Bb-electronics PC Watchdog Timer Card ATRWDT Manual de usuario descargar pdf (Pagina 17)

16 Documentation Number ATxWDT-1303

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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).

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Bb-electronics PC Watchdog Timer Card ATRWDT Manual de usuario Pagina 17