LabVIEW
fatal internal error: error "thevent.cpp"
I'm getting this error trying to create a wrapper for a DLL.
I created a cluster of an array of CHAR (8 bit unsigned) and a WORD (16 bit unsigned).
I created a cluster of an array of the previous cluster and an integer.
I'm trying to mimic the code here:
// receives list of supported board types
DL615_SUPPORTED_BOARD_LIST boardList;
// obtain list of supported board types
dl615_get_supported_boards(&boardList);
Where DL615_SUPPORTED_BOARD_LIST is a struct of type:
typedef struct
{
INT numBoardTypes;
DL615_SUPPORTED_BOARD boardType[32];
} DL615_SUPPORTED_BOARD_LIST;
and
typedef struct
{
CHAR desc[32];
WORD type;
} DL615_SUPPORTED_BOARD;
@NelsonUWP wrote:
I'm getting this error trying to create a wrapper for a DLL.
I created a cluster of an array of CHAR (8 bit unsigned) and a WORD (16 bit unsigned).
I'm trying to mimic the code here:
// receives list of supported board types
DL615_SUPPORTED_BOARD_LIST boardList;// obtain list of supported board types
dl615_get_supported_boards(&boardList);
Where DL615_SUPPORTED_BOARD_LIST is a struct of type:
typedef struct
{
INT numBoardTypes;
DL615_SUPPORTED_BOARD boardType[32];
} DL615_SUPPORTED_BOARD_LIST;
and
typedef struct
{
CHAR desc[32];
WORD type;
} DL615_SUPPORTED_BOARD;
Sadly, the array inside the cluster wont work for labview, it will turn it into a pointer. If you feed in an array of U8s, 4+32*(1*32+2) long (int + 32 of (32 char + word)), it shouldn't give you grief. but your output will come back as an array of U8s, so you will have to decode it. (first 4 U8s make the Int, next 32 are the name of the first, next two is the word for the first, then the second, etc.)
I tried that yesterday and if my math is correct I'd be looking at a single array of 1092 U8s.
I've tried using both stdcall (WINAPI) and C for the calling convention. Some of which crash LabVIEW without popups some of which crash with the ThEvent.cpp dialog shown above. I've also tried different data types. Nothing.
Ok, so I decided to be smart about this and output an array rather than adapting to type.
I'm actually getting data from this, I don't know if it's the correct data yet, but data is better than crashing.
