Using C++/WinRT without MSIX packaging
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EUINGHYEOK KIM
0
Reputation points
Environment:
- Visual Studio 2022 Version 17.6.4
- Windows SDK Version: 10.0.22621.0
- C++ Language Standard: ISO C++20 Standard (/std:c++20)
Hello! I'm trying to use Windows Hello API by C++/WinRT without MSIX packaging.
I have two question about this.
First question is package identity.
- According to "APIs that require package identity", "Windows.Storage.Streams.DataWriter" and "Windows.Storage.Streams.DataReader" WinRT classes require package identity.
- According to stackoverflow, without package identity "HRESULT 0x80073D54 : The process has no package identity exception" is thrown.
- But, I can use "Windows.Storage.Streams.DataWriter", "Windows.Storage.Streams.DataReader" WinRT classes without exception in without MSIX packaging environment and working as intended.
- if exception isn't thrown, is it okay to use WinRT classes without MSIX packaging?
Second question is "Methods that use the Request naming pattern".
- According to "Methods that use the Request naming pattern", Methods that follow the Request naming pattern aren't supported in desktop apps.
- What does "desktop apps" mean?
- I can call "KeyCredentialManager.RequestCreateAsync Method" without exception in Windows Console Application and working as intended.
Windows development | Windows App SDK
Windows development | Windows API - Win32
Developer technologies | C++
Developer technologies | C++
A high-level, general-purpose programming language, created as an extension of the C programming language, that has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation.
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Castorix31 91,506 Reputation points2023-07-10T08:21:47.7966667+00:00 According to "APIs that require package identity"
I don't understand this list either : most of them work in non-packaged Desktop apps (like Windows.Graphics and others)
(not Windows Hello : I had tested Create a Windows Hello login app in a Desktop app and it returns as you said :
"The process has no package identity. (Exception from HRESULT: 0x80073D54)"
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Jeanine Zhang-MSFT 11,356 Reputation points Microsoft External Staff2023-07-10T08:31:00.6+00:00 1: if exception isn't thrown, is it okay to use WinRT classes without MSIX packaging?
Could you please tell us what type of project are you developing? Whether have you selected
Packagedwhen you created the project? What do you mean "without MSIX packaging"?2: What does "desktop apps" mean?
Refer to the Doc: Other app types
Win32 desktop apps (also sometimes called classic desktop apps) are the original app type for native Windows applications that require direct access to Windows and hardware. This makes this the app type of choice for applications that need the highest level of performance and direct access to system hardware.
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EUINGHYEOK KIM 0 Reputation points
2023-07-11T08:01:56.39+00:00 Re-registered the comment.
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EUINGHYEOK KIM 0 Reputation points
2023-07-11T08:42:45.6566667+00:00 What do you mean "without MSIX packaging"?
- I think that "without MSIX packaging" means "The process has no package identity.".
- To be more specific, when the GetPackageFamilyName function returns APPMODEL_ERROR_NO_PACKAGE.
Whether have you selected
Packagedwhen you created the project?- what does mean "selected Packaged when created the project"?
- I just created "Empty project" and there was no process to select
Packaged.
Could you please tell us what type of project are you developing?
- Create "Empty Project" in Visual Studio 2022 Version 17.6.4.
- Set "Windows SDK Version" and "C++ Language Standared" in General Properties. (10.0.22621.0, ISO C++20 Standard (/std:c++20))
- Add "main.cpp" file.
#include <winrt/windows.foundation.collections.h> #include <winrt/windows.security.credentials.h> #include <winrt/windows.security.cryptography.h> #include <iostream> #include <string_view> using namespace winrt; using namespace winrt::Windows; using namespace winrt::Windows::Security; int main() { const auto retrievalResult = Credentials::KeyCredentialManager::RequestCreateAsync(L"windows hello", Credentials::KeyCredentialCreationOption::ReplaceExisting).get(); const auto keyCredentialStatus = retrievalResult.Status(); if (keyCredentialStatus != Credentials::KeyCredentialStatus::Success) { return -1; } const auto keyCredential = retrievalResult.Credential(); const auto publicKeyBuffer = keyCredential.RetrievePublicKey(); const auto publicKeyBase64 = Cryptography::CryptographicBuffer::EncodeToBase64String(publicKeyBuffer); std::wcout << std::wstring_view(publicKeyBase64); system("pause"); return 0; }- Build and run. -> successful to run without any exceptions.
- According to "APIs that require package identity" and "Methods that use the Request naming pattern", i think that this process shoud be thrown any exceptions or failed to run.
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Jeanine Zhang-MSFT 11,356 Reputation points Microsoft External Staff
2023-07-11T09:07:38.9033333+00:00 The documentation you refer to belongs to the
Windows App SDK. And you're creating a Windows console application.The documentation said:
Although you can use most Windows Runtime (WinRT) APIs (see Windows UWP namespaces) in your C# or C++ desktop app, there are two main sets of WinRT APIs that aren't supported in desktop apps, or that have restrictions: APIs that have dependencies on user interface (UI) features that were designed for use only in a Universal Windows Platform (UWP) app. APIs that require package identity (see Features that require package identity). Such APIs are supported only in desktop apps that are packaged using MSIX.
As far as I'm concerned, the document is based on desktop applications.
If you want to develop a Windows Hello app, I suggest you could start from the Doc:
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EUINGHYEOK KIM 0 Reputation points
2023-07-11T09:32:14.6233333+00:00 I'm sorry. Windows Console Application was just a sample.
I want to add authentication process using Windows Hello in an already developed mfc application.
It’s quite confusing since i was able to call "KeyCredentialManager.RequestCreateAsync Method" or was able to use "Windows.Storage.Streams.DataReader" without exceptions when i tested in mfc application which is GetPackageFamilyName function returned APPMODEL_ERROR_NO_PACKAGE.
And when I called function "Application.Current Method" in mfc application, "The process has no package identity. (Exception from HRESULT: 0x80073D54)" exception thrown.
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Jeanine Zhang-MSFT 11,356 Reputation points Microsoft External Staff
2023-07-12T02:46:50.6433333+00:00 It seems to be a documentation issue. I suggest you could feedback the issue base on the document link.
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