Sys Tec Electronic USB-CANmodul - Using Callback Functions

Software
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SYS TEC electronic GmbH 2001 L-487e_6
63
3.2.6 Using the Callback Functions
The USBCAN32.DLL provides two callback functions.
UcanConnectControlFkt
Syntax:
void STDCALL UcanConnectControlFkt (BYTE bEvent_p , DWORD
dwParam_p);
Parameter:
bEvent_p: Event which occurred.
USBCAN_EVENT_CONNECT
USBCAN_EVENT_DISCONNECT
USBCAN_EVENT_FATALDISCON
dwParam_p: Additional parameter
If bEvent p = 8, then the parameter is
returned from the USB-CAN-Handle of the
disconnected module. No messages are
received from this module and no messages
can be sent. The corresponding USB-CAN-
Handle is invalid; in other instances, the
parameter is 0.
Description:
This callback function informs the application program if a new USB-
CANmodul is connected to the PC, or a connected USB-CANmodul
has been disconnected.
UcanCallbackFkt
Syntax:
void STDCALL UcanCallbackFkt (tUcanHandle UcanHandle_p,
BYTE bEvent_p);
Parameter: