ProSoft Technology MVI69-ADM - Manual (Page 165)

MVI-ADM ♦ 'C' Programmable Application Development Function Library - ADM API
'C' Programmable Application Development Module Developer's Guide
ProSoft Technology, Inc. Page 165 of 342
February 20, 2013
ADM_DBXOR_Byte
Syntax
int ADM_DBXOR_Byte(ADMHANDLE adm_handle, int offset, unsigned char bval)
Parameters
adm_handle Handle returned by previous call to ADM_Open
offset Byte offset into database
bval Bit mask to be XORed with the byte at offset
Description
This function XORs a byte in the database with a byte-long bit mask.
adm_handle must be a valid handle returned from ADM_Open.
Return Value
ADM_SUCCESS No errors were encountered
ADM_ERR_NOACCESS adm_handle does not have access
ADM_ERR_MEMORY database is not allocated
ADM_ERR_REG_RANGE offset is out of range
Example
ADMHANDLE adm_handle;
int offset;
unsigned char bval = 0x55;
ADM_DBXOR_Byte(adm_handle, offset, bval);