Rockwell Automation 1747-PCINT API Software for 1746 I/O - Manual (Page 76)

6–22 Library of Routines OC_GetDeviceInfo
Publication 1747-6.5.3 June 1998
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 */
WORD ScannerMemory; /* dual-port memory access */
WORD ControlIo; /* PCIS control registers address */
WORD 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