Prosoft-technology MVI69-ADM Uživatelský manuál stáhnout pdf (Strana 123)

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MVI-ADM ♦ 'C' Programmable Application Development Function Library - ADM API

'C' Programmable Application Development Module Developer's Guide

ProSoft Technology, Inc. Page 123 of 342

February 20, 2013

7.2 ADM API Initialization Functions

ADM_Open

Syntax

int ADM_Open(ADMHANDLE *adm_handle);

Parameters

adm_handle

Pointer to variable of type ADMHANDLE

Description

ADM_Open acquires access to the ADM API and sets adm_handle to a unique

ID that the application uses in subsequent functions. This function must be called

before any of the other API functions can be used.

IMPORTANT: After the API has been opened, ADM_Close should always be called before exiting

the application.

Return Value

ADM_SUCCESS

API was opened successfully

ADM_ERR_REOPEN

API is already open

ADM_ERR_NOACCESS

API cannot run on this hardware

Note: ADM_ERR_NOACCESS will be returned if the hardware is not from ProSoft Technology.

Example

ADMHANDLE adm_handle;

if(ADM_Open(&adm_handle) != ADM_SUCCESS)

{

printf("\nFailed to open ADM API... exiting program\n");

exit(1);

}

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