How can I call a *.dll file on a Mac?

Question

dave 2020-5-22

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/530363-how-can-i-call-a-dll-file-on-a-mac

评论： dave 2020-5-22

Hi Everyone,

I have attempted to look this up online and through documentation, but it is not clear to me whether it is even possilbe to call a *.dll on Matlab for Mac.

When I'm on a PC I use the following and this works fine...

            %r3dLibrary=
            R3Dloaded = libisloaded('MatlabR3D');  %check  if already loaded
            if ~R3Dloaded
                if isdeployed
                    loadlibrary('MatlabR3D', @MyMatlabR3D_D2);
                else
                    loadlibrary('MatlabR3D.dll', 'MatlabR3D.h');
                end
            end

However, when i run the same lines of code on mac matlab i get the following errors when executing the loadlibrary command:

Error using loadlibrary

There was an error loading the library "/Users/Dave/Google

Drive/MatlabScripts/calGUI/MatlabR3D.dll"

dlopen(/Users/Dave/Google Drive/MatlabScripts/calGUI/MatlabR3D.dll, 6): no suitable image found.

Did find:

/Users/Dave/Google Drive/MatlabScripts/calGUI/MatlabR3D.dll: unknown file type, first

eight bytes: 0x4D 0x5A 0x90 0x00 0x03 0x00 0x00 0x00

/Users/Dave/Google Drive/MatlabScripts/calGUI/MatlabR3D.dll: unknown file type, first

eight bytes: 0x4D 0x5A 0x90 0x00 0x03 0x00 0x00 0x00

Caused by:

Error using loaddefinedlibrary

dlopen(/Users/Dave/Google Drive/MatlabScripts/calGUI/MatlabR3D.dll, 6): no suitable image

found. Did find:

/Users/Dave/Google Drive/MatlabScripts/calGUI/MatlabR3D.dll: unknown file type, first

eight bytes: 0x4D 0x5A 0x90 0x00 0x03 0x00 0x00 0x00

/Users/Dave/Google Drive/MatlabScripts/calGUI/MatlabR3D.dll: unknown file type, first

eight bytes: 0x4D 0x5A 0x90 0x00 0x03 0x00 0x00 0x00

What do i need to do differently?

I would appreciate any help or guidance

Thanks

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Answer 1

James Tursa 2020-5-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/530363-how-can-i-call-a-dll-file-on-a-mac#answer_436423

dll's are compiled object code specific to the machine type they are compiled for. Are you trying to load the same dll file on your Mac that you used on your PC? That won't work. You need a different dll that is specifically compiled for the Mac.