Desktop app update framework
Squirrel is both a set of tools and a library, to completely manage both installation and updating your Desktop Windows application, written in either C# or any other language (i.e., Squirrel can manage native C++ applications).
software protection. focus on Crypto++. search this keyword "crypto++" and will find many good posts. I took note of them here for my own development.
In this article, we describe the driver we created to hide processes and files in a system.
This is a brief tutorial on how to sign a Windows device driver with WDK 7.1
The WDK is used to develop, test, and deploy Windows drivers.
Runtime requirements You can run the Windows 10, version 2004 WDK on Windows 7 and later, and use it to develop drivers for these operating systems:
Step 1: Install Visual Studio 2019 The WDK requires Visual Studio. For more information about system requirements for Visual Studio, see Visual Studio 2019 System Requirements.
To find the latest version of MSVC installed on your system, in Visual Studio Installer go to workload page, on the right pane under installation details, expand Desktop development with C++ and locate the MSVC v142 - VS 2019 C++ x64/x86 build tools (V14.xx) - note where xx should be the highest version available.
With this information (v14.xx), go to Individual components and search for v14.xx. This will return the tool sets for all architectures, including Spectre mitigated libs. Select the driver architecture you are developing for.
this technique can be used to store password in my app.
drawing all kinds of shapes in VC/MFC
very good formular is presented here.
his example demonstrates using the new shared ATL/MFC classes such as CPoint, CRect, CSize and CString
The following table lists the classes shared between MFC and ATL.
We study the problem of computing R cos(a + k b) and R sin(a + k b) for increasing k
Short study of the perspective projection of a rectangle in space; homography opposed to bilinear transform.
my note: it can be used to draw rotated Elliptic.
Some simple examples of how to apply affine transformations in computer graphics.
need to reuse his method on MFC demos.
we can see the formula to rotate an Elliptic...
it includes all kinds of formula of spirals. need to implement them in MFC and take a look their math attributes...
this plotter can draw spiral with formulas!
a good ruler logic
C++ namespace example
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In applications, namespaces can be used to separate application-specific code from code that might be reusable later (e.g. math functions). For example, physical and math functions could go into one namespace (e.g. math::). Language and localization functions in another (e.g. lang::).
When you write a library or code that you want to distribute to others, always place your code inside a namespace. The code your library is used in may not follow best practices -- in such a case, if your library’s declarations aren’t in a namespace, there’s an elevated chance for naming conflicts to occur. As an additional advantage, placing library code inside a namespace also allows the user to see the contents of your library by using their editor’s auto-complete and suggestion feature.
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External Namespaces Sometimes when we have too many namespaces to use in our application, we might want to place all the namespaces in a separate file. This can be easily done. When the namespaces are in the separate file we just include that file in our program and then directly use the namespaces and its contents in our program.
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research on CMultiLock vs CSingleLock class
If the CMultiLock class is used to synchronize on more than eight synchronization objects, a memory leak occurs when using CEvent, CSemaphore, or CMutex as the synchronization objects. The size of the leak equals the number of synchronization objects used multiplied by the memory needed for a BOOL variable.
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug was corrected in Visual C++ 32- bit Edition version 4.2.
This article explains how to create your own simple Lock Framework for C++ synchronization.
lock framework is good to use
research on QuantLib
Slide section has these slides: Dimitri Reiswich contributed the slides he used during a course he taught, along with the corresponding code:
1. Boost introduction [PDF] 2. QuantLib introduction, part I [PDF] 3. QuantLib introduction, part II [PDF] 4. code samples [ZIP]
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 .
Use advanced techniques to provide a high performance, concurrent, typesafe API around a non-threadsafe typeless one
BOOST library user guide and tips
research on "deadlock" on cp.com and find many good post. so collected here for my future reference.
a good example to test
static LPTSTR pstrExtensionList[] = { _T(""), _T(".com"), _T(".exe"), _T(".bat"), _T(".cmd"), NULL, };
When I compiled this piece of code, I got this error:
Error C2440 'initializing': cannot convert from 'const char [1]' to 'LPTSTR'
when I compiled a legacy project SPAWNER from revo MFC book, I got this error
C2440 '=': cannot convert from 'const char [24]' to 'PVOID' SPAWNERX c:\demo_revo\spawnerx\spawnerx\spawndlg.cpp
I cast this type directly to (PVOID)
'Conversion' : cannot convert from 'type1' to 'type2' The compiler cannot cast from type1 to type2. C2440 can be caused if you attempt to initialize a non-const char* (or wchar_t*) by using a string literal in C++ code, when the compiler conformance option /Zc:strictStrings is set. In C, the type of a string literal is array of char, but in C++, it is array of const char.
when I compiled old MTPRINTX demo from Revo MFC book, I got the following error messages:
Error C4996 'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. MTPRINTX c:\demo_revo\mtprintx\mtprintx\hexvivw.cpp 38
I searched internet, stackoverflow.com has some good posts:
a good solution:
If you are on visual studio version >= 2005 and want to fix these warnings in a proper way... easiest method is to #define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES 1 and #define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_COUNT 1 in your project.
Many CRT functions have been deprecated in favor of newer, security-enhanced versions (for example, strcpy_s is the more secure replacement for strcpy). The CRT provides template overloads to help ease the transition to the more secure variants.
I tested: but it would be a good idea to add _CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions) as to inherit predefined definitions IMHO & for the most part this is a good approach.
need to use this kind of ini file to store app attributes for my MFC applications.
two key words: .ini file or ini file on cp.com
In this article, we describe the driver we created to hide processes and files in a system.
This article is the continue of the previously posted article Hide Driver. Some methods to detect hidden files and processes are described in it.
Minimize your application to system tray instead of the taskbar
Search and Replace in multiple files Add-in for Visual C++ 6.0
how to use app manifest file
CString and CRect types will be heavily used in my graphic apps.
This topic explains how to configure your application to ensure that common controls are displayed in the user's preferred visual style.
Problems I encountered when polishing the GUI of an existing 200K LOC application.
Header files: BaseTsd.h; WinDef.h;WinNT.h
CStrings are a useful data type. They greatly simplify a lot of operations in MFC, making it much more convenient to do string manipulation. However, there are some special techniques to using CStrings, particularly hard for people coming from a pure-C background to learn. This essay discusses some of these techniques.
Similar to a Windows RECT structure.
Similar to the Windows POINT structure.
Header: atltypes.h
Header windef.h (include Windows.h)
Header file: windef.h (include Windows.h)
Similar to the Windows SIZE structure, which implements a relative coordinate or position.
The SIZE structure defines the width and height of a rectangle.
Header file: windef.h (include Windows.h)
windows.h is a Windows-specific header file for the C and C++ programming languages which contains declarations for all of the functions in the Windows API, all the common macros used by Windows programmers, and all the data types used by the various functions and subsystems. It defines a very large number of Windows specific functions that can be used in C. The Win32 API can be added to a C programming project by including the
production build techniques
A wrapper class for path strings based on (and improving) the Shell Lightweight utility API.
how to add scroll bar on CFrameWnd is easy, but how to make it scroll is not easy. I need to code some functions.
MFC chart research. search "MFC chart" on cp.com
research "thread" on cp.com. reserched to page 12, but skipped from 1 to 4. need to recheck 1-4.
knowledge to get system information
test this program and got error messages.
Error C2440 'initializing': cannot convert from 'const wchar_t [18]' to 'TCHAR *' SystemInfo2
it has most recent OS parameters needed in Hans's post.
The following functions can be used to determine the current operating system version or identify whether it is a Windows or Windows Server release. These functions provide simple tests that use the VerifyVersionInfo function and the recommended greater than or equal to comparisons that are proven as a robust means to determine the operating system version.
The following example shows an app manifest file for an app that supports all versions of Windows from Windows Vista to Windows 10:
this is good post to summarize all kinds of system OS version information.
This article explains how to determine Windows version and edition. The method is very simple: The Windows API provides two functions, GetVersion/GetVersionEx, that fill the structure OSVERSIONINFO/OSVERSIONINFOEX with information such as major and minor version, product type, suite mask, platform, and so forth. This article, however, and the code provided here, does not list all the operating systems ever released by Microsoft, only the most usual ones.
This tool will spy on COM registration process and create side by side (SxS) manifest file(s)
need to download source code and play around with it.
This project is an attempt to create a utility or tool application that will display all the system information like CPU, OS, Multimedia, etc. The idea behind this application is no different than the one implemented in most of Microsoft’s System Info utility in Office products. But my application takes couple of steps more and displays more info than the available utilities. In this version (V1) of application, following information is displayed.
the above two posts give me enough techniques to develop my tool to get system information.
The Version API Helper functions are used to determine the version of the operating system that is currently running. For more information, see Getting the System Version.
This tool will spy on COM registration process and create side by side (SxS) manifest file(s)
need to download source code and play around with it.
A small class for using COM DLL modules without registering them
other way to avoid registering COM DLL, is to define them on the manifest: see detailled explantion: regsvr42: Generate SxS Manifest Files from Native DLLs for Registration-Free COM[^]
