internal HidDeviceCapabilities(NativeMethods.HidpCaps capabilities)
{
Usage = capabilities.Usage;
UsagePage = capabilities.UsagePage;
InputReportByteLength = capabilities.InputReportByteLength;
OutputReportByteLength = capabilities.OutputReportByteLength;
FeatureReportByteLength = capabilities.FeatureReportByteLength;
Reserved = capabilities.Reserved;
NumberLinkCollectionNodes = capabilities.NumberLinkCollectionNodes;
NumberInputButtonCaps = capabilities.NumberInputButtonCaps;
NumberInputValueCaps = capabilities.NumberInputValueCaps;
NumberInputDataIndices = capabilities.NumberInputDataIndices;
NumberOutputButtonCaps = capabilities.NumberOutputButtonCaps;
NumberOutputValueCaps = capabilities.NumberOutputValueCaps;
NumberOutputDataIndices = capabilities.NumberOutputDataIndices;
NumberFeatureButtonCaps = capabilities.NumberFeatureButtonCaps;
NumberFeatureValueCaps = capabilities.NumberFeatureValueCaps;
NumberFeatureDataIndices = capabilities.NumberFeatureDataIndices;
}
private static bool GetDeviceCapabilities(SafeFileHandle hidHandle, ref NativeMethods.HidpCaps deviceCapabilities)
{
var preparsedData = new IntPtr();
try
{
NativeMethods.HidD_GetPreparsedData(hidHandle, ref preparsedData);
NativeMethods.HidP_GetCaps(preparsedData, ref deviceCapabilities);
return(true);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(false);
}
finally
{
if (preparsedData != IntPtr.Zero)
{
NativeMethods.HidD_FreePreparsedData(preparsedData);
}
}
}
