons FromSpaceExplorer(uint buttons)
{
SpaceMouseButtons ret = SpaceMouseButtons.NONE;
if ((buttons & 0x00000001) != 0)
{
ret |= SpaceMouseButtons.BUTTON1;
}
if ((buttons & 0x00000002) != 0)
{
ret |= SpaceMouseButtons.BUTTON2;
}
if ((buttons & 0x00000004) != 0)
{
ret |= SpaceMouseButtons.TOP;
}
if ((buttons & 0x00000008) != 0)
{
ret |= SpaceMouseButtons.LEFT;
}
if ((buttons & 0x00000010) != 0)
{
ret |= SpaceMouseButtons.RIGHT;
}
if ((buttons & 0x00000020) != 0)
{
ret |= SpaceMouseButtons.FRONT;
}
if ((buttons & 0x00000040) != 0)
{
ret |= SpaceMouseButtons.ESCAPE;
}
if ((buttons & 0x00000080) != 0)
{
ret |= SpaceMouseButtons.ALT;
}
if ((buttons & 0x00000100) != 0)
{
ret |= SpaceMouseButtons.SHIFT;
}
if ((buttons & 0x00000200) != 0)
{
ret |= SpaceMouseButtons.CTRL;
}
if ((buttons & 0x00000400) != 0)
{
ret |= SpaceMouseButtons.FIT;
}
if ((buttons & 0x00000800) != 0)
{
ret |= SpaceMouseButtons.PANEL;
}
if ((buttons & 0x00001000) != 0)
{
ret |= SpaceMouseButtons.PLUS;
}
if ((buttons & 0x00002000) != 0)
{
ret |= SpaceMouseButtons.MINUS;
}
if ((buttons & 0x00004000) != 0)
{
ret |= SpaceMouseButtons.ROTATE;
}
return(ret);
}
/// <summary>
/// Converts the button event data for SpacePilot.
/// </summary>
/// <param name="buttons">The buttons event data.</param>
/// <returns>A <see cref="SpaceMouseButtons"/> specifying the state of the device buttons.</returns>
SpaceMouseButtons FromSpacePilot(uint buttons)
{
SpaceMouseButtons ret = SpaceMouseButtons.NONE;
if ((buttons & 0x00000001) != 0)
{
ret |= SpaceMouseButtons.BUTTON1;
}
if ((buttons & 0x00000002) != 0)
{
ret |= SpaceMouseButtons.BUTTON2;
}
if ((buttons & 0x00000004) != 0)
{
ret |= SpaceMouseButtons.BUTTON3;
}
if ((buttons & 0x00000008) != 0)
{
ret |= SpaceMouseButtons.BUTTON4;
}
if ((buttons & 0x00000010) != 0)
{
ret |= SpaceMouseButtons.BUTTON5;
}
if ((buttons & 0x00000020) != 0)
{
ret |= SpaceMouseButtons.BUTTON6;
}
if ((buttons & 0x00000040) != 0)
{
ret |= SpaceMouseButtons.TOP;
}
if ((buttons & 0x00000080) != 0)
{
ret |= SpaceMouseButtons.LEFT;
}
if ((buttons & 0x00000100) != 0)
{
ret |= SpaceMouseButtons.RIGHT;
}
if ((buttons & 0x00000200) != 0)
{
ret |= SpaceMouseButtons.FRONT;
}
if ((buttons & 0x00000400) != 0)
{
ret |= SpaceMouseButtons.ESCAPE;
}
if ((buttons & 0x00000800) != 0)
{
ret |= SpaceMouseButtons.ALT;
}
if ((buttons & 0x00001000) != 0)
{
ret |= SpaceMouseButtons.SHIFT;
}
if ((buttons & 0x00002000) != 0)
{
ret |= SpaceMouseButtons.CTRL;
}
if ((buttons & 0x00004000) != 0)
{
ret |= SpaceMouseButtons.FIT;
}
if ((buttons & 0x00008000) != 0)
{
ret |= SpaceMouseButtons.PANEL;
}
if ((buttons & 0x00010000) != 0)
{
ret |= SpaceMouseButtons.PLUS;
}
if ((buttons & 0x00020000) != 0)
{
ret |= SpaceMouseButtons.MINUS;
}
if ((buttons & 0x00040000) != 0)
{
ret |= SpaceMouseButtons.DOMINANT;
}
if ((buttons & 0x00080000) != 0)
{
ret |= SpaceMouseButtons.ROTATE;
}
// ignore USER keys
return(ret);
}
/// <summary>
/// Constructs an instance with parameters set.
/// </summary>
/// <param name="hDevice">The handle of the device.</param>
/// <param name="buttons">The button states.</param>
public SpaceMouseButtonsEventArgs(IntPtr hDevice, SpaceMouseButtons buttons)
{
this.hDevice = hDevice;
Buttons = buttons;
}