C++

1 answer

How can I get apps on different platforms to communicate?

I wonder if there is anyone out there who can help me with a solution to an application I want to create. This solution will contain two separate platforms, communicating with each other via network, serial ports, or something else. The first platform…

asked

Chuck Kvasnicka 40

accepted

Chuck Kvasnicka 40

2 answers

VS can't find the header file located at obvious position

As you can see, I placed game.h in the header file filter and hecate.cpp in the source file filter. The hecate.cpp file includes game.h, but it shows an error indicating that the game.h file is not found. How can Visual Studio make such an obvious…

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凌辉丁 0

answered

RLWA32 43,051

1 answer

Need to get real OS Version

Hi need to get the real OS Version of the current machine in C++. Essentially I need something similar to "GetVersionExW", but a version of it that: Is not deprecated Does not require the application to be explicitly manifested…

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t miguel 21

commented

RLWA32 43,051

2 answers

Disabling autocompletion from anything else than Tab in VS 2022

Although I set "Default IntelliSense completion mode" to Tab-only in Text Editor/Advanced, Visual Studio keeps replacing text as I type with its first suggestion when I press e.g. space or dot. I do not want the editor to ever autocomplete…

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Coco_l_asticot 20

accepted

Coco_l_asticot 20

4 answers

How does Windows' 'Game Controllers' properties connect to a joystick?

The situation: We need to use a new game controller (with a joystick only) hardware on Windows 10 IoT. In the properties of "Game Controllers", moving the joystick is visible in the displayed rectangle with the '+'. Our software using DirectX8…

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Robin Holenweger 0

answered

Robin Holenweger 0

1 answer

error C2039: 'string_view': is not a member of 'std'

I have installed a fresh VS2022 (community). I created a MFC app, and I compiled and worked fine. I put the following line of code, in a header, lets say class CMFCApplication1Doc : public CDocument: // MFCApplication1Doc.h : interface of the…

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Flaviu_ 971

accepted

Flaviu_ 971

2 answers

System.IO.SerialPort throws System.PlatformNotSupportedException when calling from c++, but not from c#.

I have a perplexing issue with the System.io.Ports package in a Class Library I built using c#/.NET6. I suspect it is a misconfiguration, but I'm not seeing much helpful documentation thus far on StackOverflow. As some background, I must support an old…

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Michael Bower [emkaTech] 20

commented

Edi Ben 0

1 answer

how to reduce size in c++?

I used just one func in lib. but if I do not use this func the size may be 30kb if I use it is 150kb but I just use one not all. the .h file is very big. 331kb how to reduce unused codes? I am creating dll

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mc 4,111

accepted

mc 4,111

1 answer

C++20 Modules in Shared Libraries

Hello, Follow-up question to https://learn.microsoft.com/en-us/answers/questions/1665106/how-to-use-c-20-modules-in-shared-libraries I’ve been exploring the use of C++20 modules in shared libraries and I understand the typical approach involves providing…

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Michael Brunner 40

edited a comment

Minxin Yu 10,871 Microsoft Vendor

2 answers

Visual Studio 2022- Couldn't install Microsoft.VisualCpp.Redist.14

I'm trying to install Desktop development with C++ for Visual Studio 2022. Attempting to install this using the Visual Studio Installer returns an error stating: Couldn't install Microsoft.VisualCpp.Redist.14 The log file mentions another log file that…

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OldIslander 25

edited an answer

Rajesh Rohan 0

1 answer

can not use static library (.lib) which is created by .net?

I created static library using .net with publishAOT dotnet publish -r -win-x64 -release /p:NativeLib=Static then I create dynamic library in c++ (.dll) and want to use this library but it seems can not . #pragma…

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mc 4,111

accepted

mc 4,111

0 answers

Documentation clarification for MF_MT_AUDIO_AVG_BYTES_PER_SECOND for AAC encoder

The documentation here: https://learn.microsoft.com/en-us/windows/win32/medfound/aac-encoder States that for AAC encoding the valid values for **MF_MT_AUDIO_AVG_BYTES_PER_SECOND **are 12000, 16000, 20000, 24000. It then says that * 6 those values should…

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mb 0

commented

Jeanine Zhang-MSFT 9,431 Microsoft Vendor

2 answers

How to initialize inner class that has a c-tor with more than one parameter

Hi to all, I'm trying to write a simple code and it won't compile! Any ideas? #include <stdio.h> class RegClass { public: RegClass(int param, char * theName) { printf("c-tor (%d,%s)\r\n", param, theName); } }; class Test { public: int…

asked

S. Beniashvili 20

edited an answer

Minxin Yu 10,871 Microsoft Vendor

2 answers

Direct2D drawing quality is inconsistent

This is the result drawn in the window(HwndRenderTarget) This is the result of drawing in WicBitmapRenderTarget

asked

HoWe Yu 41

accepted

HoWe Yu 41

1 answer

How to initialize inner class that has a c-tor with parameters

Hi to all, I'm trying to write a simple code and it won't compile! Any ideas? #include <stdio.h> class RegClass { public: RegClass(int param) { printf("c-tor (%d)\r\n", param); } }; class Test { public: int a; RegClass Reg(5); }; int…

asked

S. Beniashvili 20

commented

S. Beniashvili 20

0 answers

Finding window element using MSAA

I'm trying to detect the "Previous" and "Next" buttons of the Spofity MiniPlayer window using MSAA, however, sometimes these buttons don't get detected, I don't understand why, it's like luck, I need to reopen the window uncountable…

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Laila 0

commented

Jeanine Zhang-MSFT 9,431 Microsoft Vendor

2 answers

How to modify the value of a preprocessor based on the value returned by a command or script?

On visual Studio 2022 how to have a preprocessor value defined based on the result returned by a script? What i tried: Solution Explorer > Properties > Build Events > Pre-Build Event > Command Line > "python script.py >…

asked

Leo Purktz 0

commented

Minxin Yu 10,871 Microsoft Vendor

2 answers

C++ Inner class construction problem

Hi to all, I can't figure out what is the problem with the following simple C++ code! the inner RegClass class within Test class won't construct. Any ideas? #include <stdio.h> class RegClass { public: RegClass() {…

asked

S. Beniashvili 20

answered

Minxin Yu 10,871 Microsoft Vendor

0 answers

How to Utilize SetColor(Windows::UI::Colors::Red) from a Non-UWP and Non-C++/WinRT DLL File

Hi, I have developed a C++ DLL without utilizing UWP or C++/WinRT. Within this DLL, I am employing Windows::Devices::Lights::LampArray^ lamp to retrieve information about the lamp, such as lamp->IsConnected, lamp->LampCount, and…

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sunil maurya 21

edited a comment

Junjie Zhu - MSFT 16,551 Microsoft Vendor

3 answers

There is a red wavy line but there is no error. Bug or settings?

void ff(int* p) { std::cout<< *p; }; void ff(unsigned int i) { i++; } void func(void (&&fp)(int*)) { int i = 6; fp(&i); } //no other overloaded versions of func ...... func(ff); I compiled with no error or warning, but there is a…

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zzzhhh 40

answered

RLWA32 43,051

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3,629 questions with C++-related tags

How can I get apps on different platforms to communicate?

VS can't find the header file located at obvious position

Need to get real OS Version

Disabling autocompletion from anything else than Tab in VS 2022

How does Windows' 'Game Controllers' properties connect to a joystick?

error C2039: 'string_view': is not a member of 'std'

System.IO.SerialPort throws System.PlatformNotSupportedException when calling from c++, but not from c#.

how to reduce size in c++?

C++20 Modules in Shared Libraries

Visual Studio 2022- Couldn't install Microsoft.VisualCpp.Redist.14

can not use static library (.lib) which is created by .net?

Documentation clarification for MF_MT_AUDIO_AVG_BYTES_PER_SECOND for AAC encoder

How to initialize inner class that has a c-tor with more than one parameter

Direct2D drawing quality is inconsistent

How to initialize inner class that has a c-tor with parameters

Finding window element using MSAA

How to modify the value of a preprocessor based on the value returned by a command or script?

C++ Inner class construction problem

How to Utilize SetColor(Windows::UI::Colors::Red) from a Non-UWP and Non-C++/WinRT DLL File

There is a red wavy line but there is no error. Bug or settings?