inputdlg() now crashes.

My program has been running fine for months. I updated Windoze 11 as MS kept bugging me to do and now inputdlg() doesn't work. After much frustration looking at my program I isolated it by just trying

answer = inputdlg("Enter a Mouse Name","Mouse Name",[1 30],"JUNK");

at the command line and the box pops up and then the program hangs. Appdesigner is dead, MATLAB is dead the only recourse it Task Manager kill!

[Gavin]

Screen capture and Window capture attached. Note Window(z) completed dialog and is now empty.

[dpb]

First make sure to have any MATLAB and Windows updates installed just in case there was some known issue in one of those.

Did the symptom also come with the move to R2025a or was it running before on R2025a?

Any chance of having an earlier release of MATLAB still installed that could test?

It none of the above resolves the issue, submit this to Mathworks as an official support request/bug at <Product Support Page>

[Star Strider]

This sort of idiocy in Micro$oft's part is one of the reasons I upgraded to Linux (Ubuntu 24.04).

I suggest that you consider doiing the same. It's free, it's well-supported, and it actually works (much better than whatever Micro$oft is doing these days). Firefox and Thunderbird work well with it, as does MATLAB.

That doesn't immediately solve your problem, however it definitely points you in the correct direction!

[shantanu]

Hi @Gavin,

I tried this below mentioned command only on command window. I am also using MATLAB R2025a and windows 11 and it worked fine for me without any crashes or errors. Could you tell me more about your workflow or what led to this crash.

 answer = inputdlg("Enter a Mouse Name","Mouse Name",[1 30],"JUNK");

[Gavin]

Updating Windows caused the problem Insert the above line into Command window and it runs then locks up MATLAB. Latest Windows update?

Device Name DESKTOP-G4BH57B

Processor Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz 3.30 GHz

Installed RAM 8.00 GB (7.88 GB usable)

Storage 466 GB SSD Samsung SSD 870 EVO 500GB

Graphics Card Intel(R) HD Graphics (32 MB)

Device ID 242AA719-A9C7-4A6D-B702-5063A019C8E1

Product ID 00330-50000-00000-AAOEM

System Type 64-bit operating system, x64-based processor

Pen and touch No pen or touch input is available for this display

Event Log Critical

0x3D55: Package family Microsoft.Edge.GameAssist_8wekyb3d8bbwe runtime information is corrupted. Attempting to correct the issue.

I don't want ANY games. How to kill this?

[Gavin]

Or is it this one?

Log Name: System

Source: Microsoft-Windows-DistributedCOM

Date: 8/18/2025 3:32:48 PM

Event ID: 10016

Task Category: None

Level: Warning

Keywords: Classic

User: DESKTOP-G4BH57B\CPSLab

Computer: DESKTOP-G4BH57B

Description:

The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID

{2593F8B9-4EAF-457C-B68A-50F6B8EA6B54}

and APPID

{15C20B67-12E7-4BB6-92BB-7AFF07997402}

to the user DESKTOP-G4BH57B\CPSLab SID (S-1-5-21-1975001305-1172379909-604540765-1002) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool.

Event Xml:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

<System>

<Provider Name="Microsoft-Windows-DistributedCOM" Guid="{1B562E86-B7AA-4131-BADC-B6F3A001407E}" EventSourceName="DCOM" />

<EventID Qualifiers="0">10016</EventID>

<Version>0</Version>

<Level>3</Level>

<Task>0</Task>

<Opcode>0</Opcode>

<Keywords>0x8080000000000000</Keywords>

<TimeCreated SystemTime="2025-08-18T20:32:48.2279001Z" />

<EventRecordID>14680</EventRecordID>

<Correlation ActivityID="{dcd28f13-893c-49df-92c0-2360266ac7c4}" />

<Execution ProcessID="460" ThreadID="4416" />

<Channel>System</Channel>

<Computer>DESKTOP-G4BH57B</Computer>

<Security UserID="S-1-5-21-1975001305-1172379909-604540765-1002" />

</System>

<EventData>

<Data Name="param1">application-specific</Data>

<Data Name="param2">Local</Data>

<Data Name="param3">Activation</Data>

<Data Name="param4">{2593F8B9-4EAF-457C-B68A-50F6B8EA6B54}</Data>

<Data Name="param5">{15C20B67-12E7-4BB6-92BB-7AFF07997402}</Data>

<Data Name="param6">DESKTOP-G4BH57B</Data>

<Data Name="param7">CPSLab</Data>

<Data Name="param8">S-1-5-21-1975001305-1172379909-604540765-1002</Data>

<Data Name="param9">LocalHost (Using LRPC)</Data>

<Data Name="param10">Unavailable</Data>

<Data Name="param11">Unavailable</Data>

</EventData>

</Event>

[Gavin]

I found out that JAVA wasn't running so I installed it to no avail.

I put in a support request with more details as I tried everything I could think of

My Support Cases 08020753 inputdlg() fails to complete after a Windoze update last week

[Gavin]

I've uninstalled and reinstalled MATLAB to no avail. figure and dialog and uialerts all work fine it's just that I think inputdlg() goes out to Windows to do it's thing and maybe needs JAVA?

JAVA also reinstalled (before MATLAB reinstall but MATLAB still won't use it.

>> jenv

ans =

JavaEnvironment with properties:

Version: "Java is not enabled"

Home: "Java is not enabled"

Library: "Java is not enabled"

Status: notloaded

Configuration: "factory"

Is this the problem and if so how do I fix that? Support in India can't figure it out.

[Gavin]

questdlg(...) also fails

uialert(...) works fine

prompt = "Test"

input(prompt,'s') works, oddly input(prompt) fails even though 's' is supposed to be optional!

Not useful in an App Designed APP since the prompt is in the command window, not my app.

Also returned answer is in a different format so I'd have to rewrite more of the program.

Anything else I should try? Remember I have to kill and restart MAATLAB for each thing I try. It takes a while. Especially 2025a takes a long time to start up.

[Stephen23]

"Anything else I should try?"

Contact technical support: https://www.mathworks.com/support/contact_us.html

[Gavin]

Nobody can reproduce it! I guess someone needs to look at my system logs and or figure out how to get JAVA to load properly on a new install if that is in fact the problem.

Does inputdlg() use JAVA to finish?

>> jenv

ans =

JavaEnvironment with properties:

Version: "Java is not enabled"

Home: "Java is not enabled"

Library: "Java is not enabled"

Status: notloaded

Configuration: "factory"

[Torsten]

The support from other software companies usually offers remote access to your computer in order to diagnose the problem. Isn't that possible with MATLAB support in order to reproduce the problem ? Or don't you want to allow access ?

[Gavin]

I'm happy to allow access to that machine (when I am there) No one has asked, and I'm not in that lab everyday. I am a programmer for several labs and companies so I'm not on that job every day (which is why they keep closing my case as I don't respond instantly.)

I'd love to get JAVA to work with MATLAB (if that's the issue) That is the only machine where >>jenv shows it is not installed. is there a problem with 1.8.0.461?

My other system has

>> version -java

ans =

'Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode'

Which I think may be the MATLAB included version from 2024b. Most of my systems are 2024b I'd have to check if any others have been updated to 2025a

[Image Analyst]

Well, when you're there, call tech support and set up a screen sharing session so they can debug it and fix it for you.

[Martijn]

I have a similar issue (R2025A on Windows 11). My codes used to run on R2024 on Windows 10 without any issue. After migrating to Windows 11 and installing R2025A, my codes hangs anytime I call drawnow. I noticed that drawnow is also in the inputdlg code.

Update: A computer reboot did the trick in my case.

Answer 1

[Manan]

Thank you for bringing this to our attention. If you or anyone else encounters this crash issue, please reach out to MathWorks Technical Support with the details. Our team will be happy to assist you further.

[Gavin]

I upgraded to MATLAB 2025 (a and then b) and this particular issue has not returned. However now I get a crash (which I have reported several times) when a button is pressed and the button color is changed. Occurs randomly maybe 10% of the time, I haven't counted. Not every crash offers me to report it when I close it with Task Manager. Have a look at my crash reports and associated emails.