B&B Electronics PC Watchdog Timer Card ATXWDT Benutzerhandbuch

Documentation Number ATxWDT-1303

B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

Command Reference

BBPCWDT_Startup

Purpose:

Begin communications with the watchdog timer.

C Syntax:

HANDLE BBPCWDT_Startup(void);

BASIC
Syntax:

Function BBPCWDTStartup () As Long

Remarks:

This function reads the watchdog timer’s I/O port
value that the setup program stored in the registry
for Windows 95 / NT or in the file, PCWDT.INI, for
Windows 3.11. The Windows NT version of this
function

establishes

communications

with

the

PCWDT device driver. The Windows 3.11 / 95
version of this function just returns a handle that is
used with the other functions in this section to
communicate with the watchdog timer.

Return Value:

On error, INVALID_HANDLE_VALUE is returned
otherwise a handle to the watchdog timer is
returned.

BBPCWDT_Shutdown

Purpose:

Terminate

communications

with

the

watchdog

timer.

C Syntax:

BOOL BBPCWDT_Shutdown(HANDLE hDev);

BASIC
Syntax:

Function BBPCWDTShutdown (ByVal hDev
As Long) As Byte

Remarks:

hDev is the handle to the watchdog timer that was
returned by BBPCWDT_Startup. The Windows NT
version of this function closes the communications
to the PCWDT device driver.

Return Value:

TRUE (non-zero) if successful, otherwise FALSE
(zero).