gmane.comp.programming.swig

Re: Welcome to the "Swig-user" mailing list

Hi,

I have to use a DLL from Java using JNI (JNA will not work < Java 1.4). So I have to write a WrapperDLL offers me a
JNI Interface to the DLL. The problem is a function like this:

int myProblemFunction(int inInt, myStruct** mst)

The struct looks like this:

typedef struct _mStruct{
	int var1;
	int var2;
	void* pointer;
} myStruct;

Is the only way to get the function working (using SWIG) to write a typemap? Or is there an easy to use solution
for this problem?

BTW: what would you call mst? Doublepointer?

Thanks a lot,
Best regards
Matthias Bilger

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William S Fulton | 4 Dec 23:12

Re: Welcome to the "Swig-user" mailing list

Bilger, Matthias wrote:
> Hi,
> 
> I have to use a DLL from Java using JNI (JNA will not work < Java 1.4). So I have to write a WrapperDLL offers me a
JNI Interface to the DLL. The problem is a function like this:
> 
> int myProblemFunction(int inInt, myStruct** mst)
> 
> The struct looks like this:
> 
> typedef struct _mStruct{
> 	int var1;
> 	int var2;
> 	void* pointer;
> } myStruct;
> 
> Is the only way to get the function working (using SWIG) to write a typemap? Or is there an easy to use
solution for this problem?
> 
> BTW: what would you call mst? Doublepointer?
> 
"pointer to pointer" is the search term you need and there is some 
advice in the Java.html chapter.

William

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