A method is idempotent when the same input(s) always return the same output. This method is idempotent: This method is not idempotent: When adding methods to classes, many developers spend little time deciding if the method should be idempotent. Making use of the properties in the class causes the

Button behavior - single button multiple behaviour

by Software_Developer

You can use one single button for more than one behaviour.Here is how.If you have the coordinates of a point in device coordinates and want to find the corresponding position in logcal view - use CDC::DPtoLP to convert the device coordinates to logcal coordinates.Call on...

C++ / MFC ProgressBar with Percentage Overlay

by zdanman

Fully Customizable ProgressBar Control with Percentage shown that changes color as progress covers it

C++: Converting an MFC CString to a std::string

by CalicoSkies

C++: Converting an MFC CString to a std::string

by jean Davy

As you use CString, you have access to the CW2A ATL macro, assuming that you work with _UNICODE defined, here it is:CString theCStr;...std::string STDStr( CW2A( theCStr.GetString() ) );which will convert to "system encoding on the user's machine" (thanks Nemanja[^] comment !), if you...

C++: Converting an MFC CString to a std::string

by oleg63

CString m_Name;CT2CA pszName(m_Name);std::string m_NameStd(pszName);Works for me everywhere... :)

C++: Converting an MFC CString to a std::string

by steveb

In UNICODE:CString str = L"Test";std::wstring ws(str);std::string s;s.assign(ws.begin(), ws.end());

C++: Converting an MFC CString to a std::string

by Kaqkk79

How about this (assuming your project is set to Unicode)?CString strMyString=L"Test string";std::string strMyStdAnsiStr = CStringA(strMyString);

C++: Converting an MFC CString to a std::string

by geoyar

I am using CString str(_T("Test"));typedef std::basic_string string_t;string_t resStr(str);It works because the CSting has a cast to LPTCSTR.

C++: Converting an MFC CString to a std::string

by stonexin

LPSTR WideChar2MBCS( const CString& strCS ){ const UINT wLen = strCS.GetLength() + 1; UINT aLen = WideCharToMultiByte(CP_ACP,0,strCS,wLen,NULL,0,NULL,NULL); LPSTR lpa = new char[aLen]; WideCharToMultiByte(CP_ACP,0,strCS,wLen,lpa,aLen,NULL,NULL); return...

Calendar Days Between Date/Time Pairs

by David Wincelberg

Displays a date/time difference as calendar days or 24-hour days and can show hours or minutes for the first 24 hours

CAsyncsocket and Console with MFC / TCP

by Christian Koberg

How to use CAsyncSocket in a console application? Is it possible at all?

CComboBox with CheckBox like an Item

by Eddie Nambulus

CheckBox as an item in CComboBox

CDatabaseExt - A Simple Way to Connect to a Database and Retrieve Data

by _Flaviu

A class designed to connect to a database through ODBC and perform basic operations such as inserts, updates, and deletes

CEdit - Show or Hide Password

by JPhelps

To dynamically set the password viewing style for the edit control

CFileDialog in a Console Application

by Roger65

CFileDialog in a Console Application

Change GUI control position with dialog re-size

by Binu MD

Change GUI control position with dialog re-size

Change ICON of MFC Application and Dialog

by Binu MD

Change the default ICON of MFC applications

CMFCEditBrowseCtrl Without Flickering

by hofingerandi

Workaround for a bug in the CMFCEditBrowseCtrl that causes heavy flickering (starting with Windows 7)

ColourGrabber2

by rbrunton

Using Windows hooks to capture mouse action.

Combinations without repetition algorithm C++/MFC

by danielexx

Algorithm C++/MFC

Compile MFC Sources with Visual Studio 2019

by ferdo

How to compile MFC sources with VS 2019 (for ARM64 too)

Connect System using WMI Services

by SaahilPriya

Connect Systems using WMI Services, Remote as well as Local

convert a win32 rc file to XML

by Mukit, Ataul

this tip tells about a tool that converts a win32 rc file to XML

Convert Dialog Resource Units to Pixels

by Mukit, Ataul

This tip shows you how to convert the dimension values in the .rc file of a dialog into pixels

Convert Document File to PDF

by _Flaviu

A simple way to convert an office document to PDF

Convert Win32 Console Application to MFC

by Pranit Kothari

If you have chosen Win32 console based application while using New Project Wizard, and later you realize you need to add MFC support, here is a trick.

Count the Number of OLE Automation Instances

by SaahilPriya

The sample demonstrates how to count the number of OLE Automation Objects running at a particular time.

Create a cursor from an ICON

by Mukit, Ataul

This tip is about creating a cursor from an icon

Create bitmap from pixels

by Mukit, Ataul

Create a bitmap from an array of pixels

CreateProcess() and wait for result

by SuperFun21

A general function using MFC that runs a command using CreateProcess(), waits for it to terminate, and returns its ExitCode.

CResizeWnd, Handle a Dialog Resizing Without Dialog Border

by TyrWang

Use CResizeWnd as an add-on to any dialog

CTreeObject - A Memory CTreeCtrl like Object

by _Flaviu

A memory CTreeCtrl like object, but resident in memory only

CTRL+ I is received as TAB in the OnChar event of a window

by Mukit, Ataul

This is not so much of a trick, just a little tip about how CTRL+I is interpretated in a window

Disable the context sensitive help

by CHMLPAVANI

Sometimes we tend to enable the context sensitive help while creating a project, how to disable that later and get rid or error/information pops on clicking F1 while the application is running.

Disabling Windows file system redirection on a CFileDialog

by Kartik Sura

Introduction...

Displaying the 'new' Vista/Windows 7 File Dialog in 'old' MFC Apps

by .dan.g.

Displaying the 'new' Vista/Windows 7 File Dialog in 'old' MFC Apps

Don’t Use Elephant for Your Garden Work

by M Sheik Uduman Ali

Don’t use elephant for your garden work

Drag and Drop in a Dialog

by Jibesh

Simple Drag and Drop functionality in a dialog.

Drawing a Custom Mainframe Window for MFC SDI Applications

by Biruk Abebe

How to completely take control of drawing a custom application window including the captionbar, menubar, toolbar, borders and statusbar in MFC Single document interface (SDI) applications using the MfcSkinSDI class.

Extracting A Particular Icon From an .ICO Resource

by Kyudos

Extracting A Particular Icon From an .ICO Resource

Fast base64 functions for encode/decode

by Ștefan-Mihai MOGA

A quick solution to transform binary data to plain text

Fast Ensure Visible for CGridCtrl

by Mukit, Ataul

This tip shows a very fast algorithm (with some constraints enforced for it to work) to EnsureVisible a row in CGridCtrl by Chris Maunder

Find All Windows Operating Systems

by Not Active

Plagiarized from http://msdn.microsoft.com/en-us/library/ms724429(VS.85).aspx[^]

Finding a substring in a text

by Ștefan-Mihai MOGA

How to find a substring in a text, forward and backward, with Case Sensitive and Match Whole Word options.

FindWhat

by Roger65

Find file or use wildcard i.e. dlg*.h, or *.*

Fixing the CanAdjustLayout Ommision from CDockablePane

by Rick York

Something to help compile samples from the VS2010 feature pack

Formatted MessageBox/AfxMessageBox

by Ajay Vijayvargiya

Need to Format/sprintf a string before displaying a messagebox? Here is solution!

Formatted MessageBox/AfxMessageBox

by Aescleal

printf is so 1980s. If you don't want to dig out your shoulder pads and big hair why not go for a more modern C++ approach?Instead of a function try a stream buffer:class message_box_stream_buf : public std::basic_streambuf{ public: message_box_stream_buf( const...

From scratch, made a mfc library in Visual Studio 2015

by Juan AG

Create a dll wich uses MFC statically linked and allow you to call normal methods, static methods and global variables, quick an easy

Generate Serial CPP

by Apprieu (Apprieu)

How to generate a serial key with Crypto API MFC

Get Highlight Selected Items on CListCtrl when there is no Focus

by MaxMax14

Keep the items highlighted when focus is on another control

Get Windows Win32 Error Text - Simplified

by Thomas B Dignan

Getting the text of Win32 Error codes for 99% of cases.

HexCounter

by majid torfi

HexCounter, Calculate the number HEX duplicate

Hosting Windows Forms User Control in MFC Dialogs

by Aydin Homay

This tip/trick discusses about hosting a Windows Form user control in an MFC dialog box and View windows.

How to Create a Hierarchical Menu Using HTML And CSS

by Nitesh Kejriwal

Friends, I am planning to write a series of articles on creating menus in different ways and this is the 1st one in the series. This post will explain how to create a simple 2 level menu using HTML and CSS only. We know there are a lot of ways to create a HTML menu …Read more →

How to Hide Menu in CDockablePane

by _Flaviu

A method of how to get rid of "close" menu from multiple CDockablePane panels

How to implement a resizable property sheet class that contains a menu bar in Visual C++ 6.0

by Mukit, Ataul

Link to How to implement a resizable property sheet class that contains a menu bar in Visual C++ 6.0

How to load a view in maximized mode by default in MFC

by Mukit, Ataul

Addresses the issue of opening a view in maximized mode the proper way in MFC.

How to Parse Empty Tokens using CString::Tokenize()

by SoMad

The example for CStringT::Tokenize() on the MSDN page (and just about everywhere else on the Internet) skips empty tokens. Here is how to use it in order to get empty strings instead of simply skipping those fields.

Including stdafx.h in a non-default location

by Albert Holguin

The vc compiler and intellisense don't look for pre-compiled header in a similar manner, this is a summary of the issue along with workarounds

Integration .NET Component into your Native MFC Application (1)

by sunhui

Integrate .NET Component to your Native MFC Application at runtime

IntelliLink - An Alternative Windows Version to Online Link Managers

by Ștefan-Mihai MOGA

A look at the URLDownloadToFile function and architecture of IntelliLink

Know When CDialogBar is Closed

by _Flaviu

A way to know when a floating CDialogBar is closed

LaptopUSBμcontroller : ways

by Member 11246861

Some ways in which laptops and microcontrollers communicate

Link order and mixed-mode DLLs

by hairy_hats

When linking a mixture of mixed-mode and unmanaged DLLs to an unmanaged C++ executable, the link order can affect how the program runs.

Load a 256 color bitmap properly into an imagelist

by Mukit, Ataul

This tip shows the technique of loading a 256 color bitmap into an image list

MAPI/Exhange Server Name

by Ștefan-Mihai MOGA

How to get the MAPI server nane

Maximize Windows on Multiple Monitors

by bishopnator29a

Simple method how to make application's window maximized on different monitors in multi-monitor setup.

MFC CRecordset - How to Bypass the 255 Column Limit

by rev78

Simply bypass the 255 columns in MFC CRecordset

MFC Grid control 2.27 Compatibility with Grid Control 2.21

by Aydin Homay

Minor changes on CGridCtrl 2.27 for compatibility with old version of this control

MFC KillFocus Derived CEdit

by Shao Voon Wong

MFC KillFocus Derived CEdit to solve the Q&A question which has been reposted

MFC MDI Application Glue

by Christian Kleinheinz

Retrieving the correct pointer anytime and anywhere in MFC MDI applications

MFC PowerShells Easily: Encrypt and Decrypt

by aljodav

An easy way to encrypt files that are automatically decrypted in the same user account

MFC PowerShells Easily: JSON to HTM (Motivated by a Forum Question)

by aljodav

A simple, short and easy way to display a JSON object in a browser (motivated by a forum question)

MFC PowerShells Easily: Reading CodeProject RSS feed for new articles

by aljodav

Easily reading CodeProject RSS feed for new articles from a MFC Application

Missing CMFCListView Class

by Ștefan-Mihai MOGA

How to implement the missing CMFCListView class

Moving Listbox Items Up and Down

by MaxMax14

For single or multiple selection CListBox

Multiple Projects in One Solution

by bkelly13

Multiple Projects in One Solution

OpenGL MFC/CDialog - Basic

by ReturnVoid

Working example: OpenGL CDialog Multiple Context

Pitfalls when using COleDataSource for Clipboard and Drag & Drop Operations

by Jochen Arndt

Information about COleDataSource not contained in the Microsoft documentation or hardly to be found

Polynomial Interpolation Algorithm from 1 to 9 Degree that Allows to Force the Constant Term to 0

by fernando amatulli

Polynomial interpolation algorithm from 1 to 9 degree that allow forcing constant term to 0

Printing by MFC WITHOUT Document/View architecture

by Javad Taheri (drjackool)

Programatically Configure an Ethernet Network Adapter on a Windows Machine Using C/MFC

by Antonio Miras

Programatically set a static IP, subnet mask and gateway to an ethernet network adapter on your local machine

Protect 'DLL hijacking' in MFC app with MAPI and Microsoft Office

by Reto70

Protect 'DLL hijacking' in MFC app with MAPI and Microsoft Office

Provide Command UI support for menu in a CDialog/CPropertySheet

by Mukit, Ataul

Shows how to enable invoking of the OnUpdateCmdUI(...) in a dialog or property sheet when a menu bar item is pulled down to show popup menu

Query Database From MFC (Database Viewer)

by Mahdi Nejadsahebi

How to query a database file from an MFC application.

RaspberryPi2 Server-ASUSlaptop Client, Blocking Socket, 2 Fonts

by Member 11246861

Wifi communication between RaspberryPi2 and Laptop ASUS: fonts English, Russian.

Replace one color with another in the bitmap of a given device context

by Mukit, Ataul

Given a device context, replace a color (clrColorReplace) in a rectangular region of the device context with another color (clrColorFill)

Responsive GUI Application Tricks

by PawelBujak

How to avoid blocking long operations in GUI applications, that lead to hung state.

Rich Edit Control Odd "Find" Behavior - Solved

by Matt Fichtenbaum

A rich edit control's "find text" operation failed, but the same code worked in another program.

Save a 24 bit bitmap's pixel data to File in BMP format

by Mukit, Ataul

This tip shows how to save a 24 bitmap to a file given filename, pixel data, bitmap width and bitmap height

Save Message to MSG Compound File

by Ștefan-Mihai MOGA

How to save a message to an MSG Compound file.

Scroll Window

by Tu (Le Hong)

A scroll window that surpasses the 16-bit limit and can be hosted by a dialog.

Security Blackout Window

by Richard MacCutchan

Obscure a window or the screen and show a dialog.

Select Font

by Roger65

Selected Font name, Point Size and Weight are displayed

Serial Communication between Laptop and Microcontroller

by Member 11246861

Under laptop's control, microcontroller sends sensor data to laptop that displays numbers and graphic.

Setting Landscape Mode in an MFC Application Written in C++

by Bob Van Tuyl

How to set landscape mode in MFC app

Setting Write Direction and Alignment

by Michael Haephrati

How to set write direction and alignment

Shadow Relations: How to Register the Changes :)

by Eugen Podsypalnikov

http://rapidsh...

Simple DXF Reader/Viewer with Spline Support

by Hasan Gurler

Simple DXF reader and viewer supporting the most common AutoCAD entities

Simple DXF Reader/Viewer with Spline Support

by ravenspoint

This is an alternative for "Simple DXF Reader/Viewer with Spline Support"

Simple Way to Make Transparent Dialog

by Gautam Agrawal (Programming Expert)

Enable user to make a dialog transparent without making its child control transparent

Singular vs. Plural in Item Counts

by David Wincelberg

A simple way to display "item" or "items" instead of "item(s)"

Solve CVT1100: duplicate resource. type:MANIFEST issue in Visual Studio for MFC/C++

by Mukit, Ataul

Solve the CVT1100 error.

Solve error LNK2005: _DllMain@12 already defined in msvcrtd.lib(dllmain.obj) in MFC Projects

by Mukit, Ataul

Steganography with OOXML for Office (Zip)

by kennethman

Hide data inside the zip structure of any zip-based file.

Subclassing CEdit to disable clipboard operations

by mahendra.kumar.786

Clipboard operations like cut, copy, paste on a normal CEdit control can be disabled usng subclassing.

The Photoshop-Like Color Palette Dialog

by lxdfigo

A Photoshop-Like Color Palette Dialog in MFC

Through the Back-Door: Back From the Stack :)

by Eugen Podsypalnikov

http://rapidsh...

TypeStatic - Utility for Saving Text

by Roger65

How to type text into a static control, change the font used and then save it into a bitmap

Use VS2010(or 2013) to build pure MFC4.2 Apps

by GhostEx

Using MFC CFolderPickerDialog

by JPhelps

Using CFolderPickerDialog

Validation for Decimal Number

by Sweta Mittal

Validate whether value in string is a valid decimal number or not.

View the current library link order in a VC project

by Mukit, Ataul

Shows how to view the current library link order in a VC project

Vista Common File Dialog+Read Only

by Javad Taheri (drjackool)

How to use read only option in Vista common file dialog

Visual C++: How to Create Standalone Win32 Application Not Requiring Visual C++ Runtime

by Emiliarge

How to statically link a Win32 Project with Visual C++ libraries (m***.dll)

VTK in MFC

by _Flaviu

A small guide to use VTK in MFC

Where's the model for MFC Doc/View Design?

by Issam Lahlali

Working with Excel in MFC

by _Flaviu

Improved Excel class

Yet Another Spy

by Akos Mattiassich

Find a window on the desktop, spy its properties and manipulate it.