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problem in running a m-file

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Mahnaz
Mahnaz 2012-10-26
关闭： MATLAB Answer Bot 2021-8-20
Hello
I have a m-file(comdll.m) with following functions:
tic
loadlibrary('comdll','comheader');
calllib('comdll','initialize',1,1);
unloadlibrary('comdll');
toc
when I run this m-file i see in command window:
>> comdll
Mex file entry point is missing. Please check the (case-sensitive)
spelling of mexFunction (for C MEX-files), or the (case-insensitive)
spelling of MEXFUNCTION (for FORTRAN MEX-files).
??? Invalid MEX-file 'C:\...comdll.dll': .
what is the problem?

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回答（3 个）

Kaustubha Govind
Kaustubha Govind 2012-10-26
You should probably rename your .m file (comdll.m) so that it doesn't clash with commdll.dll. If you type which commdll in the MATLAB command window, you should see that it is picking up the DLL over your MATLAB script. This is because in older versions of MATLAB, MEX functions used to have .DLL extensions on Windows.
Jan
Jan 2012-10-26
编辑：Jan 2012-10-26
"comdll" is the name of the DLL and of the M-file? I'd try to use different names at first. It seems like Matlab tries to execute the DLL as Mex-function.
Mahnaz
Mahnaz 2012-10-26
thanks
i renamed the m-file and it doesn't have any problem.

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