public DetailsForm(HidDevice dev)
{
InitializeComponent();
if (dev == null || dev.IsInvalid)
{
Close();
return;
}
lblProdName.Text += " " + dev.Product;
lblVendName.Text += " " + dev.Manufacturer;
lblSerialNum.Text += " " + dev.SerialNumber;
Hid.HiddAttributes att = dev.Attributes;
lblVid.Text += " " + att.VendorId.ToString("X4");
lblPid.Text += " " + att.ProductId.ToString("X4");
lblRev.Text += " " + att.VersionNumber.ToString("X4");
Hid.HidpCaps caps = dev.Capabilities;
lblInputSize.Text += " " + caps.InputReportByteLength + " bytes";
lblOutputSize.Text += " " + caps.OutputReportByteLength + " bytes";
lblFeatureSize.Text += " " + caps.FeatureReportByteLength + " bytes";
listBoxValueCaps.DisplayMember = "Text";
foreach (var inCap in dev.InputValueCaps)
{
AddValueCap(inCap, "Input Report");
}
foreach (var outCap in dev.OutputValueCaps)
{
AddValueCap(outCap, "Output Report");
}
foreach (var featCap in dev.FeatureValueCaps)
{
AddValueCap(featCap, "Feature Report");
}
for (uint i = 1; i < 255; i++)
{
string str = dev.GetIndexedString(i);
if (!string.IsNullOrEmpty(str))
{
listBoxStrings.Items.Add(i.ToString() + ": " + str);
}
else
{
break; //HACK Logitech G105 keyboard crashes unless this is here
}
}
}
private void devicesListView_SelectedIndexChanged(object sender, EventArgs e)
{
if (backgroundReadToolStripMenuItem.Checked)
{
if (!CancelBackgroundWorkerAndWait(readThread))
{
return;
}
}
if (devicesListView.SelectedIndices.Count == 0)
{
return;
}
if (currentDevice != null)
{
currentDevice.Dispose();
currentDevice = null;
}
lastSelectedDevice = (string)devicesListView.SelectedItems[0].Tag;
currentDevice = new HidDevice(lastSelectedDevice);
if (currentDevice.IsInvalid)
{
currentDevice.Dispose();
currentDevice = null;
}
Hid.HidpCaps caps = currentDevice.Capabilities;
int numBytes = caps.InputReportByteLength;
numBytes = Math.Max(numBytes, caps.OutputReportByteLength);
numBytes = Math.Max(numBytes, caps.FeatureReportByteLength);
numBytes -= 1; //first byte is always report id,
for (int i = 0; i < byteTextboxes.Length; i++)
{
byteTextboxes[i].Visible = (i < numBytes);
}
inBuffer = new byte[caps.InputReportByteLength];
outBuffer = new byte[caps.OutputReportByteLength];
featureBuffer = new byte[caps.FeatureReportByteLength];
btnRead.Enabled = (caps.InputReportByteLength != 0);
btnWrite.Enabled = (caps.OutputReportByteLength != 0);
btnGetReport.Enabled = (caps.InputReportByteLength != 0);
btnSetReport.Enabled = (caps.OutputReportByteLength != 0);
btnGetFeature.Enabled = (caps.FeatureReportByteLength != 0);
btnSetFeature.Enabled = (caps.FeatureReportByteLength != 0);
numPackets = 0;
numTimeouts = 0;
toolStripTimeouts.Text = "Timeouts: 0/0";
if (backgroundReadToolStripMenuItem.Checked && caps.InputReportByteLength != 0)
{
readThread.RunWorkerAsync(currentDevice);
}
}
public HidDevice(string path)
{
//device mutex
lockObject = new object();
//static buffers
strBuffer = new StringBuilder(256);
//open device
//TODO why is 0x40000000 missing from FileAttribute in PInvoke?
reference = Kernel32.CreateFile(path, Kernel32.ACCESS_MASK.GenericRight.GENERIC_WRITE, Kernel32.FileShare.FILE_SHARE_READ | Kernel32.FileShare.FILE_SHARE_WRITE, IntPtr.Zero, Kernel32.CreationDisposition.OPEN_EXISTING, Kernel32.CreateFileFlags.FILE_FLAG_OVERLAPPED, Kernel32.SafeObjectHandle.Null);
if (reference.IsInvalid)
{
return;
}
//overlapped
fileEvent = new ManualResetEvent(false);
fileOverlapped = new SafeOverlapped(fileEvent);
//get preparsed data
if (!Hid.HidD_GetPreparsedData(reference, out preparsedData))
{
return;
}
//transfer buffers
capabilities = Hid.HidP_GetCaps(preparsedData);
inBuffer = new byte[capabilities.InputReportByteLength];
outBuffer = new byte[capabilities.OutputReportByteLength];
featureBuffer = new byte[capabilities.FeatureReportByteLength];
//dynamic caps
inputValueCaps = new List <ValueCaps>();
outputValueCaps = new List <ValueCaps>();
featureValueCaps = new List <ValueCaps>();
ushort numInputCaps = capabilities.NumberInputValueCaps;
ushort numOutputCaps = capabilities.NumberOutputValueCaps;
ushort numFeatureCaps = capabilities.NumberFeatureValueCaps;
ushort maxValueCaps = Math.Max(numInputCaps, numOutputCaps);
maxValueCaps = Math.Max(maxValueCaps, numFeatureCaps);
int valueCapSize = Marshal.SizeOf <ValueCaps>();
IntPtr valueCapPtr = Marshal.AllocHGlobal(maxValueCaps * valueCapSize);
HidPStatus stat = Hid.HidP_GetValueCaps(ReportType.Input, valueCapPtr, ref numInputCaps, preparsedData);
for (int i = 0; i < numInputCaps; i++)
{
ValueCaps val = Marshal.PtrToStructure <ValueCaps>(new IntPtr(valueCapPtr.ToInt64() + (i * valueCapSize)));
inputValueCaps.Add(val);
}
stat = Hid.HidP_GetValueCaps(ReportType.Output, valueCapPtr, ref numOutputCaps, preparsedData);
for (int i = 0; i < numOutputCaps; i++)
{
ValueCaps val = Marshal.PtrToStructure <ValueCaps>(new IntPtr(valueCapPtr.ToInt64() + i * valueCapSize));
outputValueCaps.Add(val);
}
stat = Hid.HidP_GetValueCaps(ReportType.Feature, valueCapPtr, ref numFeatureCaps, preparsedData);
for (int i = 0; i < numFeatureCaps; i++)
{
ValueCaps val = Marshal.PtrToStructure <ValueCaps>(new IntPtr(valueCapPtr.ToInt64() + i * valueCapSize));
featureValueCaps.Add(val);
}
Marshal.FreeHGlobal(valueCapPtr);
}
