How would this code look in LabVIEW?

Question

Hello,
I am new to LabVIEW and I'm hoping that someone can tell me what the code would look like in LabVIEW if I want to do the following.....
I am using a C dll that has the "acq_get_board_count()" function and so far I am able to get that to work, however I'm having issues with passing the array of clusters from LabVIEW to the C dll
short count , code;
MyStruct_board_info *board_info_list;
count = acq_get_board_count();
if (count){board_info_list = new MyStruct_board_info[count];
code = acq_get_board_info(count, board_info_list);
}else{// no interface card installed}**************************************************​***************************** 
my C structure looks like the following:
struct MyStruct_board_info
char name[32]; 
short type;
char en_first_gain; 
long first_gain_min; 
char computer_ctrl;
char pad[3]; 

Answer 1

One trick I found is to right-click the call library function node and select "create .c file" and examine what it will create.  I used the method that nathand used to generate the cluster using array to cluster to embed the array contents as values.  After you build the array of clusters, I think you will have to pass in element zero.  If you pass in the whole array and look at the c-code, it will still embed a 4-byte size field in the struct and this will whack your dll.
Use adapt to type in your call library function node.  The pictured code generates the following c-code:
/* Call Library source file */#include "extcode.h"/* Typedefs */typedef struct { double Array0;double Array1; double Array2;double Array3; double Array4;double Array5; double Array6;double Array7; double Array8;double Array9; double Array10;double Array11; double Array12;double Array13; double Array14;double Array15; double Array16;double Array17; double Array18;double Array19; double Array20;double Array21; double Array22;double Array23; double Array24;double Array25; double Array26;double Array27; double Array28;double Array29; double Array30;double Array31; } TD2;typedef struct { TD2 Array;
uint32_t Numeric;
} TD1;void CIELChToDE94(TD1 *arg1);
Attachments:
Call dll with cluster.png ‏9 KB