Call library function with third party DLL typedef struct

[gimongreg007]

Hi all,

I am struggling with a third party dll and using the call library function. There is a handle type called 'typedef struct tagST25R3911HANDLE {} * ST25R3911HANDLE; 'that is used in most of the functions. When I used the import shared library wizard labview converted it to an empty cluster structure and made it adapt to type. I can't figure out what to make of this. I've tried a few different data types, but keep getting a 1097 error. Anybody have any ideas?

[gimongreg007]

Update: figured out the problem. Had to pull a value from another function for handle value.

[JAndrews]

Hi gimongreg007,

I know this thread is a from a few years ago. I am having the same issue with this same dll.

How did you get the value for the handle?

Regards

John

[rolfk]

Try to change this in the header file:

typedef struct tagST25R3911HANDLE {} * ST25R3911HANDLE;

into

typedef void * ST25R3911HANDLE;

That should probably let the import library wizard be happy.

It should generate a Numeric, Pointer sized (unsigned) Integer for this parameter.