turn right thoughts into products: October 2020

Important: If you want to compile FFTW as a DLL, you should add a line #define FFTW_DLL to fftw3.h and ifftw.h before compiling. This will add the requisite __declspec decorations to function declarations etc.

Project files to compile FFTW 3.3 with Visual Studio 2010 were sent to us by Long To: fftw-3.3-libs-visual-studio-2010.zip.

Downloading FFTW
Dd1vanov / Simple-FFT
C++ Tutorial: Computing the 1-D FFT using the FFTW library on Ubuntu/Linux
C++ Tutorial: 1-D FFT and IFFT with the FFTW library and Visual Studio on Windows
C++ Tutorial: Writing an fftShift function for the FFTW library
FFT properties demonstration
But what is the Fourier Transform? A visual introduction.
Intuitive Understanding of the Fourier Transform and FFTs
Fourier Transform, Fourier Series, and frequency spectrum
FFT Tutorial
iscrete Fourier Transform - Simple Step by Step
The FFT Algorithm - Simple Step by Step

Saturday, October 24, 2020

std::cerr vs std::clog

I/O Redirection in C++
C++ Basic Input/Output
What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
std::cerr, std::wcerr
C++ cerr

The cerr object in C++ is an object of class ostream. It is associated with the standard C error output stream stderr.

std::cerr | Error Stream Object in C++ with Examples
What is C++ Standard Error Stream (cerr)?
C++ Basic Input/Output: Cout, Cin, Cerr Example
Write std::cerr to txt file

#pragma directive in C++

Compiler Warning (level 1) C4068

unknown pragma

The compiler ignored an unrecognized pragma. Be sure the pragma is allowed by the compiler you are using. The following sample generates C4068:

#pragma
Use of #pragma in C

It is of two types #pragma startup, #pragma exit and #pragma warn.

#pragma startup allows us to specify functions called upon program startup.

#pragma exit allows us to specify functions called upon program exit.

#pragma warn tells the computer to suppress any warning or not.

C/C++ #include directive with Examples
#pragma Directive in C/C++
Draw an ellipse divided by straight line into two colored part in C++ Graphics
Speed up Code executions with help of Pragma in C/C++
Pragma directives and the __pragma keyword
cin get() in C++ with Examples

cin.get() is used for accessing character array. It includes white space characters. Generally, cin with an extraction operator (>>) terminates when whitespace is found. However, cin.get() reads a string with the whitespace.

Cin-Cout vs Scanf-Printf
How to use getline() in C++ when there are blank lines in input?
Difference between cin and cin.get() for char array

statistics and numerical recipe in C++

C++ programs for Finance

I have made some programs for common uses in finance. They may be of interest to others, so I have made them public under the GNU Public Licence .

C++ Financial Algoritms (Financial Numerical Recipes)

In finance, there are areas where formulas tend to get involved. Sometimes it may be easier to follow an exact computer routine. I have made some C++ subroutines that implements common algoritms in finance. Typical examples are option/derivatives pricing, term structure calculations, mean variance analysis. These routines are presented together with a good deal of explanations and examples of use, but it is by no means a complete "book" with all the answers and explanations. I'm hoping to turn it into a book, but even in its incomplete state is should provide a good deal of useful algorithms for people working within the field of finance. The manuscript and codes will be added to as I get the time. All the code should conform to the current ANSI C++ standard.

siren0413 / OptionPricingFormular_CD
Robert Davies
Matrix Documentation
A User-Friendly C# Descriptive Statistic Class

plan to convert it to C++. a good exercise, adding GUI is another option with MFC chart.

Numerical Recipes Home Page
Mathemathics Framework
Inner Product Experiment: C# vs. C/C++

Wednesday, October 21, 2020

Can't find System.Windows.Vector in C#

Can't find System.Windows.Vector in C#

C# Couldn't process file xxx.resx due to its being in the Internet or Restricted zone or having the mark of the web on the file

Matrix class in C/C++ and other operations

matrix class implementation in C/C++

Matrix Library in C

in comment section, there is one good comment from Danelle in Italy on how to free memory.

QR decomposition

it has implementation in C++, new Matrix class.

A C++ Matrix Class
MathLibrary for Matrix and Vector
Solve Linear and Polynomial Equations
A matrix class with serialization and advanced input/output functions

BOOK:: C Interfaces and Implementations

BOOK:: C Interfaces and Implementations
drh/cii

This hierarchy contains all the source code from my book "C Interfaces and Implementations: Techniques for Creating Reusable Software (Addison-Wesley Professional Computing Series, 1997, ISBN 0-201-49841-3).
For installation instructions, see install.html.

google download site
Recommended Books
Articles by john morrison leon (Articles: 10)

MFC tricks related with matrix

An examination of menus from a beginner's point of view
Scrollbars, using the WS_HSCROLL and WS_VSCROLL styles
MFC Document/View documentation and enhancements
Getting BN_DOUBLECLICK to Work for Buttons
Space and Matrix Transformations - Building a 3D Engine
Least Squares: A Matrix Approach in Java
Applying Matrix Transformations in GDI+
C++ Include test: full matrix
Top 5 Beautiful C++ std Algorithms Examples
Debug/Release Numerical Differences
x86/x64 Library Numerical differences
64-bit programs and floating-point calculations
Accelerating Debug Runs, Part 1: _NO_DEBUG_HEAP
Visual Studio Slow Debugging and _NO_DEBUG_HEAP
Smart Pointers Gotchas
Learning Basic Math Used In 3D Graphics Engines

Tuesday, October 20, 2020

LNK4075 ignoring '/EDITANDCONTINUE' due to '/SAFESEH' specification

good posts with personal thoughts and understanding

LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specification
How to fix Visual Studio C++ Warning: LINK4075
Supported Code Changes (C++)
Supported Code Changes and Limitations (C++)

LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specification

42 You can either have "Edit and continue" support or optimizations. Usually, you put "Edit and continue" on debug builds, and optimizations on release builds. Edit and continue allows you to change code while you are debugging and just keep the program running. It's not supported if the code also has to be optimized.

/SAFESEH disables Edit and Continue? RRS feed

It's a documentation bug, I annotated the MSDN article. It makes sense, /SAFESEH generates stack unwinding info in a table rather than using the stack. That's incompatible with Edit+Continue's need to move code around into empty spots of the image, it's not smart enough to update the table.

The workaround is simple, /SAFESEH makes no sense in the debug build. Only use that linker option in the Release build.

Like Hans Passant pointed out, the option to turn SAFESEH off is project properties >> Configuration Properties >> Linker >> Advanced. The last option there 'Image Has Safe Exception handlers'

Warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/SAFESEH' specification
#visual studio compilation # warning LNK4075: ignoring '/ EDITANDCONTINUE' due to '/ SAFESEH' specification

Warning D9035 option 'Gm' has been deprecated and will be removed in a future release LargeNumber

whewn I compile a legacy project and ran into this warning:

Warning D9035 option 'Gm' has been deprecated and will be removed in a future release LargeNumber

Command line warning D9035: option 'Gm' has been deprecated and will be removed in a future release

Try selecting for the Enable Minimal Rebuild option (under C/C++ > Code Generation). After this, the option should show No (/Gm-), not in bold. Make sure you do this for your project(s) (you could have several projects in the solution), and all property pages they inherit from.

I had the same problem using Visual Studio 2019, in the end the problem was in a second project I had in the same solution, that had the option set to Yes (/Gm).

Monday, October 19, 2020

copy constructor and move semantics in C++

How to convert a std::string to const char* or char*?

print hex code of char or string in C++

ASCII Text to Hex Code Converter

you can type a string and see the text code in hex quickly.

ASCII Table and Description
how do I print an unsigned char as hex in c++ using ostream?

it has a good program to do this. need to use it in future..

Formatting Cout Output in C++ using iomanip
How to print unsigned char[] as HEX in C++?
Display char as Hexadecimal String in C++
Print unsigned char array in c
Working with Hexadecimal values in C programming language
StringStream in C++ for Decimal to Hexadecimal and back
C++ - Working with characters and text

C++ serialization research

Saturday, October 17, 2020

Fibo basics

Fibo basics. google: "fibonacci phi"

muParser, mathematical parser technique

size of class or object in C++

Size of C++ classes
how to determine sizeof class with virtual functions?
Determining the Size of a Class Object
Object
sizeof operator
Why is the size of an empty class not zero in C++?
How do I calculate size of a simple class in C++?
Size of a C++ class object
Size of a class in C++ | Padding, alignment in class | Size of derived class

Firstly, while in C++ there are member functions, static data members. Do those have any contribution to the size of the class, objects?

The answer is no. Only the non-static data members contribute to the size of class and objects. This is because static members have only one instance which is shared among all objects. And normal member functions are like executable code which does not have size like data members.

Friday, October 16, 2020

deep understanding of OOP concepts and __CPUID macro

deep understanding of OOP concepts and __CPUID macro. from a nerd:)

__cpuid, __cpuidex
djkaty / Il2CppInspector
C++ Explained: Object initialization and assignment, lvalues and rvalues, copy and move semantics and the copy-and-swap idiom
How to determine programmatically whether your application and OS are 32 or 64-bit
Printing numbers in binary format in C++

While a looping solution still has applicability in some other languages, there is a much more elegant way to do it in C++ that is often overlooked:
int v = 0x12345678; std::cout << std::bitset<32>(v);

#include header file : bitset

How to determine programmatically if your processor has hyperthreading, SIMD and other processing capabilities with __cpuid
Tutorial: How To Fix WMI Corruption
Visual Studio 2012 – Day 1 Annoyances (with an emphasis on C++)
C++ Class Hierarchies Crash Course: Derivation (“is-a”) vs Composition (“has-a”), and Is a Square a Rectangle?
C++ Class Hierarchies Crash Course: Derivation (“is-a”) vs Composition (“has-a”), and Is a Square a Rectangle?

mathematics related topics

keyword: squar root in cp.com

Drawing a Line Graph in GDI+

very good transformation way...

Thursday, October 15, 2020

basic data type of C++

Print character through ASCII value using cout in C++
4.11 — Chars
“C++ int to char*” Code Answer
4.12 — Literals
std::dec, std::hex, std::oct
std::oct , std::dec and std::hex in C++
C++ cout hex values?
Input/output manipulators
String literals
Integer literals

Floating point literal

suffix, if present, is one of f, F, l, or L. The suffix determines the type of the floating-point literal:
(no suffix) defines double
f F defines float
l L defines long double

Types of Literals in C/C++ with Examples
What's the C++ suffix for long double literals?
C - Constants and Literals
C Floating-Point Constants
Floating-point literals
C library function - strlen()
C++ Standard Library headers

Fundamental types
Built-in types (C++)

Built-in types (also called fundamental types) are specified by the C++ language standard and are built into the compiler. Built-in types aren't defined in any header file. Built-in types are divided into three main categories: integral, floating-point, and void. Integral types represent whole numbers. Floating-point types can specify values that may have fractional parts. Most built-in types are treated as distinct types by the compiler. However, some types are synonyms, or treated as equivalent types by the compiler.

Void type
The void type describes an empty set of values. No variable of type void can be specified. The void type is used primarily to declare functions that return no values or to declare generic pointers to untyped or arbitrarily typed data. Any expression can be explicitly converted or cast to type void. However, such expressions are restricted to the following uses:

An expression statement. (For more information, see Expressions.)
The left operand of the comma operator. (For more information, see Comma Operator.)
The second or third operand of the conditional operator (? :). (For more information, see Expressions with the Conditional Operator.)

Comma Operator: ,
Sequential-Evaluation Operator
Conditional Operator: ? :
ODULE 2 C AND C++ PROGRAM CONSTRUCT AND BASIC DATA TYPES 1
MODULE 2_1 C AND C++ CONSTRUCTS AND BASIC DATA TYPES 2
MODULE 2a MORE ON C/C++ CONSTRUCTS AND BASIC DATA TYPES 3
MODULE 2b FINAL PART C/C++ CONSTRUCTS AND BASIC DATA TYPES 4
How to enter the value of EOF in the terminal
C LAB WORKSHEET 6 C scanf(), scanf_s() family 1
C LAB WORKSHEET 6_1 C scanf(), scanf_s() Examples & Exercises 2
C LAB WORKSHEET 6_2 C scanf(), scanf_s() Exercises 3
C LAB WORKSHEET 5_2 C/C++ Variable, Operator And Type 3
C LAB WORKSHEET 5_1 C/C++ Variable, Operator And Type 2
C LAB WORKSHEET 5 C/C++ Variable, Operator And Type 1

Wednesday, October 14, 2020

C++ operator precedence table

C++ Operator Precedence and Associativity

Also, multiple operators can have the same level of precedence (as we can see from the above table). When multiple operators of the same precedence level are used in an expression, they are evaluated according to their associativity.

int a = 1;
int b = 4;
b += a -= 6;

Operators Precedence in C++
C++ Operator Precedence
Explicit type conversion
Increment/decrement operators
C Operator Precedence
C++ built-in operators, precedence, and associativity
C++ Operator Precedence
C/C++ Reference
C++ Operator Precedence
cpp-built-in-operators-precedence-and-associativity.md
C Operator Precedence Table :: PDF
Operators in C and C++:: Wikipedia

Table
For the purposes of these tables, a, b, and c represent valid values (literals, values from variables, or return value), object names, or lvalues, as appropriate. R, S and T stand for any type(s), and K for a class type or enumerated type.

Operators Precedence in C++
Operator Precedence and Associativity in C

Operator precedence determines which operator is performed first in an expression with more than one operators with different precedence.

C++ Operator Precedence

IBM knowledge

Operator precedence and associativity::IBM
Examples of expressions and precedence
Compound literal expressions
new expressions (C++ only)
delete expressions (C++ only)
Reference collapsing (C++11)
5.1 — Operator precedence and associativity
2.1 Operators and Operands
C++ Operator Precedence
C++ Operator Precedence Chart (highest on top)

Tuesday, October 13, 2020

how to configure : _cplusplus macro variables in Visual Studio 2017

_cplusplus macro in Visual Studio 2017. how to use it?

Predefined macros

The Microsoft C/C++ compiler (MSVC) predefines certain preprocessor macros, depending on the language (C or C++), the compilation target, and the chosen compiler options.

MSVC supports the predefined preprocessor macros required by the ANSI/ISO C99, C11, and C17 standards, and the ISO C++14 and C++17 standards. The implementation also supports several more Microsoft-specific preprocessor macros. Some macros are defined only for specific build environments or compiler options. Except where noted, the macros are defined throughout a translation unit as if they were specified as /D compiler option arguments. When defined, the macros are expanded to the specified values by the preprocessor before compilation. The predefined macros take no arguments and can't be redefined.

/Zc (Conformance)

You can use the /Zc compiler options to specify standard or Microsoft-specific compiler behavior.

Syntax /Zc:option{,option}

/permissive- (Standards conformance)

Specify standards conformance mode to the compiler. Use this option to help you identify and fix conformance issues in your code, to make it both more correct and more portable.

To set this compiler option in the Visual Studio development environment

In Visual Studio 2017 version 15.5 and later versions, use this procedure:
Open your project's Property Pages dialog box. Select the Configuration Properties > C/C++ > Language property page. Change the Conformance mode property value to Yes (/permissive-). Choose OK or Apply to save your changes.

In versions before Visual Studio 2017 version 15.5, use this procedure:
Open your project's Property Pages dialog box. Select the Configuration Properties > C/C++ > Command Line property page. Enter the /permissive- compiler option in the Additional Options box. Choose OK or Apply to save your changes.

/Zc:__cplusplus (Enable updated __cplusplus macro)

The /Zc:__cplusplus compiler option enables the __cplusplus preprocessor macro to report an updated value for recent C++ language standards support. By default, Visual Studio always returns the value "199711L" for the __cplusplus preprocessor macro.

Syntax /Zc:__cplusplus[-]

/std (Specify Language Standard Version)

Enable supported C and C++ language features from the specified version of the C or C++ language standard.

Syntax /std:c++14
/std:c++17
/std:c++latest
/std:c11
/std:c17

By default, when code is compiled as C, the MSVC compiler doesn't conform to a particular C standard. It implements ANSI C89 with several Microsoft extensions, some of which are part of ISO C99. Some Microsoft extensions can be disabled by using the /Za compiler option, but others remain in effect. It isn't possible to specify strict C89 conformance.

Starting in Visual Studio 2019 version 16.8, you may specify /std:c11 or /std:c17 for code compiled as C. These options specify conformance modes that correspond with ISO C11 and ISO C17. Because the new preprocessor is needed to support these standards, the /std:c11 and /std:c17 compiler options set the /Zc:preprocessor option automatically. If you want to use the traditional (legacy) preprocessor for C11 or C17, you must set the /Zc:preprocessor- compiler option explicitly. Setting the /Zc:preprocessor- option may lead to unexpected behavior, and isn't recommended.

Since C17 is largely a bug fix release of ISO C11, MSVC support for C11 already includes all the relevant defect reports. At present, there are no differences between the C11 and C17 versions except for the __STDC_VERSION__ macro. It expands to 201112L for C11, and 201710L for C17.

To set this compiler option in the Visual Studio development environment

Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.
Select Configuration Properties, C/C++, Language.
In C++ Language Standard (or for C, C Language Standard), choose the language standard to support from the dropdown control, then choose OK or Apply to save your changes.

Microsoft C++ language conformance table
Mouse and KeyBoard Hooking utility with VC++

it has good code snippet:

6 #ifdef __cplusplus
7 extern "C" {
8 #endif // __cplusplus
9 #define LIBSPEC __declspec(dllexport
11 LIBSPEC BOOL InstallKeyBoardHook(HWND hWndParent);
12 LIBSPEC BOOL UnInstallKeyBoardHook(HWND hWndParent);
13 #undef LIBSPEC
14 15 #define UWM_KEYBOARD_MSG ("UWM_KEYBOARD_USER_MSG")
16 #ifdef __cplusplus
17 }
18 #endif // __cplusplus

/Zp (Struct Member Alignment)

Controls how the members of a structure are packed into memory and specifies the same packing for all structures in a module.

Syntax
/Zp[1|2|4|8|16]

Linker options
Some Handy Visual C++ Pre-Processor Macros
The Lost Art of Structure Packing
Objects and alignment

Monday, October 12, 2020

C++ tips and C++ exit() function

C++ exit() function

Partial C/C++ Function List
decoding * and inc/dec operator combos like *++p , *p-- ,etc
C and C++ Programming Tips
exit()

Prototype: void exit(int ExitCode);
Header File: stdlib.h (C) or cstdlib (C++)
Explanation: Exit ends the program. The ExitCode is returned to the operating system, similar to returning a value to int main.

Partial C/C++ Function List

A note about C vs. C++ Note that header files from the C standard library should have the form headername.h when used in a C program, and the form cheadername when used in C++ programs (note the c as a prefix). For instance, in a C program the stdlib header file would be included as follows

tips and tricks on MFC controls

Application Information and Management

When you write an application, you create a single CWinApp-derived object. At times, you may want to get information about this object from outside the CWinApp-derived object. Or you may need access to other global "manager" objects.

The Microsoft Foundation Class Library provides the following global functions to help you accomplish these tasks:

icrosoft Visual C++/ MFC
The Values of a Windows Control
Lines
GDI Topics: Polylines
GDI Topics: Polygons
GDI Topics: Rectangles
Bézier Curves
The GDI Coordinate Systems
Wizard Pages

Saturday, October 10, 2020

Error C2664 'Employee::Employee(const Employee &)': cannot convert argument 1 from 'const char [4]' to 'char *'

used function_name(char*,char*) to define strings. later on in main(), assign them with literals such as "Bob", "Robert" , then get this error.

Error C2664 'Employee::Employee(const Employee &)': cannot convert argument 1 from 'const char [4]' to 'char *'

C++ cannot convert parameter 1 from 'const char *' to 'char *'
Cannot convert argument 1 from 'const wchar_t [16]' to 'LPTSTR'
error C2664 cannot convert argument 1 from 'const char [11]' to 'LPSTR'

You have some options:

Disable Conformance Mode (easiest) : tested
Cast to a char* : tested
Define as non const: ?
Make function take const arguments : tested such as const char*...

Compiler Error C2664

it has many good examples and need to browse when got time...

If a temporary object is passed to a function that takes a reference to an object as a parameter, that reference must be a const reference.

If the function is passed a parameter that is not of the type that the function expects, a temporary object is created by using the appropriate constructor. This temporary object is then passed to the function. In this case, the temporary object is used to initialize the reference. In earlier versions of the language, all references could be initialized by temporary objects.

To fix C2664, 1. Recheck the prototype for the given function and correct the argument noted in the error message. 2. Supply an explicit conversion if necessary.

QuantLib research topics

Friday, October 9, 2020

mathematical exercises

Tuesday, October 6, 2020

const function in C++

const keyword after function header..

Initializers
extern (C++):: microsoft

take a look:)

8.10 — Const class objects and member functions
Const member functions in C++

Like member functions and member function arguments, the objects of a class can also be declared as const. an object declared as const cannot be modified and hence, can invoke only const member functions as these functions ensure not to modify the object.

A const object can be created by prefixing the const keyword to the object declaration. Any attempt to change the data member of const objects results in a compile-time error.

Syntax: const Class_Name Object_name;

When a function is declared as const, it can be called on any type of object, const object as well as non-const objects.
Whenever an object is declared as const, it needs to be initialized at the time of declaration. however, the object initialization while declaring is possible only with the help of constructors.

A function becomes const when the const keyword is used in the function’s declaration. The idea of const functions is not to allow them to modify the object on which they are called. It is recommended the practice to make as many functions const as possible so that accidental changes to objects are avoided.

const (C++)

const member functions Declaring a member function with the const keyword specifies that the function is a "read-only" function that does not modify the object for which it is called. A constant member function cannot modify any non-static data members or call any member functions that aren't constant.To declare a constant member function, place the const keyword after the closing parenthesis of the argument list.

The const keyword is required in both the declaration and the definition.

Const member functions in C++ :: already tested

The const member functions are the functions which are declared as constant in the program. The object called by these functions cannot be modified. It is recommended to use const keyword so that accidental changes to object are avoided.

A const member function can be called by any type of object. Non-const functions can be called by non-const objects only.

Meaning of 'const' last in a function declaration of a class?
What is meant with “const” at end of function declaration? [duplicate]
const (computer programming)
The C++ 'const' Declaration: Why & How
8.9 — Class code and header files
8.8 — The hidden “this” pointer
8.7 — Destructors
8.6 — Overlapping and delegating constructors
Const Correctness
C++ keywords: const

Warning :: LNK4075 ignoring '/EDITANDCONTINUE' due to '/SAFESEH' specification

another warning message when I compile legacy project:

Warning LNK4075 ignoring '/EDITANDCONTINUE' due to '/SAFESEH' specification

Warning D9035 option 'Gm' has been deprecated and will be removed in a future release

when I compile a legacy project in VC++ 2017, I ran into this message and take note here:

Warning D9035 option 'Gm' has been deprecated and will be removed in a future release

Command line warning D9035: option 'Gm' has been deprecated and will be removed in a future release

Try selecting for the Enable Minimal Rebuild option (under C/C++ > Code Generation). After this, the option should show No (/Gm-), not in bold. Make sure you do this for your project(s) (you could have several projects in the solution), and all property pages they inherit from.

I had the same problem using Visual Studio 2019, in the end the problem was in a second project I had in the same solution, that had the option set to Yes (/Gm).

/Gm (Enable Minimal Rebuild)

Deprecated. Enables minimal rebuild, which determines whether C++ source files that include changed C++ class definitions (stored in header (.h) files) need to be recompiled.

/Gm is deprecated. It may not trigger a build for certain kinds of header file changes. You may safely remove this option from your projects. To improve build times, we recommend you use precompiled headers and incremental and parallel build options instead. For a list of deprecated compiler options, see the Deprecated and Removed Compiler Options section in Compiler Options Listed by Category.

Monday, October 5, 2020

big guys' paper list --- floppy disk tricks

big guys' paper list

Visual Studio version and discrimination macros

check .NET framework versions

.NET Framework Checker

research on UUID topics

ater got these UUIDs, then need to come up with a key to protect my software..

Machine Finger Print - The Right and Efficient Way

Protecting your work - use the right way to identify your client machine

How to Get the BIOS UUID

Get a unique identifier for a computer The BIOS UUID is a unique number tied to the motherboard and if you changed your motherboard, you can safely say you changed your computer. From my point of view, it is a better method of identifying your hardware and, as I'll show you in this tip, it is very easy to implement.

Creating a Unique String Using a UUID

A small function to either accept or create a UUID* and return a CString

You will have to #include rpcdce.h into your code and link rpcrt4.lib into your program in order for this to work. If you don't have either of these files, download the latest *release* version of the Platform SDK. I've taken the liberty of showing you the contents of the two files I created to make it a little simpler. If you create a CPP and an H file, and then copy/paste these two sections into the approriate files, you won't have to do anything other than adding the files to your project (and installing the SDK of course), and then doing a build.

Developing RPC Windows Applications
How to solve Link Error on call to ::UuidToString()?
Compiler cannot find .lib file
rpc.h linking issue

When you want to use the functions included in rpc.h, you can use two ways like as follows:

1. Click Project -> Properties -> Linker -> General -> Additional Library Directories, add the directorie of Rpcrt4.lib to this box, the Rpcrt4.lib always locate in the path: %Program Files%\Microsoft SDKs\Windows\v6.0A\Lib; and then, add Rpcrt4.lib to Linker-> Input ->Additional Dependences. In your program, just use "#include ".

2. Just use the following code in your program: #include #pragma comment(lib, "Rpcrt4.lib") The two above methods both work fine.

on my laptop, it is located at :C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Lib

Create a Windows Service Application Using the Boost.Application Library
Searching for a Reliable Hardware ID
Searching for a Reliable Hardware ID
denisbrodbeck / machineid

machineid provides support for reading the unique machine id of most host OS's (without admin privileges)

1. Cross-Platform (tested on Win7+, Debian 8+, Ubuntu 14.04+, OS X 10.6+, FreeBSD 11+) 2. No admin privileges required 3. Hardware independent (no usage of MAC, BIOS or CPU — those are too unreliable, especially in a VM environment) 4. IDs are unique1 to the installed OS

Function: ID() (string, error) Returns original machine id as a string.

Function: ProtectedID(appID string) (string, error) Returns hashed version of the machine ID as a string. The hash is generated in a cryptographically secure way, using a fixed, application-specific key (calculates HMAC-SHA256 of the app ID, keyed by the machine ID).

What you get This package returns the OS native machine UUID/GUID, which the OS uses for internal needs. All machine IDs are usually generated during system installation and stay constant for all subsequent boots. The following sources are used:

Windows uses the MachineGuid from HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography

Unique Key Reliability Do note, that machine-id and MachineGuid can be changed by root/admin, although that may not come without cost (broken system services and more). Most IDs won't be regenerated by the OS, when you clone/image/restore a particular OS installation. This is a well known issue with cloned windows installs (not using the official sysprep tools).

A machine ID uniquely identifies the host. Therefore it should be considered "confidential", and must not be exposed in untrusted environments. If you need a stable unique identifier for your app, do not use the machine ID directly.

A reliable solution is to hash the machine ID in a cryptographically secure way, using a fixed, application-specific key.

That way the ID will be properly unique, and derived in a constant way from the machine ID but there will be no way to retrieve the original machine ID from the application-specific one.

On Windows: reg query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v MachineGuid
or

Open Windows Registry via regedit Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography Take value of key MachineGuid

The Best Way To Uniquely Identify A Windows Machine

wmic csproduct get UUID

The Best Way To Uniquely Identify A Windows Machine

wmic bios get name,serialnumber,version

wmic cpu get name,CurrentClockSpeed,MaxClockSpeed

wmic cpu get name,CurrentClockSpeed,MaxClockSpeed /every:1

How to uniquely identify windows machine

get-wmiobject Win32_ComputerSystemProduct | Select-Object -ExpandProperty UUID

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