|
private DefRawInputProc ( |
||
| RawInput | ||
| Input | INT | |
| SizeHeader | UINT | |
| return | LRESULT | |
/// <summary>
/// Processes the input Windows Message, routing the buffer to the correct Keyboard, Mouse or HID.
/// </summary>
/// <param name="msg">The WM_INPUT message, containing the buffer on the input event.</param>
protected override void WndProc(ref Message msg)
{
switch ((WindowMessage)msg.Msg)
{
case WindowMessage.INPUT:
int size = 0;
// Get the size of the input buffer
Functions.GetRawInputData(msg.LParam, GetRawInputDataEnum.INPUT,
IntPtr.Zero, ref size, API.RawInputHeaderSize);
//if (buffer == null || API.RawInputSize < size)
//{
// throw new ApplicationException("Critical error when processing raw windows input.");
//}
if (size == Functions.GetRawInputData(msg.LParam, GetRawInputDataEnum.INPUT,
out data, ref size, API.RawInputHeaderSize))
{
switch (data.Header.Type)
{
case RawInputDeviceType.KEYBOARD:
if (!keyboardDriver.ProcessKeyboardEvent(data))
{
Functions.DefRawInputProc(ref data, 1, (uint)API.RawInputHeaderSize);
}
return;
case RawInputDeviceType.MOUSE:
if (!mouseDriver.ProcessEvent(data))
{
Functions.DefRawInputProc(ref data, 1, (uint)API.RawInputHeaderSize);
}
return;
case RawInputDeviceType.HID:
Functions.DefRawInputProc(ref data, 1, (uint)API.RawInputHeaderSize);
return;
default:
break;
}
}
else
{
throw new ApplicationException(String.Format(
"GetRawInputData returned invalid buffer. Windows error {0}. Please file a bug at http://opentk.sourceforge.net",
Marshal.GetLastWin32Error()));
}
break;
case WindowMessage.DESTROY:
Debug.Print("Input window detached from parent {0}.", Handle);
ReleaseHandle();
break;
case WindowMessage.QUIT:
Debug.WriteLine("Input window quit.");
this.Dispose();
break;
}
base.WndProc(ref msg);
}
public void Poll()
{
return;
#if false
// We will do a buffered read for all input devices and route the RawInput structures
// to the correct 'ProcessData' handlers. First, we need to find out the size of the
// buffer to allocate for the structures. Then we allocate the buffer and read the
// structures, calling the correct handler for each one. Last, we free the allocated
// buffer.
int size = 0;
Functions.GetRawInputBuffer(IntPtr.Zero, ref size, API.RawInputHeaderSize);
size *= 256;
IntPtr rin_data = Marshal.AllocHGlobal(size);
while (true)
{
// Iterate reading all available RawInput structures and routing them to their respective
// handlers.
int num = Functions.GetRawInputBuffer(rin_data, ref size, API.RawInputHeaderSize);
if (num == 0)
{
break;
}
else if (num < 0)
{
/*int error = Marshal.GetLastWin32Error();
* if (error == 122)
* {
* // Enlarge the buffer, it was too small.
* AllocateBuffer();
* }
* else
* {
* throw new ApplicationException(String.Format(
* "GetRawInputBuffer failed with code: {0}", error));
* }*/
Debug.Print("GetRawInputBuffer failed with code: {0}", Marshal.GetLastWin32Error());
//AllocateBuffer();
break;
}
RawInput[] rin_structs = new RawInput[num];
IntPtr next_rin = rin_data;
for (int i = 0; i < num; i++)
{
rin_structs[i] = (RawInput)Marshal.PtrToStructure(next_rin, typeof(RawInput));
switch (rin_structs[i].Header.Type)
{
case RawInputDeviceType.KEYBOARD:
keyboardDriver.ProcessKeyboardEvent(rin_structs[i]);
break;
case RawInputDeviceType.MOUSE:
mouseDriver.ProcessEvent(rin_structs[i]);
break;
}
next_rin = Functions.NextRawInputStructure(next_rin);
}
Functions.DefRawInputProc(rin_structs, num, (uint)API.RawInputHeaderSize);
}
Marshal.FreeHGlobal(rin_data);
#endif
}