Add sources of version 1.1

NOTICE

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+Copyright 2013-2015 IDRIX
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and 
+limitations under the License. 
+____________________________________________________________
+
+Copyright (c) 2008-2012 TrueCrypt Developers Association. All rights reserved.
+
+Governed by the TrueCrypt License 3.0 the full text of which is contained in
+the file License.txt included in TrueCrypt binary and source code distribution
+packages.
+____________________________________________________________
+
+License agreement for Encryption for the Masses.
+
+Copyright (C) 1998-2000 Paul Le Roux. All Rights Reserved.
+
+This product can be copied and distributed free of charge,
+including source code.
+
+You may modify this product and source code, and distribute such
+modifications, and you may derive new works based on this
+product, provided that:
+
+1. Any product which is simply derived from this product cannot
+be called E4M, or Encryption for the Masses.
+
+2. If you use any of the source code in your product, and your
+product is distributed with source code, you must include this
+notice with those portions of this source code that you use.
+
+Or,
+
+If your product is distributed in binary form only, you must
+display on any packaging, and marketing materials which
+reference your product, a notice which states:
+
+"This product uses components written by Paul Le Roux
+<pleroux@swprofessionals.com>"
+
+3. If you use any of the source code originally by Eric Young,
+you must in addition follow his terms and conditions.
+
+4. Nothing requires that you accept this License, as you have
+not signed it. However, nothing else grants you permission to
+modify or distribute the product or its derivative works.
+
+These actions are prohibited by law if you do not accept this
+License.
+
+5. If any of these license terms is found to be to broad in
+scope, and declared invalid by any court or legal process, you
+agree that all other terms shall not be so affected, and shall
+remain valid and enforceable.
+
+6. THIS PROGRAM IS DISTRIBUTED FREE OF CHARGE, THEREFORE THERE
+IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. UNLESS OTHERWISE STATED THE PROGRAM IS PROVIDED
+"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR
+IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
+ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS
+WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE
+COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+7. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY
+MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE
+LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
+INABILITY TO USE THE PROGRAM, INCLUDING BUT NOT LIMITED TO LOSS
+OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH
+ANY OTHER PROGRAMS, EVEN IF SUCH HOLDER OR OTHER PARTY HAD
+PREVIOUSLY BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+____________________________________________________________
+
+Copyright (c) 1998-2008, Brian Gladman, Worcester, UK.
+All rights reserved.
+
+LICENSE TERMS
+
+The free distribution and use of this software is allowed (with
+or without changes) provided that:
+
+ 1. source code distributions include the above copyright
+    notice, this list of conditions and the following
+    disclaimer;
+
+ 2. binary distributions include the above copyright notice,
+    this list of conditions and the following disclaimer in
+    their documentation;
+
+ 3. the name of the copyright holder is not used to endorse
+    products built using this software without specific written
+    permission.
+
+DISCLAIMER
+
+This software is provided 'as is' with no explicit or implied
+warranties in respect of its properties, including, but not
+limited to, correctness and/or fitness for purpose.
+____________________________________________________________
+
+Copyright (C) 2002-2004 Mark Adler, all rights reserved
+version 1.8, 9 Jan 2004
+
+This software is provided 'as-is', without any express or
+implied warranty.  In no event will the author be held liable
+for any damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any
+purpose, including commercial applications, and to alter it and
+redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you
+   must not claim that you wrote the original software. If you
+   use this software in a product, an acknowledgment in the
+   product documentation would be appreciated but is not
+   required.
+2. Altered source versions must be plainly marked as such, and
+   must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source
+   distribution.
+____________________________________________________________

src/ConcealDrive.cpp

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+/*
+ Copyright (c) 2013-2016 IDRIX. All rights reserved.
+
+ Governed by the Apache License 2.0 the full text of which is
+ contained in the file License.txt included in VeraCrypt binary and source
+ code distribution packages.
+*/
+
+
+// ConcealDrive.cpp : main source file for ConcealDrive.exe
+//
+
+#include "stdafx.h"
+
+#include <atlframe.h>
+#include <atlctrls.h>
+#include <atldlgs.h>
+
+#include "resource.h"
+
+#include "MainDlg.h"
+
+CAppModule _Module;
+
+int ScreenDPI = USER_DEFAULT_SCREEN_DPI;
+double DPIScaleFactorX = 1;
+double DPIScaleFactorY = 1;
+double DlgAspectRatio = 1;
+
+// This function currently serves the following purposes:
+// - Determines scaling factors for current screen DPI and GUI aspect ratio.
+// - Determines how Windows skews the GUI aspect ratio (which happens when the user has a non-default DPI).
+// The determined values must be used when performing some GUI operations and calculations.
+BOOL CALLBACK AuxiliaryDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	switch (msg)
+	{
+	case WM_INITDIALOG:
+		{
+			HDC hDC = GetDC (hwndDlg);
+
+			if (hDC)
+			{
+				ScreenDPI = GetDeviceCaps (hDC, LOGPIXELSY);
+				ReleaseDC (hwndDlg, hDC); 
+			}
+
+			DPIScaleFactorX = 1;
+			DPIScaleFactorY = 1;
+			DlgAspectRatio = 1;
+
+			if (ScreenDPI != USER_DEFAULT_SCREEN_DPI)
+			{
+				// Windows skews the GUI aspect ratio if the user has a non-default DPI. Hence, working with 
+				// actual screen DPI is redundant and leads to incorrect results. What really matters here is
+				// how Windows actually renders our GUI. This is determined by comparing the expected and current
+				// sizes of a hidden calibration text field.
+
+				RECT trec;
+
+				trec.right = 0;
+				trec.bottom = 0;
+
+				GetClientRect (GetDlgItem (hwndDlg, IDC_ASPECT_RATIO_CALIBRATION_BOX), &trec);
+
+				if (trec.right != 0 && trec.bottom != 0)
+				{
+					// The size of the 282x282 IDC_ASPECT_RATIO_CALIBRATION_BOX rendered at the default DPI (96) is 423x458
+					DPIScaleFactorX = (double) trec.right / 423;
+					DPIScaleFactorY = (double) trec.bottom / 458;
+					DlgAspectRatio = DPIScaleFactorX / DPIScaleFactorY;
+				}
+			}
+
+			EndDialog (hwndDlg, 0);
+			return 1;
+		}
+
+	case WM_CLOSE:
+		EndDialog (hwndDlg, 0);
+		return 1;
+	}
+
+	return 0;
+}
+
+RTLINITUNICODESTRING RtlInitUnicodeString = NULL;
+NTOPENSYMBOLICLINKOBJECT NtOpenSymbolicLinkObject = NULL;
+NTQUERYSYMBOLICLINKOBJECT NtQuerySymbolicLinkObject = NULL;
+NTCLOSE NtClose= NULL;
+
+
+int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE /*hPrevInstance*/, LPTSTR /*lpstrCmdLine*/, int /*nCmdShow*/)
+{
+	HRESULT hRes = ::CoInitialize(NULL);
+// If you are running on NT 4.0 or higher you can use the following call instead to 
+// make the EXE free threaded. This means that calls come in on a random RPC thread.
+//	HRESULT hRes = ::CoInitializeEx(NULL, COINIT_MULTITHREADED);
+	ATLASSERT(SUCCEEDED(hRes));
+
+	// this resolves ATL window thunking problem when Microsoft Layer for Unicode (MSLU) is used
+	::DefWindowProc(NULL, 0, 0, 0L);
+
+	AtlInitCommonControls(ICC_BAR_CLASSES);	// add flags to support other controls
+
+	hRes = _Module.Init(NULL, hInstance);
+	ATLASSERT(SUCCEEDED(hRes));
+
+   HMODULE _hModule = LoadLibrary(_T("ntdll.dll"));
+
+   RtlInitUnicodeString = (RTLINITUNICODESTRING)GetProcAddress(_hModule, "RtlInitUnicodeString");
+   NtOpenSymbolicLinkObject = (NTOPENSYMBOLICLINKOBJECT)GetProcAddress(_hModule, "NtOpenSymbolicLinkObject");
+   NtQuerySymbolicLinkObject = (NTQUERYSYMBOLICLINKOBJECT)GetProcAddress(_hModule, "NtQuerySymbolicLinkObject");
+   NtClose = (NTCLOSE) GetProcAddress(_hModule, "NtClose");
+
+	// DPI and GUI aspect ratio
+	DialogBoxParamW (hInstance, MAKEINTRESOURCEW (IDD_DPI), NULL,
+		(DLGPROC) AuxiliaryDlgProc, (LPARAM) 1);
+
+	int nRet = 0;
+	// BLOCK: Run application
+	{
+		CMainDlg dlgMain;
+		nRet = dlgMain.DoModal();
+	}
+
+	_Module.Term();
+	::CoUninitialize();
+
+	return nRet;
+}

src/ConcealDrive.h

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+// ConcealDrive.h