From 6f87e947ff4cd6e84d8d9004d46a6c36c632c3bf Mon Sep 17 00:00:00 2001
From: Alex Mihaiuc <69110671+foxmsft@users.noreply.github.com>
Date: Thu, 5 Feb 2026 02:01:10 +0100
Subject: [PATCH] ZoomIt: close the virtual microphone on stop (#45386)

This is not a leak per se, but closing the virtual microphone when
recording stops is a good thing to do.
Also bump ZoomIt's version to 10.1.

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request

This is a code quality addition, not a real bug per se - ZoomIt holds
one reference to a virtual microphone stream, thus causing the
notification area (system tray) microphone symbol always show ZoomIt as
"recording" even after stopping a screen recording in ZoomIt.
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## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
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for new binaries
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for new binaries and localization folder
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and link it here: #xxx

<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

It's sufficient to just notice that:

- Audio recording still works.
- The notification area / system tray microphone notification is active
while screen recording.
- That notification disappears after stopping the ZoomIt screen capture
session.
-
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
---
 src/modules/ZoomIt/ZoomIt/AudioSampleGenerator.cpp | 8 ++++++++
 src/modules/ZoomIt/ZoomIt/ZoomIt.rc                | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/modules/ZoomIt/ZoomIt/AudioSampleGenerator.cpp b/src/modules/ZoomIt/ZoomIt/AudioSampleGenerator.cpp
index fecdca4356..b3b0ed373f 100644
--- a/src/modules/ZoomIt/ZoomIt/AudioSampleGenerator.cpp
+++ b/src/modules/ZoomIt/ZoomIt/AudioSampleGenerator.cpp
@@ -311,6 +311,14 @@ void AudioSampleGenerator::Stop()
     // Stop the audio graph - no more quantum callbacks will run
     m_audioGraph.Stop();
 
+    // Close the microphone input node to release the device so Windows no longer
+    // reports the microphone as in use by ZoomIt.
+    if (m_audioInputNode)
+    {
+        m_audioInputNode.Close();
+        m_audioInputNode = nullptr;
+    }
+
     // Mark as stopped
     m_started.store(false);
 
diff --git a/src/modules/ZoomIt/ZoomIt/ZoomIt.rc b/src/modules/ZoomIt/ZoomIt/ZoomIt.rc
index 6fe01af2bb..d3c5210744 100644
--- a/src/modules/ZoomIt/ZoomIt/ZoomIt.rc
+++ b/src/modules/ZoomIt/ZoomIt/ZoomIt.rc
@@ -121,7 +121,7 @@ FONT 8, "MS Shell Dlg", 0, 0, 0x0
 BEGIN
     DEFPUSHBUTTON   "OK",IDOK,186,306,50,14
     PUSHBUTTON      "Cancel",IDCANCEL,243,306,50,14
-    LTEXT           "ZoomIt v10.0",IDC_VERSION,42,7,73,10
+    LTEXT           "ZoomIt v10.1",IDC_VERSION,42,7,73,10
     LTEXT           "Copyright \251 2006-2026 Mark Russinovich",IDC_COPYRIGHT,42,17,251,8
     CONTROL         "<a HREF=""https://www.sysinternals.com"">Sysinternals - www.sysinternals.com</a>",IDC_LINK,
                     "SysLink",WS_TABSTOP,42,26,150,9