GUI .exe doesn't work fully, while the .m file has no problems.

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david gold 2014-7-15

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评论： david gold 2014-7-17

Hello,

I wrote a GUI in Matlab 2013a which uses the Data Acquisition Toolbox. One of the functions of this GUI is to record sound using the laptop/PC microphone ('winsound') or a NIDAQ USB 6008.

I'm trying to run the .exe on a PC which doesn't have Matlab installed (by installing the matlab runtime 8.1), but one of the functions (the function which records sound) doesn't work. I have no idea why.

BTW, if I install Matlab on the PC of interest, it works. Very strange. When I remove Matlab from the PC, the problem occurs again.

I took a screenshot of the command prompt and the error which is displayed:

The error happens only when I press the 'Start recording' push button. All the other functions/buttons etc. work fine.

Does anybody have an idea why this is happening?

David.

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Answer 1

Mukul Rao 2014-7-15

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编辑：Mukul Rao 2014-7-15

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Hi,

I think the reason why the application you built is not functioning on a PC without MATLAB is because the Matlab Runtime is unable to locate the dynamic library file “mwwinsound.dll” . I would suggest running your application after copying this .dll file to your application directory.

You can also rebuild your app after including commands like

>> daqregister('winsound');
>> daqhwinfo

These commands would let you know if the windows sound card is being successfully detected by the MCR.

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david gold 2014-7-17

Thank you very much. I entered these lines into the code and matlab told me that I don't have full administrator rights to register the winsound adapter.

I ran the .exe as administrator and it worked.

Thank you again!

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