Omega OMB-PER-488/W95, User Manual

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118 API Command Reference Personal488 User's Manual For Windows95 and Windows NT
Wait
Driver488/W95 only
Syntax
INT WINAPI Wait(DevHandleT devHandle);
devHandle refers to either an interface or an external device. If devHandle is an
external device, the
Wait
command acts on the hardware interface to which the
external device is attached.
Returns
-1 if error
Mode
Any
Bus States
Determined by previous Enter or Output command
Example
errorcode = Wait(ieee);
See Also
EnterX, OutputX, Buffered, Status
The
Wait
command causes Driver488 to wait until any asynchronous transfer has completed before
returning to your program. It can be used to guarantee that the data has actually been received before
beginning to process it, or that it has been sent before overwriting the buffer. It is especially useful
with the
Enter
command, when a terminator has been specified. In that case, the amount that is
actually received is unknown, and so your program must check with Driver488 to determine when the
transfer is done. Time out checking, if enabled, is performed while
Wait
ing.