add tobii eyex sdk

19 files changed, 538 insertions, 0 deletions

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.command.1.tlog b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.command.1.tlog
new file mode 100755
index 0000000..ca3124c
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.command.1.tlog
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.read.1.tlog b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.read.1.tlog
new file mode 100755
index 0000000..b9b14b8
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.read.1.tlog
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.write.1.tlog b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.write.1.tlog
new file mode 100755
index 0000000..c26f1a7
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/CL.write.1.tlog
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/MinimalUserProfiles.lastbuildstate b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/MinimalUserProfiles.lastbuildstate
new file mode 100755
index 0000000..5cd4c3b
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/MinimalUserProfiles.lastbuildstate
@@ -0,0 +1,2 @@
+#TargetFrameworkVersion=v4.0:PlatformToolSet=v140:EnableManagedIncrementalBuild=false:VCToolArchitecture=Native32Bit:WindowsTargetPlatformVersion=8.1

+Debug|Win32|D:\dev\tobii\samples\|

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.command.1.tlog b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.command.1.tlog
new file mode 100755
index 0000000..586a19e
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.command.1.tlog
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.read.1.tlog b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.read.1.tlog
new file mode 100755
index 0000000..1b2f2e9
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.read.1.tlog
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.write.1.tlog b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.write.1.tlog
new file mode 100755
index 0000000..4add4c6
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalU.7644167B.tlog/link.write.1.tlog
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalUserProfiles.log b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalUserProfiles.log
new file mode 100755
index 0000000..2a34286
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalUserProfiles.log
@@ -0,0 +1,4 @@
+  stdafx.cpp

+  MinimalUserProfiles.cpp

+  Generating Code...

+  MinimalUserProfiles.vcxproj -> D:\dev\tobii\samples\Debug\MinimalUserProfiles.exe

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalUserProfiles.obj b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalUserProfiles.obj
new file mode 100755
index 0000000..1a00765
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/MinimalUserProfiles.obj
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/stdafx.obj b/Tobii EyeX/samples/MinimalUserProfiles/Debug/stdafx.obj
new file mode 100755
index 0000000..ea32af6
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/stdafx.obj
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/vc140.idb b/Tobii EyeX/samples/MinimalUserProfiles/Debug/vc140.idb
new file mode 100755
index 0000000..b32eb42
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/vc140.idb
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/Debug/vc140.pdb b/Tobii EyeX/samples/MinimalUserProfiles/Debug/vc140.pdb
new file mode 100755
index 0000000..3ce102d
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/Debug/vc140.pdb
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.cpp b/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.cpp
new file mode 100755
index 0000000..022486b
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.cpp
@@ -0,0 +1,269 @@
+/*

+ * MinimalUserProfiles sample:

+ * This is an example that demontrates how to retrieve and listen to changes to 

+ * the states Current Profile Name and Profiles, and how to change the Current

+ * Profile.

+ * 

+ * (It is written in mostly very C-style C++, to make it similar to the other

+ * minimal samples but still make use of std::vector and std::string. Using those

+ * makes the implementation more straightforward when handling the Profile state 

+ * which is very dynamic in nature: an unknown number of profile name entries of 

+ * unknown size.) 

+ *

+ * Known limitation: this sample only works correctly for up to 10 profiles. It

+ * will list all profiles, but the input will only read one digit, so 9 will be

+ * the highest selectable index.

+ *

+ * Copyright 2015 Tobii AB (publ). All rights reserved.

+ */

+

+#include <Windows.h>

+#include <stdio.h>

+#include <conio.h>

+#include "stdafx.h"

+#include "eyex\EyeX.h"

+

+#pragma comment (lib, "Tobii.EyeX.Client.lib")

+

+static const UINT32 MIN_SIZE = 1; 

+static const TX_STRING MIN_ENGINE_VERSION = "1.3.0";

+

+// global variables

+static TX_CONTEXTHANDLE g_hContext = TX_EMPTY_HANDLE;

+static std::string g_currentProfileName = "";

+static std::vector<std::string> g_profiles;

+

+/*

+ * Prints info about the current user profile, all available profiles and how 

+ * to change to another profile.

+ */

+void PrintInfo()

+{

+    if (g_currentProfileName.length() < MIN_SIZE || g_profiles.size() < MIN_SIZE) {

+        return;

+    }

+

+    printf("\n-------------------------------------------------------------------------\n");

+    printf("\n  Current user profile: %s\n", g_currentProfileName.c_str());

+    printf("\n  All user profiles:\n");

+    int index = 0;

+    for (std::string profile : g_profiles) {

+        printf("   %i. %s\n", index++, profile.c_str());

+    }

+    printf("\n-------------------------------------------------------------------------\n");

+    printf("\nEnter the number of the profile you want to change to (or 'q' to quit): ");

+}

+

+/*

+ * Tries to extract an array of strings for the given state bag and state path. 

+ * Returns TX_TRUE if successful, TX_FALSE otherwise.

+ * If successful, the arrayOfStrings parameter will be populated with the strings.

+ * 

+ * This can be used to "unpack" a state bag with a TX_STATEPATH_EYETRACKINGPROFILES

+ * state's multiple null-terminated string to a more manageable format.

+ */

+TX_BOOL GetStateValueAsArrayOfStrings(TX_CONSTHANDLE hStateBag, TX_CONSTSTRING valuePath, std::vector<std::string> *arrayOfStrings)

+{

+    TX_SIZE stringSize = 0;

+    TX_BOOL success;

+    

+    success = (txGetStateValueAsString(hStateBag, valuePath, nullptr, &stringSize)) == TX_RESULT_OK;

+    if (!success)

+    {

+        return TX_FALSE;

+    }

+

+    TX_STRING stringValue = new TX_CHAR[stringSize];

+    success = (txGetStateValueAsString(hStateBag, valuePath, stringValue, &stringSize) == TX_RESULT_OK);

+    if (!success)

+    {

+        delete[] stringValue;

+        return TX_FALSE;

+    }

+    

+    TX_STRING stringPtr = stringValue;

+    while (*stringPtr != '\0')

+    {

+        TX_STRING startPoint = stringPtr;

+        while (*stringPtr != '\0')

+        {

+            stringPtr++;

+        }

+

+        std::string str = std::string(startPoint, stringPtr - startPoint);

+        arrayOfStrings->push_back(str);

+        stringPtr++;

+    }

+

+    return TX_TRUE;

+}

+

+/*

+ * Handles a state-changed notification, or the response from a get-state operation.

+ */

+void OnStateReceived(TX_HANDLE hStateBag)

+{

+	TX_BOOL success;

+    TX_SIZE stringSize = 0;

+    TX_STRING engineVersion;

+    TX_STRING profileName;

+    std::vector<std::string> profiles;

+

+    success = (txGetStateValueAsString(hStateBag, TX_STATEPATH_ENGINEINFOVERSION, NULL, &stringSize) == TX_RESULT_OK);

+    if (success) {

+        engineVersion = (TX_STRING)malloc(stringSize*sizeof(char));

+        if (txGetStateValueAsString(hStateBag, TX_STATEPATH_ENGINEINFOVERSION, engineVersion, &stringSize) == TX_RESULT_OK) {

+            printf("\nEyeX Engine version: %s. This sample requires EyeX Engine %s or higher.\n", engineVersion, MIN_ENGINE_VERSION);

+        }

+        free(engineVersion);

+    }

+

+    success = (txGetStateValueAsString(hStateBag, TX_STATEPATH_EYETRACKINGCURRENTPROFILENAME, NULL, &stringSize) == TX_RESULT_OK);

+    if (success) {

+        profileName = (TX_STRING)malloc(stringSize*sizeof(char));

+        if (txGetStateValueAsString(hStateBag, TX_STATEPATH_EYETRACKINGCURRENTPROFILENAME, profileName, &stringSize) == TX_RESULT_OK) {

+            g_currentProfileName = profileName;

+        }

+        free(profileName);

+    }

+

+    success = GetStateValueAsArrayOfStrings(hStateBag, TX_STATEPATH_EYETRACKINGPROFILES, &profiles);

+    if (success) {

+        g_profiles = profiles;

+    }

+

+    PrintInfo();

+}

+

+/*

+ * Handles engine state change notifications.

+ */

+void TX_CALLCONVENTION OnEngineStateChanged(TX_CONSTHANDLE hAsyncData, TX_USERPARAM userParam)

+{

+	TX_RESULT result = TX_RESULT_UNKNOWN;

+	TX_HANDLE hStateBag = TX_EMPTY_HANDLE;

+

+	if (txGetAsyncDataResultCode(hAsyncData, &result) == TX_RESULT_OK && 

+		txGetAsyncDataContent(hAsyncData, &hStateBag) == TX_RESULT_OK) {

+		OnStateReceived(hStateBag);

+		txReleaseObject(&hStateBag);

+	}

+}

+

+/*

+ * Callback function invoked when the status of the connection to the EyeX Engine has changed.

+ */

+void TX_CALLCONVENTION OnEngineConnectionStateChanged(TX_CONNECTIONSTATE connectionState, TX_USERPARAM userParam)

+{

+	if (connectionState == TX_CONNECTIONSTATE_CONNECTED) {

+		printf("We're now connected to the EyeX Engine!\n");

+		printf("Now that we're connected: get the user profiles...\n\n");

+

+        // the two states below requires EyeX Engine 1.3.0, so check engine version as well

+        txGetStateAsync(g_hContext, TX_STATEPATH_ENGINEINFOVERSION, OnEngineStateChanged, NULL);

+		txGetStateAsync(g_hContext, TX_STATEPATH_EYETRACKINGCURRENTPROFILENAME, OnEngineStateChanged, NULL);

+        txGetStateAsync(g_hContext, TX_STATEPATH_EYETRACKINGPROFILES, OnEngineStateChanged, NULL);

+	}

+}

+

+/*

+ * Callback function invoked when the async call to set current profile is completed.

+ */

+void TX_CALLCONVENTION OnSetCurrentProfileCompleted(TX_CONSTHANDLE hAsyncData, TX_USERPARAM userParam)

+{

+    TX_BOOL success;

+    TX_RESULT result = TX_RESULT_UNKNOWN;

+    success = (txGetAsyncDataResultCode(hAsyncData, &result) == TX_RESULT_OK && result == TX_RESULT_OK);

+    if (success == TX_FALSE) {

+        printf("\nSomething went wrong when trying to change the current profile.\n");

+    }

+}

+

+/*

+ * Change profile to the profile with index profileIndex as listed by the application's PrintInfo function.

+ */

+void ChangeProfileTo(int profileIndex)

+{

+    TX_CONSTSTRING profileName = (TX_CONSTSTRING)g_profiles[profileIndex].c_str();

+    if (profileName == g_currentProfileName) {

+        printf("\nYou selected the current profile. Try again: ");

+    } else {

+        printf("\nChanging user profile to '%s'.\n", profileName);

+        txSetCurrentProfile(g_hContext, profileName, OnSetCurrentProfileCompleted, NULL);

+    }

+}

+

+int _tmain(int argc, _TCHAR* argv[])

+{

+    printf("Press 'q' to quit the application.\n\n");

+

+    TX_TICKET hConnectionStateChangedTicket = TX_INVALID_TICKET;

+    TX_TICKET hCurrentProfileNameChangedTicket = TX_INVALID_TICKET;

+    TX_TICKET hEyeTrackingProfilesChangedTicket = TX_INVALID_TICKET;

+    TX_BOOL success;

+    TX_EYEXAVAILABILITY availability;

+

+    if (txGetEyeXAvailability(&availability) == TX_RESULT_OK) {

+		if (availability == TX_EYEXAVAILABILITY_NOTAVAILABLE) {

+			printf(

+				"This sample requires the EyeX Engine, but it isn't available.\n"

+				"Please install the EyeX Engine and try again.\n");

+			exit(-1);

+		}

+		else if (availability == TX_EYEXAVAILABILITY_NOTRUNNING) {

+			printf(

+				"This sample requires the EyeX Engine, but it isn't running.\n"

+				"Please make sure that the EyeX Engine is started.\n");

+		}

+	}

+

+    // initialize and enable the context that is our link to the EyeX Engine.

+	// register observers on the connection state, current profile name state, and profiles state.

+	success = txInitializeEyeX(TX_EYEXCOMPONENTOVERRIDEFLAG_NONE, NULL, NULL, NULL, NULL) == TX_RESULT_OK;

+	success &= txCreateContext(&g_hContext, TX_FALSE) == TX_RESULT_OK;

+	success &= txRegisterConnectionStateChangedHandler(g_hContext, &hConnectionStateChangedTicket, OnEngineConnectionStateChanged, NULL) == TX_RESULT_OK;

+    success &= txRegisterStateChangedHandler(g_hContext, &hCurrentProfileNameChangedTicket, TX_STATEPATH_EYETRACKINGCURRENTPROFILENAME, OnEngineStateChanged, NULL) == TX_RESULT_OK;

+    success &= txRegisterStateChangedHandler(g_hContext, &hEyeTrackingProfilesChangedTicket, TX_STATEPATH_EYETRACKINGPROFILES, OnEngineStateChanged, NULL) == TX_RESULT_OK;

+    success &= txEnableConnection(g_hContext) == TX_RESULT_OK;

+

+	if (success) {

+		printf("Initialization was successful.\n");

+		printf("We are waiting for a connection to the EyeX Engine...\n\n");

+	} else {

+		printf("Initialization failed.\n\n");

+	}

+

+    // read profile index entered by user, if valid: change profile.

+    // keep reading input until 'q' is read and application should exit.

+    // known limitation: only reads one character, meaning 9 will be the highest 

+    // selectable profile index.

+    auto keepRunning = true;

+    while(keepRunning) {

+	    int input = _getch();

+        char inputChar = input;

+        printf("%c\n", inputChar);

+        int profileIndex = input - '0';

+        if (input == 'q') {

+	        printf("\nExiting.\n");

+            keepRunning = false;

+        } else if (isdigit(input) && ((unsigned int)profileIndex < g_profiles.size())) {

+            ChangeProfileTo(profileIndex);

+        } else {

+            printf("\nIllegal profile index: '%c'. Try again: ", inputChar);

+        }

+    }

+

+    // unregister handlers and delete the context.

+	txUnregisterConnectionStateChangedHandler(g_hContext, hConnectionStateChangedTicket);

+    txUnregisterStateChangedHandler(g_hContext, hCurrentProfileNameChangedTicket);

+    txUnregisterStateChangedHandler(g_hContext, hEyeTrackingProfilesChangedTicket);

+    success = txShutdownContext(g_hContext, TX_CLEANUPTIMEOUT_DEFAULT, TX_FALSE) == TX_RESULT_OK;

+	success &= txReleaseContext(&g_hContext) == TX_RESULT_OK;

+	success &= txUninitializeEyeX() == TX_RESULT_OK;

+	if (!success) {

+		printf("EyeX could not be shut down cleanly. Did you remember to release all handles?\n");

+	}

+

+	return 0;

+}

+

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.vcxproj b/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.vcxproj
new file mode 100755
index 0000000..3481b69
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.vcxproj
@@ -0,0 +1,163 @@
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+    <ClInclude Include="targetver.h" />

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+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

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+</Project>
\ No newline at end of file
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.vcxproj.filters b/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.vcxproj.filters
new file mode 100755
index 0000000..614e5c9
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/MinimalUserProfiles.vcxproj.filters
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup>

+    <Filter Include="Source Files">

+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>

+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>

+    </Filter>

+    <Filter Include="Header Files">

+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>

+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>

+    </Filter>

+    <Filter Include="Resource Files">

+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>

+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>

+    </Filter>

+  </ItemGroup>

+  <ItemGroup>

+    <Text Include="ReadMe.txt" />

+  </ItemGroup>

+  <ItemGroup>

+    <ClInclude Include="stdafx.h">

+      <Filter>Header Files</Filter>

+    </ClInclude>

+    <ClInclude Include="targetver.h">

+      <Filter>Header Files</Filter>

+    </ClInclude>

+  </ItemGroup>

+  <ItemGroup>

+    <ClCompile Include="stdafx.cpp">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="MinimalUserProfiles.cpp">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+  </ItemGroup>

+</Project>
\ No newline at end of file
diff --git a/Tobii EyeX/samples/MinimalUserProfiles/ReadMe.txt b/Tobii EyeX/samples/MinimalUserProfiles/ReadMe.txt
new file mode 100755
index 0000000..4171f7a
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/ReadMe.txt
@@ -0,0 +1,40 @@
+========================================================================

+    CONSOLE APPLICATION : MinimalUserProfiles Project Overview

+========================================================================

+

+AppWizard has created this MinimalUserProfiles application for you.

+

+This file contains a summary of what you will find in each of the files that

+make up your MinimalUserProfiles application.

+

+

+MinimalUserProfiles.vcxproj

+    This is the main project file for VC++ projects generated using an Application Wizard.

+    It contains information about the version of Visual C++ that generated the file, and

+    information about the platforms, configurations, and project features selected with the

+    Application Wizard.

+

+MinimalUserProfiles.vcxproj.filters

+    This is the filters file for VC++ projects generated using an Application Wizard. 

+    It contains information about the association between the files in your project 

+    and the filters. This association is used in the IDE to show grouping of files with

+    similar extensions under a specific node (for e.g. ".cpp" files are associated with the

+    "Source Files" filter).

+

+MinimalUserProfiles.cpp

+    This is the main application source file.

+

+/////////////////////////////////////////////////////////////////////////////

+Other standard files:

+

+StdAfx.h, StdAfx.cpp

+    These files are used to build a precompiled header (PCH) file

+    named MinimalUserProfiles.pch and a precompiled types file named StdAfx.obj.

+

+/////////////////////////////////////////////////////////////////////////////

+Other notes:

+

+AppWizard uses "TODO:" comments to indicate parts of the source code you

+should add to or customize.

+

+/////////////////////////////////////////////////////////////////////////////

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/stdafx.cpp b/Tobii EyeX/samples/MinimalUserProfiles/stdafx.cpp
new file mode 100755
index 0000000..92e931f
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/stdafx.cpp
@@ -0,0 +1,3 @@
+// stdafx.cpp : source file that includes just the standard includes

+

+#include "stdafx.h"

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/stdafx.h b/Tobii EyeX/samples/MinimalUserProfiles/stdafx.h
new file mode 100755
index 0000000..cb987d8
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/stdafx.h
@@ -0,0 +1,13 @@
+// stdafx.h : include file for standard system include files,

+// or project specific include files that are used frequently, but

+// are changed infrequently

+//

+

+#pragma once

+

+#include "targetver.h"

+

+#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers

+

+#include <stdio.h>

+#include <tchar.h>

diff --git a/Tobii EyeX/samples/MinimalUserProfiles/targetver.h b/Tobii EyeX/samples/MinimalUserProfiles/targetver.h
new file mode 100755
index 0000000..90e767b
--- /dev/null
+++ b/Tobii EyeX/samples/MinimalUserProfiles/targetver.h
@@ -0,0 +1,8 @@
+#pragma once

+

+// Including SDKDDKVer.h defines the highest available Windows platform.

+

+// If you wish to build your application for a previous Windows platform, include WinSDKVer.h and

+// set the _WIN32_WINNT macro to the platform you wish to support before including SDKDDKVer.h.

+

+#include <SDKDDKVer.h>