B&B Electronics I-7565-H2 - Manual - Manual (Page 57)

5.7 Software Buffer Function
When users’ program receives CAN messages, these received CAN
messages will be saved in software buffer provided by VCI_CAN library
first and users need to use “VCI_RecvCANMsg” function to get these
received CAN messages saved in software buffer. The software buffer
size is 65536 for each CAN port.
5.7.1 VCI_Get_RxMsgCnt
This function is used to get the count of these received CAN
messages saved in software buffer that are not received by users’
program in the assigned CAN port.
Syntax :
int VCI_Get_RxMsgCnt (
BYTE CAN_No,
DWORD* RxMsgCnt
);
Parameter :
CAN_No:
[in] The assigned CAN port number.
RxMsgCnt:
[out] The pointer is used to receive the CAN message count saved in
software buffer.
Return Values :
Return 0 means success, others means failure.
Examples :
Int Ret;
BYTE CAN_No;
DWORD RxMsgCnt;
CAN_No=1;
Ret = VCI_Get_RxMsgCnt(CAN_No, &RxMsgCnt); // Recv RxMsg count
I-7565-H1/H2 High Speed USB/CAN Converter User’s Manual (Ver 1.1, Nov/2009) ------------- 57