private bool OpenFileHandle(Win32FileAccess desiredAccess)
{
handle = Kernel32Methods.CreateFile(
devicePath,
desiredAccess,
FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, (uint)Win32FileAttributes.Overlapped, IntPtr.Zero);
return(handle.IsInvalid == false);
}
/// <summary>
/// Initializes a new instance of the <see cref="HidStream"/> class.
/// </summary>
/// <param name="devicePath">The path of the associated device.</param>
public HidStream(string devicePath)
{
this.devicePath = devicePath;
// Create the file handler from the device path
// Win10 requires shared access
this.handle = Kernel32Methods.CreateFile(
devicePath,
Win32Api.Win32FileAccess.GenericRead | Win32FileAccess.GenericWrite,
FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, Win32FileAttributes.Overlapped, IntPtr.Zero);
//this.handle = Kernel32Methods.CreateFile(
// devicePath,
// Win32Api.Win32FileAccess.GenericRead | Win32FileAccess.GenericWrite,
// FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, Win32FileAttributes.Overlapped, IntPtr.Zero);
if (this.handle.IsInvalid)
{
// TODO: raise a better exception
throw new Exception("Failed to create device file", new Win32Exception(Marshal.GetLastWin32Error()));
}
}