I have the below code where my swift code calls a cpp function. In this the swift calls a cpp function and passes a swift 'String' as argument to it, which is then received in the cpp code as 'const char *'. This conversion works without any errors. Is this a documented behaviour in cpp-swift interop and is this safe to use? Swift side: internal static func CharCheck (pSentence: String) -> Void { TWSoundLogic.CharacterSoundCount (pSentence) } In the C++ side, void TWSoundLogic::CharacterSoundCount (const char * pSentence) { .. } However, on returning a String type from a swift function and trying to receive it as a const char* in c++, it gives an error in cpp No viable conversion from 'swift::String' to 'const char *' . Why does it not allow to return, but it allows to pass as argument? Can someone explain this behaviour?

I have a project that has Cpp code and swift code and I m making some calls from swift to cpp. For this I m using the Cpp-swift interop mechanism introduced in swift 5.9 for making direct calls between swift and cpp. I m using module.modulemap file to expose the cpp code to swift. I am facnig an error when I try to access a cpp header that are using the cpp compiler flags in some static assert statements. These methods are working fine in cpp however, when I try to access these methods from swift using the modulemap file, the compiler flags are not being identified by swift, and produces the below error error: use of undeclared identifier 'TW_KERNEL_WINDOWS'. This is my module.modulemap file: module CoreModule { header "ProcessStates.hpp" //cpp header that contains compiler flags export * } below is the cpp header code that I m trying to access in swift: #pragma once // if the given condition is false – treat as an error #define STATIC_CHECKFALSE(condition, message) static_assert (condition, message) STATIC_CHECKFALSE ((TW_KERNEL_WINDOWS == 0) || (TW_KERNEL_WINDOWS == 1), "TW_KERNEL_WINDOWS can only be 0 or 1"); Can someone help, why is this happening and how to resolve this?

I had raised a support request in Apple DTS for an issue related to notification. I had a few iteration with the support team related to this but the problem remains unresolved. Everytime I send a response for what has been asked, it takes more than a week for the team to reply. This issue has been pending for over a month now and my work is blocked due to this. Can someone help me in getting a quick response or tell me how to reach the relevant people who can help me with this? Here is my Case ID : 5269018

In IOS, when the device is kept idle for some time, the screen turns off and the device enters sleep mode. It also enters sleep mode when we press the power button to turn the screen off. In my application, I wanted to detect If the device has entered/exited the sleep mode. I have followed the below links but some of these ways like observing 'Darwin notifications' is no longer allowed by apple. Other ways consider the device being locked as sleep mode, which is not precisely correct. Is there a way to correctly determine this? Please share the apple documentation links if this is possible. https://stackoverflow.com/questions/14191980/detect-screen-on-off-from-ios-service/14208787#14208787 https://nemecek.be/blog/104/checking-if-device-is-locked-or-sleeping-in-ios

I have a mac application that is configured to have a universal link. Clicking the universal link launches my application. The documentation says that the link is received in the application(_:continue:restorationHandler:) delegate method which is invoked very late in the application lifecycle after applicationDidBecomeActive. I have the initialisation code of my app in applicationWillFinishLaunching method. Is there any way the Universal link can be received early, so that I can show the appropriate application window based on the universal link parameters? Is there any other delegate that receives the universal link?

The notification parameter in DidFinishLaunching contains a key LaunchIsDefaultLaunchKey which according to Apple documentation is: The value for this key is an NSNumber containing a Boolean value. The value is false if the app was launched to open or print a file, to perform a Service action, if the app had saved state that will be restored, or if the app launch was in some other sense not a default launch. Otherwise its value will be true. I m not able to understand the exact usecase for this parameter, like where can we make use of this parameter. Can I use this key to identify If my application was launched using a universal link?

I have observed that some of the applications like xcode show a list of recently opened documents in their dock menu like in the image below. I wanted to show similar recently opened docs for my application but I not able to find any resource on how to achieve this. Can someone help on how to do this?

I have created a universal link which I m using for two different applications in macOS. Below is the apple-app-site-association file for the same: { "applinks":{ "apps":[], "details":[ { "appID":"E5R4JF6D5K.com.demo.App1", "paths":[ "/app1/*" ] }, { "appID":"E5R4JF6D5K.world.demo.App2", "paths":[ "/app2/*" ] } ] } } After creating this file in my server and providing the same Url in my associated domain capability for both my application, when I try to launch my applications using the link then only the first application is getting launched everytime. The second application is never launched. for Url with http://custom.com/app1/... it redirects to first app. for Url with http://custom.com/app2/... it redirects to browser. I tried uninstalling the first app, but then it always directs in browser. I tried a separate url for both apps, and it works fine. I m not able to figure out the problem. The apple documentation says that it is possible to have two application linked to a common domain. Any help?

I wanted to add some dock menu options for my application when it is not running. These dock menu options can be used to launch the application. I came across dock TilePlugin that can be used to add these dock options. But one of the comments in this forum discussion mentions that these Plugins are not allowed if you want ot publish your application in the appStore. Can someone confirm this? If this is true, then Is there some other solution that can be used to add the dock options which appear when the application is not running, and can be used to launch the application? Also do the recent open Files appear using this plugin mechanism?

I was going through this apple documention and it states, "By default, the generated header contains interfaces for Swift declarations marked with the public or open modifier", however, In my Xcode project, the public methods are not visible in the objective C code, and only the methods that are marked with @objc are visible. Is there some problem in my code or Is this a bug?

In the mac general setting, we can provide the language preference for an individual application like in the image below, I have provided for TextEdit app. Now based on the system preferred languages, TextEdit will have a default language. However if I explicitly set the language for TextEdit (arabic in my example), then the application will use that language. I wanted to identify in my program the language that an app is currently running in. I have tried the below code, but it always return 'en', even after my preference is set to 'Arabic'. let u = URL(fileURLWithPath: "/System/Applications/TextEdit.app") let b = Bundle(url: u)! let textedit_preference = b.preferredLocalizations print(textedit_preference) //["en"] How can I identify what language is being set by the user for an individual application? I have followed this link but it does not contain this information.

I have a project where I m making direct swift calls from cpp as introduced in swift5.9. Below is my swift class whose method is being invoked on cpp. import Foundation public class MySwiftClass { public static func testInterop () -> Void { NSLog("----------- hey --------") } } I m able to successfully invoke 'testInterop()' in cpp with the above class, however if I add conformance to NSObject in the 'MySwiftClass' class, then the swift call fails with the error "No member named 'MySwiftClass' in namespace 'Module2'", where Module2 is my swift target. I m not able to identify why is this happening. Any help?

I am having a usecase where I wanted to detect the system language change event under OS X. I went throught the available options in NSNotification.Name , but did not find anything helpful. I found a similar link but it seems to be no longer applicable. Any help on how this can be achieved?

I m trying to create an xcode project with cpp-swift interoperability(introduced in xcode15) using cmake xcode generator. I m able to invoke cpp code in swift and vice-versa but when opening the project in xcode, the build setting for 'C++ and Objective-C Interoperability' is still set to 'C/Objective C' like in image below. I want to set it to 'C++/Objective-C++'. I m using the below cmake for this: . . add_library(cxx-support ./Sources/CxxSupport/Student1.cpp ./Sources/CxxSupport/Teacher.swift ) #include the directory to access modulemap content target_include_directories(cxx-support PUBLIC ${CMAKE_SOURCE_DIR}/Sources/CxxSupport) target_compile_options(cxx-support PUBLIC "$<$<COMPILE_LANGUAGE:Swift>:-cxx-interoperability-mode=default>" ) . . I Have also tried the below in cmake, but it didn't work. #set(SWIFT_OBJC_INTEROP_MODE "objcxx" CACHE STRING "") #target_compile_options(cxx-support PUBLIC #"SWIFT_OBJC_INTEROP_MODE=objcxx") Any help on how this can be achieved?

I am creating an Xcode project using xcode generator in Cmake. The project has a library which contains cpp files and swift files. I m trying to test swift-cpp interoperability that is introduced in xcode15 to perform direct cpp calls from swift and vice-versa. For this to work, we need to set a xcode build setting 'C++ and Objective-C Interoperability' which I m doing via cmake, Below is my cmake file: cmake_minimum_required(VERSION 3.18) project(CxxInterop LANGUAGES CXX Swift) set(CMAKE_CXX_STANDARD 11) set(CMAKE_CXX_STANDARD_REQUIRED YES) set(CMAKE_CXX_EXTENSIONS OFF) set(CMAKE_Swift_LANGUAGE_VERSION 5.0) add_executable(CxxInterop ./Sources/CxxInterop/main.swift ./Sources/CxxInterop/Student.cpp ) #include the directory with modulemap file and Student.hpp target_include_directories(CxxInterop PUBLIC ${CMAKE_SOURCE_DIR}/Sources/CxxInterop) #setting the xcode C++ and Objective-C Interoperability setting target_compile_options(CxxInterop PRIVATE "-cxx-interoperability-mode=default") when building the generated xcode project I get the error unknown argument: '-cxx-interoperability-mode=default'. However the weird thing is when I separate out the cpp code in a different library and swift files in a different one, then this works and I m able to invoke the cpp methods in my swift file after importing the clang module from the module map file. Is there any reason to why having cpp and swift files in same library producing this error? I m following this link to setup the project via cmake.