fix: allow camera usage when microphone permission is denied on Windows by AopBK · Pull Request #3140 · CommunityToolkit/Maui

AopBK · 2026-03-10T10:33:20Z

Description of Change

The settings for initialising MediaCapture now differ depending on whether microphone permissions have been granted. This prevents the app from crashing due to an UnauthorizedAccessException.

Linked Issues

Fixes [BUG] CameraView crashes on Windows if microphone permission is denied #3139

PR Checklist

Has a linked Issue, and the Issue has been approved(bug) or Championed (feature/proposal)
Has tests (if omitted, state reason in description)
Has samples (if omitted, state reason in description)
Rebased on top of main at time of PR
Changes adhere to coding standard
Documentation created or updated: https://github.com/MicrosoftDocs/CommunityToolkit/pulls

Additional information

VladislavAntonyuk · 2026-03-10T13:22:20Z

+			}
+
+			var cameraPermissionStatus = await Permissions.CheckStatusAsync<Permissions.Camera>();
+			if (cameraPermissionStatus == PermissionStatus.Granted)


We removed all permission checks from the library. It is now up to developers to request permission they need and when they need, with the way to use their own UI for user permissions.

Thank you for the clarification.
In my PR, the CameraViewExtensions.Windows.cs only checks the permission status, but does not request or manage permissions. The actual permission requests are handled in the CameraViewPage, as expected.
@VladislavAntonyuk ,could you please advise on how to best implement this in line with the library’s current design?
For example, should I pass a parameter from the manager, or is there another approach you recommend?

@VladislavAntonyuk How can we proceed? Can you check my comment

Hi @VladislavAntonyuk Is there still no suggestion? We have to move forward with this topic

I don't think we need to check for camera permission at all. For microphone permission as it is required for settings we can keep it.

Thanks @VladislavAntonyuk . I did a second commit with you suggestion. Looking forward to your comment.

@VladislavAntonyuk Could you please take a look and let me know what you think?

Copilot

Pull request overview

Adjusts Windows MediaCapture initialization for CameraView so camera usage can continue when microphone permission is denied, preventing UnauthorizedAccessException crashes (Issue #3139).

Changes:

Build MediaCaptureInitializationSettings dynamically based on microphone permission/capability state.
Add a camera permission status check and throw a CameraException when not granted.

TheCodeTraveler

Is there a better way to fix the linked issue without using Permissions.CheckStatusAsync?

CommunityToolkit.Maui.Camera (and all MAUI Toolkit libraries) now defers all permissions requests to the developers consuming our library:

https://github.com/CommunityToolkit/Maui/releases/tag/6.0.0-camera

AopBK · 2026-04-29T11:28:10Z

@dotnet-policy-service agree company="Bittner+Krull Softwaresysteme GmbH"

Copilot

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

TheCodeTraveler · 2026-05-08T23:54:38Z

Hey @VladislavAntonyuk! Did you get a chance to test on Windows to verify there's no popup dialog?

Resolved in May 2026 Standup

VladislavAntonyuk

@AopBK the application crashes if microphone permission is denied. Also the app now requests microphone permission automatically on first open.

AopBK · 2026-05-11T08:39:52Z

@AopBK the application crashes if microphone permission is denied. Also the app now requests microphone permission automatically on first open.

Hi @VladislavAntonyuk ,
Thank you for taking the time to review the code.
I had the same access-denied problem in my development environment until I changed the WindowsPackageType, as you did in the commit 780acfce

MFinkBK · 2026-05-12T09:03:04Z

@VladislavAntonyuk asking on behalf of my colleague @AopBK : Is there something we have to do here for this PR, or can it be merged? Along with my other two PRs that you recently merged it would be good if we can have all the bugfixes in one new CommunityToolkit.Maui release :-) Thanks!

VladislavAntonyuk · 2026-05-12T09:05:34Z

@MFinkBK The changes you made are not working. I see the error I shared on screenshot.

MFinkBK · 2026-05-12T09:07:40Z

@VladislavAntonyuk Ah sorry, we misunderstood your screenshot and your commit after that (switching to MSIX). We will take a look!

…ssions are granted has been improved.

AopBK · 2026-05-12T12:54:50Z

Hello @VladislavAntonyuk,
We improved the microphone permissions for unpackaged apps and added the webcam capability.

We also found that the unpackaged app can access the camera only if, in Windows Settings → Privacy & security → Camera, the option "Let desktop apps access your camera" is enabled.

VladislavAntonyuk reviewed Mar 10, 2026

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TheCodeTraveler requested a review from Copilot March 10, 2026 16:21

Copilot started reviewing on behalf of TheCodeTraveler March 10, 2026 16:22 View session

Copilot AI reviewed Mar 10, 2026

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Comment thread src/CommunityToolkit.Maui.Camera/Extensions/CameraViewExtensions.windows.cs

Comment thread src/CommunityToolkit.Maui.Camera/Extensions/CameraViewExtensions.windows.cs Outdated

TheCodeTraveler previously requested changes Mar 10, 2026

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dotnet-policy-service Bot added stale The author has not responded in over 30 days help wanted This proposal has been approved and is ready to be implemented labels Apr 28, 2026

VladislavAntonyuk added the needs discussion Discuss it on the next Monthly standup label Apr 30, 2026

AopBK force-pushed the fix/windows-camera-without-mic-permission branch from af24cab to 9e7e90e Compare April 30, 2026 11:52

Alberto Ortego Pérez added 2 commits April 30, 2026 14:36

fix: allow camera usage when microphone permission is denied on Windows

488ec53

revert: do not check the camera permission when initilizing the camera

7ec0b9e

AopBK force-pushed the fix/windows-camera-without-mic-permission branch from 9e7e90e to 7ec0b9e Compare April 30, 2026 12:37

TheCodeTraveler requested a review from Copilot May 7, 2026 18:13

Copilot started reviewing on behalf of TheCodeTraveler May 7, 2026 18:14 View session

Copilot AI reviewed May 7, 2026

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TheCodeTraveler assigned VladislavAntonyuk May 7, 2026

TheCodeTraveler removed help wanted This proposal has been approved and is ready to be implemented stale The author has not responded in over 30 days needs discussion Discuss it on the next Monthly standup labels May 7, 2026

Merge branch 'main' into fix/windows-camera-without-mic-permission

7250816

Merge branch 'main' into fix/windows-camera-without-mic-permission

742c102

VladislavAntonyuk requested changes May 10, 2026

View reviewed changes

Use msix, otherwise app.manifest is not found

780acfc

Merge branch 'main' into fix/windows-camera-without-mic-permission

77385a9

Alberto Ortego Pérez added 3 commits May 12, 2026 14:35

fix: ignore microphone capability for unpackaged apps

3e2163c

fix: in the camera view, the alert displayed when no microphone permi…

4c1f09b

…ssions are granted has been improved.

fix: Enable webcam capability for Windows camera access

2d106af

MFinkBK mentioned this pull request May 13, 2026

Fix Permission CTD for packaged/unpackaged apps using CameraView #3157

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