internal static extern SafeFileHandle CreateFile(
string lpFileName,
DesiredAccesses dwDesiredAccess,
ShareModes dwShareMode,
ref SECURITY_ATTRIBUTES lpSecurityAttributes,
int dwCreationDisposition,
FileFlags dwFlagsAndAttributes,
int hTemplateFile);
public SafeFileHandle OpenDevice(string devicePath, DesiredAccesses deviceAccesses, ShareModes shareModes, FileFlags flags)
{
if (IsThrow)
{
throw new Exception("TestException");
}
var returnValue = IsFailureHandle ? IntPtr.Zero : new IntPtr(1);
IsOpenDevice = true;
return(new SafeFileHandle(returnValue, true));
}
public SafeFileHandle OpenDevice(string devicePath, DesiredAccesses deviceAccesses, ShareModes shareModes, FileFlags flags)
{
if (devicePath == null)
{
throw new ArgumentNullException($"{nameof(devicePath)} is null");
}
var security = new SECURITY_ATTRIBUTES(true);
SafeFileHandle result = NativeMethods.CreateFile(devicePath, deviceAccesses, shareModes, ref security, NativeMethods.OPEN_EXISTING, flags, 0);
if (result.IsInvalid)
{
Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
}
return(result);
}
public static extern SafeFileHandle CreateFile(string lpFileName, DesiredAccesses dwDesiredAccess, ShareModes dwShareMode, IntPtr lpSecurityAttributes, CreationDispositions dwCreationDisposition, FlagsAndAttributes dwFlagsAndAttributes, IntPtr hTemplateFile);
public static extern SafeFileHandle CreateFile(string lpFileName, DesiredAccesses dwDesiredAccess, ShareModes dwShareMode, IntPtr lpSecurityAttributes, CreationDispositions dwCreationDisposition, FlagsAndAttributes dwFlagsAndAttributes, IntPtr hTemplateFile);