38.9.4.33 Getting Result of Queuing Device Read/Write
Request
Asks to check whether the device access to
ExecuteQueuingAccess() succeeded or not after
ExecuteQueuingAccess() is called.
Function Name
INT WINAPI
IsQueuingAccessSucceeded(INT iIndex);
Argument
iIndex: (In) Request
check on number
When BeginQueuingWrite() or BeginQueuingRead() is called, API
for device access is called several times to queue the device
access requests until ExecuteQueuingAccess() is called. However,
the actual device access results are only available after
ExecuteQueuingAccess() is executed.
To find out the result of device access, indicates a request
number (a number from 0) of the device after ExecuteQueuingAccess()
is executed.
Return value (NULL)
XX: Error Code
0: Device access to the specified number was successful.
Special Item
For example:
BeginQueuingWrite();
WriteDevice16("Node1","LS100",Data,10);
WriteDevice16("Node1","LS200",Data,10);
WriteDevice16("Node1","LS300",Data,10);
ExecuteQueuingAccess()
To check whether access to "LS200" in "Node 1" was successful
with the above registration, use IsQueuingAccessSucceeded(1).
If 0 is returned, the access was successful.
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