We have a macOS app (not yet released, but in use by ourselves), that provides scoreboards for streaming sport events.
Today it is expected, that there are nice animations for goals, etc. We are streaming using NDI, which requires a CVPixelBuffer for each frame.
We currently create these animations using CABasicAnimation, CAAnimation and CAKeyframeAnimation. In addition we use ScreenCaptureKit to generate the frames.
This works fine with 25/30 fps, as long as the window where our animations are performed in is visible. But this is not what it should be. We have a smaller window as main app window and control display performing the animations in reduced size, while the streaming animations need to be in HD format and later maybe in 4K.
When using an offscreen window, the animations are not calculated. We get 1 frame per second or so. So we actually have to connect an external display to the MacBook and open the large windows there. Ugly solution.
Do we use a completely wrong approach? Or is there a way to tell the macOS to perform the animations although it is an offscreen window?
If it cannot work that way, what is an alternative?
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I have code that captures a window and displays a cropped image. The problem is 2 fold. Kit doesn't seem to allow to modify stop and recapture image in window mode to capture a portion of the screen.
So this makes me having to crop and display the cropped image via a published variable. This all works find. But seems to stop after some time.
Using an M1 16gig ram. program is taking less than 100meg of mem with 40-70%cpu as the crow flies.
printing captured success in debug mode and sometimes frame isn't valid so guarding against it.
any ideas on how to improve my strategy?
Imagine a native macOS app that acts as a "launcher" for a Java game.** For example, the "launcher" app might use the Swift Process API or a similar method to run the java command line tool (lets assume the user has installed Java themselves) to run the game.
I have seen How to Enable Game Mode. If the native launcher app's Info.plist has the following keys set:
LSApplicationCategoryType set to public.app-category.games
LSSupportsGameMode set to true (for macOS 26+)
GCSupportsGameMode set to true
The launcher itself can cause Game Mode to activate if the launcher is fullscreened. However, if the launcher opens a Java process that opens a window, then the Java window is fullscreened, Game Mode doesn't seem to activate. In this case activating Game Mode for the launcher itself is unnecessary, but you'd expect Game Mode to activate when the actual game in the Java window is fullscreened.
Is there a way to get Game Mode to activate in the latter case?
** The concrete case I'm thinking of is a third-party Minecraft Java Edition launcher, but the issue can also be demonstrated in a sample project (FB13786152). It seems like the official Minecraft launcher is able to do this, though it's not clear how. (Is its bundle identifier hardcoded in the OS to allow for this? Changing a sample app's bundle identifier to be the same as the official Minecraft launcher gets the behavior I want, but obviously this is not a practical solution.)
Hi Apple & devs,
I'm trying to test various Windows .exe files using the Game Porting Toolkit (GPTK), but I’m hitting a wall: no matter what .exe I try, the command returns instantly with no output — no error, no logs, nothing.
Here's what I'm doing:
I'm using macOS Sequioa 15.5 on M1 macbook pro.
I installed gameportingtoolkt GPTK 2.1 through brew from gcenx:
brew install gcenx/wine/game-porting-toolkit
When I run any .exe using GPTK's wine64, like this, e.g. with steam
user@JMacBook-Pro / % WINEPREFIX=~/wine_prefix /usr/local/bin/gameportingtoolkit 'C:\SteamSetup.exe' --verbose
user@JMacBook-Pro / %
Immediate exit without any return code, output, nor errors.
No output, no crash, no logs. Same result with simple test apps
Running with WINEDEBUG=+all (still no output)
Even running wine64 does the same thing.
I’ve tried:
Removing and reinstalling GPTK
Creating a fresh WINEPREFIX
Checking /tmp and ~/Library/Logs for logs — nothing
Has anyone else experienced this or have any idea how to debug it?
Is there ANY Apple support for this??
Thanks in advance.
I just got the new iOS 26 beta, and I LOVE the games app, but it show all of my games, even from years back. Is there a way to remove games from your library on the app?
Hello, when I'm looking to customize the icons of my phone, the applications that are in the grouping genres without replacing with all-black images, I don't know what happens by changing the color of the applications in group of change no color throws just listen not the black stuff
Topic:
Graphics & Games
SubTopic:
General
iPhone(14 Pro Max)で端末の画面にリフレッシュレートを表示させたいのですが、どなたか方法をご存知ないでしょうか?
Topic:
Graphics & Games
SubTopic:
General
App Storeにある『浮遊時計 Premium』は1Hzごとか10Hzごと、または3段階以上のリフレッシュレート計測はできますか?
Topic:
Graphics & Games
SubTopic:
General
Hello,
MacOS 26 Betas are limiting games (noticeably, games that use java) to the native display of the MacBook Pro (120hz). Even connecting an external display this is not changing. I have submitted a bug report, but I have not had any responses to it yet. I am looking to see if anyone may have an answer or fix to this issue.
Thanks!
Topic:
Graphics & Games
SubTopic:
General
Looks like is something to do with the code and that is why my images are distorted. please help me get to the right person to help me get this issue resolved
Topic:
Graphics & Games
SubTopic:
General
Hello,
I found an issue with the Games app on macOS 26 (Tahoe) when viewing achievements:
In App Store Connect, each achievement has different values set for the pre-earned description and the post-earned description.
When testing with GameKit directly (GKAchievementDescription), both values are returned correctly.
However, in the macOS Games app, the post-earned description is shown even before the achievement is earned.
This seems to be a display issue specific to the Games app on macOS.
Could you confirm if this is a known bug in the Games app, or if there is a reason why pre-earned descriptions are not being shown?
Thank you.
Hello everyone and thank you for you're time!
I got an issue with uploading several icons to testflight. I'm using Game Maker Studio as my engine for the game.
This is the error that I'm getting, even when I try to use the old icons for the game, that worked in the past. I tried to transform the icons, using this site "https://makeappicon.com/", but I still got the same validation error. Can you help me fixing the issue - thank you so much!
My IOS app generates pdf files.
Every time my users open the generated pdf files, the autofill popup jumps out, but my pdf file is NOT for interacting.
I'm here to ask if there's a way to mark my pdf files as "not a form", like in metadata or anywhere else?
Hi,
I have an Unity game. I need to have multiple App Icons for my game for it to be able to be recognized in different countries.
In other words, is it possible to have an iOS app in which the App Icon changes based on device locale/language?
On Android this is possible using Unity Localization package "com.unity.localization"
Topic:
Graphics & Games
SubTopic:
General
Hello everyone,
I'm working on a screen recording app using ScreenCaptureKit and I've hit a strange issue. My app records the screen to an .mp4 file, and everything works perfectly until the .captureMicrophone is false
In this case, I get a valid, playable .mp4 file.
However, as soon as I try to enable the microphone by setting streamConfig.captureMicrophone = true, the recording seems to work, but the final .mp4 file is corrupted and cannot be played by QuickTime or any other player. This happens whether capturesAudio (app audio) is on or off.
I've already added the "Privacy - Microphone Usage Description" (NSMicrophoneUsageDescription) to my Info.plist, so I don't think it's a permissions problem.
I have my logic split into a ScreenRecorder class that manages state and a CaptureEngine that handles the SCStream. Here is how I'm configuring my SCStream:
ScreenRecorder.swift
// This is my main SCStreamConfiguration
private var streamConfiguration: SCStreamConfiguration {
var streamConfig = SCStreamConfiguration()
// ... other HDR/preset config ...
// These are the problem properties
streamConfig.capturesAudio = isAudioCaptureEnabled
streamConfig.captureMicrophone = isMicCaptureEnabled // breaks it if true
streamConfig.excludesCurrentProcessAudio = false
streamConfig.showsCursor = false
if let region = selectedRegion, let display = currentDisplay {
// My region/frame logic (works fine)
let regionWidth = Int(region.frame.width)
let regionHeight = Int(region.frame.height)
streamConfig.width = regionWidth * scaleFactor
streamConfig.height = regionHeight * scaleFactor
// ... (sourceRect logic) ...
}
streamConfig.pixelFormat = kCVPixelFormatType_32BGRA
streamConfig.colorSpaceName = CGColorSpace.sRGB
streamConfig.minimumFrameInterval = CMTime(value: 1, timescale: 60)
return streamConfig
}
And here is how I'm setting up the SCRecordingOutput that writes the file:
ScreenRecorder.swift
private func initRecordingOutput(for region: ScreenPickerManager.SelectedRegion) throws {
let screeRecordingOutputURL = try RecordingWorkspace.createScreenRecordingVideoFile(
in: workspaceURL,
sessionIndex: sessionIndex
)
let recordingConfiguration = SCRecordingOutputConfiguration()
recordingConfiguration.outputURL = screeRecordingOutputURL
recordingConfiguration.outputFileType = .mp4
recordingConfiguration.videoCodecType = .hevc
let recordingOutput = SCRecordingOutput(configuration: recordingConfiguration, delegate: self)
self.recordingOutput = recordingOutput
}
Finally, my CaptureEngine adds these to the SCStream:
CaptureEngine.swift
class CaptureEngine: NSObject, @unchecked Sendable {
private(set) var stream: SCStream?
private var streamOutput: CaptureEngineStreamOutput?
// ... (dispatch queues) ...
func startCapture(configuration: SCStreamConfiguration, filter: SCContentFilter, recordingOutput: SCRecordingOutput) async throws {
let streamOutput = CaptureEngineStreamOutput()
self.streamOutput = streamOutput
do {
stream = SCStream(filter: filter, configuration: configuration, delegate: streamOutput)
// Add outputs for raw buffers (not used for file recording)
try stream?.addStreamOutput(streamOutput, type: .screen, sampleHandlerQueue: videoSampleBufferQueue)
try stream?.addStreamOutput(streamOutput, type: .audio, sampleHandlerQueue: audioSampleBufferQueue)
try stream?.addStreamOutput(streamOutput, type: .microphone, sampleHandlerQueue: micSampleBufferQueue)
// Add the file recording output
try stream?.addRecordingOutput(recordingOutput)
try await stream?.startCapture()
} catch {
logger.error("Failed to start capture: \(error.localizedDescription)")
throw error
}
}
// ... (stopCapture, etc.) ...
}
When I had the .captureMicrophone value to be false, I get a perfect .mp4 video playable everywhere, however, when its true, I am getting corrupted video which doesn't play at all :-
Since macOS 15.3.2, we have observed that when another window is moved near the App Store's install button, the button disappears.
We have attached a related video in the Feedback submission here https://feedbackassistant.apple.com/feedback/20444423
Our application overlays a transparent, watermark-window on top of the system window, which causes the install button in the App Store to be hidden when a user attempts to install an application.Could you advise on how to avoid this issue?
I have a game built in Unreal Engine 5.6 which uses tilt motion controls to rotate an object. I've restricted the app to only run in portrait for iPhone, and everything works fine, however for iPad I've had a few issues relating to multitasking and I can't seem to solve it.
Forcing the app to portrait only still allows the app to run in landscape mode, but shows black bars either side of the game, and the axes for the motion controls are incorrect. X becomes Y and Y becomes X, and there's no way for my app to know which orientation it is because the container is still technically portrait.
Allowing my game to run in all orientations makes the whole app more presentable, it doesn't add black bars and the game is still functional and I'm able to map the controls correctly because the game knows it's landscape rather than portrait.
The problem with allowing my app to run in landscape mode is if multitasking is enabled on the ipad, you can resize the app to be portrait, and then I run into the same problem again where the game thinks it's portrait mode and all of the axes are wrong again.
I tried getting the true orientation of the device rather than the scene, but the game is intended to be played flat so instead of returning the orientation of the OS the orientation is FaceUp, which doesn't help.
I need to either disable multitasking or find a way of getting the orientation of the OS (not the scene or the device). I haven't found how to get the OS orientation so I've been trying to disable multitasking.
I've got Requires Fullscreen true and UIApplicationSupportsMultipleScreens false in my info.plist but my iPad still seems to allow the window to be resized in landscape view. Opening the IOS workspace of my project Requires Fullscreen is ticked but under that it says "Supports Multiple Windows" and the arrow button next to it takes my to my info.plist values, but no indication of how I can change it.
I'm using Unreal Engine 5.6 and Xcode 16.0. Xcode is old I know, but this version of unreal engine doesn't seem to support any newer.
I have been trying to run an open source Windows executable that I would like to help porting to macOS using the Game Porting Toolkit but I stumbled on an issue quite early in the application lifecycle.
It looks like the funtion GetThreadDpiHostingBehavior is missing in USER32.dll
Has anyone any idea how to solve that?
During the startup, it fails with the following error:
TiXL crashed. We're really sorry.
The last backup was saved Unknown time to...
C:\users\crossover\AppData\Roaming\TiXL\Backup
Please refer to Help > Using Backups on what to do next.
System.EntryPointNotFoundException: Unable to find an entry point named 'GetThreadDpiHostingBehavior' in DLL 'USER32.dll'.
at System.Windows.Forms.ScaleHelper.DpiAwarenessScope..ctor(DPI_AWARENESS_CONTEXT context, DPI_HOSTING_BEHAVIOR behavior)
at System.Windows.Forms.ScaleHelper.EnterDpiAwarenessScope(DPI_AWARENESS_CONTEXT awareness, DPI_HOSTING_BEHAVIOR dpiHosting)
at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
at System.Windows.Forms.Control.CreateHandle()
at System.Windows.Forms.Application.ThreadContext.get_MarshallingControl()
at System.Windows.Forms.WindowsFormsSynchronizationContext..ctor()
at System.Windows.Forms.WindowsFormsSynchronizationContext.InstallIfNeeded()
at System.Windows.Forms.Control..ctor(Boolean autoInstallSyncContext)
at System.Windows.Forms.ScrollableControl..ctor()
at System.Windows.Forms.ContainerControl..ctor()
at System.Windows.Forms.Form..ctor()
at T3.Editor.SplashScreen.SplashScreen.SplashForm..ctor()
at T3.Editor.SplashScreen.SplashScreen.Show(String imagePath) in C:\Users\pixtur\dev\tooll\tixl\Editor\SplashScreen\SplashScreen.cs:line 25
at T3.Editor.Program.Main(String[] args) in C:\Users\pixtur\dev\tooll\tixl\Editor\Program.cs:line 111
I think I really have tried everything and I did all according to official documentation to support game mode on iOS or iPadOS but it doesn't matter what I do it just doesn't get triggered. Funny enough it works during development when I install it via Xcode but as soon as it is live on the store and when I install it from there game mode doesn't get triggered anymore. What I have atm
I have added (even though it is deprecated)
<key>GCSupportsGameMode</key>
<true/>
I have set the (but it seems only supported for macOS)
<key>LSApplicationCategoryType</key>
<string>public.app-category.games</string>
I have added
<key>LSSupportsGameMode</key>
<true/>
It just doesn't work. Is there anything else what needs to be done? Should the flag LSSupportsGameMode not be enough normally?
The reason why this is so annoying is that my app is a real time streaming app and I want to profit from minimised background activities for smoother gameplay and more consistent frame rates like mentioned in the documentation.
We used below method to resize image while compress the image,
Below method is correct or need to do the correction in method or "CGBitmapContextCreate"
-(UIImage *)resizeImage:(UIImage *)anImage width:(int)width height:(int)height
{
CGImageRef imageRef = [anImage CGImage];
CGImageAlphaInfo alphaInfo = CGImageGetAlphaInfo(imageRef);
if (alphaInfo == kCGImageAlphaNone)
alphaInfo = kCGImageAlphaNoneSkipLast;
CGContextRef bitmap = CGBitmapContextCreate(NULL, width, height, CGImageGetBitsPerComponent(imageRef), 4 * width, CGImageGetColorSpace(imageRef), alphaInfo);
CGContextDrawImage(bitmap, CGRectMake(0, 0, width, height), imageRef);
CGImageRef ref = CGBitmapContextCreateImage(bitmap);
UIImage *result = [UIImage imageWithCGImage:ref];
CGContextRelease(bitmap);
CGImageRelease(ref);
return result;
}