internal bool GetInfo(IntPtr handle)
{
NativeMethods.HIDD_ATTRIBUTES attributes = new NativeMethods.HIDD_ATTRIBUTES();
attributes.Size = Marshal.SizeOf(attributes);
if (!NativeMethods.HidD_GetAttributes(handle, ref attributes)) { return false; }
_pid = attributes.ProductID;
_vid = attributes.VendorID;
_version = attributes.VersionNumber;
return true;
}
internal bool GetInfo(IntPtr handle)
{
NativeMethods.HIDD_ATTRIBUTES attributes = new NativeMethods.HIDD_ATTRIBUTES();
attributes.Size = Marshal.SizeOf(attributes);
if (!NativeMethods.HidD_GetAttributes(handle, ref attributes))
{
return(false);
}
_pid = attributes.ProductID;
_vid = attributes.VendorID;
_version = attributes.VersionNumber;
return(true);
}
internal static WinHidDevice TryCreate(string path, string id)
{
var d = new WinHidDevice()
{
_path = path, _id = id
};
return(d.TryOpenToGetInfo(handle =>
{
NativeMethods.HIDD_ATTRIBUTES attributes = new NativeMethods.HIDD_ATTRIBUTES();
attributes.Size = Marshal.SizeOf(attributes);
if (!NativeMethods.HidD_GetAttributes(handle, ref attributes))
{
return false;
}
// Get VID, PID, version.
d._pid = attributes.ProductID;
d._vid = attributes.VendorID;
d._version = attributes.VersionNumber;
return true;
}) ? d : null);
}
