Passing pointer argument in MATLAB to a C-DLL function foo(char**)

Question

I am writing a C-DLL to be called from MATLAB. Is it possible to call a function with const char ** parameter? e.g.

void myGetVersion( const ch         


        

Answer 1

Looking at Working with pointers, section Passing an Array of Strings in the MATLAB documentation (linked from the help page you linked in your question), it seems you need to construct a libpointer object in MATLAB, something like

version = libpointer('stringPtrPtr',{''}); %# corrected according to Amro's comment
calllib('yourCdll', 'myGetVersion', version)

(I don't have a DLL to test this with right now, and I'm not very firm on C pointers, so no guarantee... hope this is a step in the right direction)