Rockwell-automation 1747-PCIS API Software - Open Controller Instrukcja Użytkownika Pobierz pdf (Strona 78)

Publication 1747-UM002A-US-P - June 2000

6-18 Library of Routines

OC_GetDeviceInfo

OC_GeDeviceInfo returns information about the scanner device.

Syntax:

int OC_GetDeviceInfo(HANDLE handle, OCDEVICEINFO *devinfo);

Description:

The OCDEVICEINFO is defined as:

{

WORD ScannerType;/* scanner device type */

WORD ScannerIrq;/* allocated interrupt */

DWORD ScannerMemory;/* dual-port memory access */

WORD ControlIo;/* PCIS control registers address */

DWORD SRAM_Size/* size of available SRAM in bytes */

} OCDEVICEINFO;

handle must be a valid handle returned from OC_OpenScanner.

Return Value:

Considerations:

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

Description:

HANDLE Handle;

OCDEVICEINFO devinfo;

/* display size of available SRAM */

OC_GetDeviceInfo(Handle, &devinfo);

printf(“SRAM Size is %ld bytes\n”, devinfo.SRAM_Size);

Name: Description:

SUCCESS The extended error information was read successfully.

ERR_OCACCESS

handle does not have access to scanner

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Rockwell-automation 1747-PCIS API Software - Open Controller Instrukcja Użytkownika Strona 78