Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario descargar pdf (Pagina 85)

OC_GetScannerInitInfo Library of Routines 6–31

Publication 1747-6.5.3 June 1998

OC_GetScannerInitInfo This function retrieves current information about the shared memory partitioning.

Syntax:

int OC_GetScannerInitInfo(HANDLE handle, OCINIT *scaninit);

Parameters:

Description:

If the scanner has not been initialized, OC_GetScannerInitInfo returns an error.

If the scanner has been previously initialized, an application can retrieve the current scanner partitioning

information with this function instead of resetting and re-initializing the scanner.

The

OCINIT structure us defined as:

typedef struct tagOCINIT

{

WORD OutputImageSize; /* size in bytes */

WORD InputImageSize; /* size in bytes */

WORD HostRetentiveDataSize; /* size in bytes */

} OCINIT;

Return Value:

Considerations:

Supported in the DOS API library and the Windows NT API library

Parameter: Description:

handle

Must be a valid handle returned from OC_OpenScanner

scaninit

Points to the structure that contains the initialization information this

function returns

Name: Value: Description:

SUCCESS

scanner initialization information was retrieved successfully

ERR_OCACCESS

handle does not have access to the scanner

ERR_OCINIT

scanner has not been initialized, see OC_InitScanner

ERR_OCPOST

scanner POST failed, see OC_GetScannerStatus

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 154 155

Sin comentarios

Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario Pagina 85