A_Librarian Mfc

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So this might be super basic, but that's what happens when you get a job you aren't wholly qualified for, right?
I've got an MFC project, everything is working great, but I'm trying to add the string and stringstream directive into the project.
No matter where I put #include and #include I get the "string: undeclared identifier" error.
Trending sort is based off of the default sorting method — by highest score — but it boosts votes that have happened recently, helping to surface more up-to-date answers.
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Try std::string instead of string, since string is in the std namespace
and I was searching for solution how to add dll to MFC project I will add here solution as time saver for all of you...
If you want to reference library you need 3 files:
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From Wikipedia, the free encyclopedia
14.22.27821.0
/ July 24, 2019 [1]
This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed. ( November 2011 ) ( Learn how and when to remove this template message )
Microsoft Foundation Class Library (MFC) is a C++ object-oriented library for developing desktop applications for Windows .

MFC was introduced by Microsoft in 1992 and quickly gained widespread use. While Microsoft has introduced alternative application frameworks since then, MFC remains widely used.

MFC was introduced in 1992 with Microsoft's C/C++ 7.0 compiler for use with 16-bit versions of Windows as an extremely thin object-oriented C++ wrapper for the Windows API. C++ was just beginning to replace C for development of commercial application software at the time. In an MFC program, direct Windows API calls are rarely needed. Instead, programs create objects from Microsoft Foundation Class classes and call member functions belonging to those objects. Many of those functions share their names with corresponding API functions. [2]

One quirk of MFC is the use of "Afx" as the prefix for many functions, macros and the standard precompiled header name "stdafx.h". During early development, what became MFC was called "Application Framework Extensions" and abbreviated "Afx". The name Microsoft Foundation Classes (MFC) was adopted too late in the release cycle to change these references.

MFC 8.0 was released with Visual Studio 2005 . MFC 9.0 was released with Visual Studio 2008. On April 7, 2008, Microsoft released an update to the MFC classes as an out-of-band update to Visual Studio 2008 and MFC 9. [3] The update features new user interface constructs, including the ribbons and associated UI widgets , fully customizable toolbars , docking panes which can either be freely floated or docked to any side and document tabs . [4]

MFC was initially a feature of the commercial versions of Visual Studio. As such, it is not included in the freeware Visual C++ Express . [5] The Community edition of Visual Studio , introduced in 2014, however, includes MFC.

Object Windows Library (OWL), designed for use with Borland's Turbo C++ compiler, was a competing product introduced by Borland around the same time. Eventually, Borland discontinued OWL development and licensed the distribution of the MFC headers, libraries and DLLs from Microsoft [6] for a short time, though it never offered fully integrated support for MFC. Borland later released Visual Component Library to replace the OWL framework.

MFC is a library that wraps portions of the Windows API in C++ classes , including functionality that enables them to use a default application framework . Classes are defined for many of the handle -managed Windows objects and also for predefined windows and common controls.

At the time of its introduction, MFC provided C++ macros for Windows message-handling (via Message Maps [7] ), exceptions , run-time type identification (RTTI), serialization and dynamic class instantiation. The macros for message-handling aimed to reduce memory consumption by avoiding gratuitous virtual table use and also to provide a more concrete structure for various Visual C++-supplied tools to edit and manipulate code without parsing the full language. The message-handling macros replaced the virtual function mechanism provided by C++.

The macros for serialization, exceptions, and RTTI predated availability of these features in Microsoft C++ by a number of years. 32-bit versions of MFC, for Windows NT 3.1 and later Windows operating systems, used compilers that implemented the language features and updated the macros to simply wrap the language features instead of providing customized implementations, realizing upward compatibility.

The MFC ribbon resource editor allows the developer to design the ribbon graphically instead of having to use the XML -based declarative markup like the RibbonX API . Optionally, ribbon components may be programmed directly by calling a new set of ribbon class methods. The developer may mix graphical and programmatic ribbon development as is convenient. The MFC application wizard has also been upgraded to support the new features, including a check-box to select whether the application will use the ribbon or the docking panes. The new functionality is provided in new classes so that old applications still continue to run. [4] This update is building on top of BCGSoft ’s BCGControlBar Library Professional Edition. [8] Microsoft has imposed additional licensing requirements on users of the ribbons. [9] These include a requirement to adhere to Microsoft UI Design Guidelines, and an anti-competition clause prohibiting the use of the UI in applications which compete with Microsoft Office .

MFC can be used by linking a static library or by adding the MFC DLL .

MFC 2.5 (Last development platform for Windows 3.x )

MFC 4.0 (mfc40.dll included with Windows 95 )

MFC 4.2 (mfc42.dll included with the Windows 98 original release)

MFC 4.21, a major upgrade from MFC 4.2.

Visual C++ .NET 2002 (Visual C++ 7.0)

Visual C++ .NET 2003 (Visual C++ 7.1)

Visual C++ .NET 2003 + MS11-025 (KB2465373) [10]

Visual C++ 2005 SP1 + MS09-035 (KB973544) [11] [12]

Visual C++ 2005 SP1 + MS11-025 (KB2467175) [10]

Visual C++ 2005 SP1 + MS11-025 (KB2538242) [10] [13]

8.0.50727.6195 (included in redist 8.0.61000/8.0.61001 [14] )

Visual C++ 2008 + MS09-035 (KB973551) [11] [12]

Visual C++ 2008 SP1 + MS09-035 (KB973552) [11] [12]

Visual C++ 2008 SP1 + MS11-025 (KB2467174) [10]

Visual C++ 2008 SP1 + MS11-025 (KB2538243) [10]

9.0.30729.6161 (installer has version 9.0.30729.5677)

Visual C++ 2010 + MS11-025 (KB2467173) [10]

Visual C++ 2010 SP1 + MS11-025 (KB2565063) [10]

Visual C++ 2013 Update 5 + KB3138367

Visual C++ 2013 Update 5 + KB3179560

Visual C++ 2013 Update 5 + KB4032938

Visual C++ 2015 Update 3 + KB3165756

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AlexS13-4008
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Dec 15 2021 at 3:00 PM
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RLWA32-6355
commented
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Dec 20 2021 at 1:15 PM

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YujianYao-MSFT
· Dec 16 2021 at 10:21 AM

AlexS13-4008
YujianYao-MSFT
· Dec 16 2021 at 11:42 AM

YujianYao-MSFT
AlexS13-4008
· Dec 16 2021 at 12:32 PM

RLWA32-6355
· Dec 16 2021 at 2:57 PM

flaviu
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Dec 15 2021 at 4:05 PM
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RLWA32-6355
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AlexS13-4008
· Dec 15 2021 at 6:06 PM

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· Dec 20 2021 at 12:36 PM

RLWA32-6355
AlexS13-4008
· Dec 20 2021 at 1:15 PM

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Hello. I'm trying to include a dialog class from an MFC library to an MFC application. When I include them like this:
it's working. When I include them from properties :
C/C++ Additional Include Directories : "Path"
Linker/General/Additional Library Directories) : ".obj path"
Linker/Input/AdditionalDependencies : CTestDlg.obj
MFC Application(is built from a wizard API, it's not default MFC App. If I create a default MFC app it's working) thrown an exception.
Any idea what could be causing the problem? Thanks.
Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.
Could you please tell me why you chose the .obj file when linking the library file? Normally, we should choose the .lib file when linking the library.
I know but I don't have .lib files in my folder.
Where did you get this library? Could you please provide the necessary code? It will help everyone to reproduce your problem.
Its unclear to me what you hope to accomplish with this exercise.
MFC dialog classes are closely tied to their related dialog resource. The constructor of the class uses the resource identifier established when Visual Studio creates both the class and resource. This linkage between the class and the dialog resource also exists between any MFC member variables that might be added to a dialog class for controls in the dialog resource since these are connected using DDX_CONTROL in the DoDataExchange function.
When the MFC code is compiled the .obj file will contain the resource identifiers for the class. However, using that .obj file raises the question about where the dialog resource needed by this .obj file is located. If the project into which you are linking the .obj file contains the needed dialog resource then all you have accomplished is moving the compilation of a .cpp file from one project to another. Attempting to reuse the dialog's .obj file in any other project requires that you also manually create the needed dialog resource in those projects. This isn't really an efficient way to reuse an MFC dialog.
If you really want to share an MFC dialog class between MFC projects I suggest you look into using an MFC Extension DLL.
Have you did a debugging in your code ? When exactly take happen that error ?
Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.
I can't really understand because it goes to API files.
Maybe it's something related to resource because the exception is thrown in this:
MFC Application(is built from a wizard API, it's not default MFC App. If I create a default MFC app it's working) thrown an exception.
What's the difference between an MFC application created by the new MFC Application wizard and a default MFC App?
OK, so an assertion failed. Posting two lines of code without any context doesn't tell us much.
If you want detailed debugging assistance you should share a complete MFC solution that reliably reproduces the problem.
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