Measurement Computing Personal488 rev.3.0 - Manual (Page 85)

Personal488 for Windows 95/98/Me/NT/2000 04-10-01 API Reference 6-17
Enter
Syntax LONG WINAPI Enter(DevHandleT devHandle, LPBYTE data)
Remarks Enter is equivalent to the following call to EnterX :
EnterX(devHandle,data,sizeof(data),1,0L,0,0L);
The Enter function passes the device handle and a pointer to the data buffer to the EnterX function. It
determines the size of the data buffer that you provided, and passes that value as the count parameter. It
specifies forceAddr is TRUE , causing Driver488 to re-address the device. The default terminators are
chosen by specifying a 0 as the term parameter. Asynchronous transfer is turned off by sending 0 for the
async parameter, and the completion status value is ignored by sending 0 for the compStat parameter.
EnterN
Syntax LONG WINAPI EnterN(DevHandleT devHandle,LPBYTE data,int
count)
Remarks EnterN is equivalent to the following call to EnterX :
EnterX(devHandle,data,count,1,0L,0,0L);
The EnterN function passes the device handle, the pointer to the data buffer, and the size of the data buffer
to the EnterX function. It specifies forceAddr is TRUE , causing Driver488 to re-address the device. The
default terminators are chosen by specifying a 0 pointer as the term parameter. Asynchronous transfer is
turned off by sending 0 for the async parameter, and the completion status value is ignored by sending 0
for the compStat parameter.
EnterMore
Syntax LONG WINAPI EnterMore(DevHandleT devHandle,LPBYTE data)
Remarks EnterMore is equivalent to the following call to EnterX :
EnterX(devHandle,data,sizeof(data),0,0L,0,0L);
The EnterMore function passes the device handle and the pointer to the data buffer to the EnterX
function. It determines the size of the data buffer that you provided, and passes that value as the count
parameter. It specifies forceAddr is FALSE , therefore Driver488 does not address the device if it is the
same device as previously used. The default terminators are chosen by specifying a 0 as the term
parameter. Asynchronous transfer is turned off by sending 0 for the async parameter, and the completion
status value is ignored by sending 0 for the compStat parameter.
EnterNMore
Syntax LONG WINAPI EnterNMore(DevHandleT devHandle,LPBYTE data,int
count);
Remarks EnterNMore is equivalent to the following call to EnterX :
EnterX(devHandle,data,count,0,0L,0,0L);
The EnterNMore function passes the device handle, the pointer to the data buffer, and the size of the data
buffer to the EnterX function. It specifies forceAddr is FALSE ; therefore, Driver488 does not address the
device if it is the same device as previously used. The default terminators are chosen by specifying a 0 as
the term parameter. Asynchronous transfer is turned off by sending 0 for the async parameter, and the
completion status value is ignored by sending 0 for the compStat parameter.