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GetBufferInfo
BOOLEAN GetBufferInfo(
IN HANDLE Handle,
OUT PULONG Overflow,
OUT PULONG PercentFull
);
Parameters
Handle
Handle of the library
Overflow
This value will increment each time the input buffer
overruns. This
happens if the rate at which the driver fills the buffer exceeds the
rate at
which it is read by the application. If a buffer overflow occurs all
data in
that buffer is lost. This value is reset automatically at Start()
and Stop().
PercentFull
Can be anything between 0 and 100%. Used to indicate
the
amount of samples available to the application. If 100% is reached the Overflow
will increment and the PercentFull parameter will be reset to
0. In that case
one buffer of samples is lost. If this percentage increases during a
measurement, the application cannot keep up with the data rate of the
drivers.
To prevent data loss the application can increase its thread priority,
or use a larger buffer when calling GetSamples.
Return Value
If successful this function returns TRUE. If the function return FALSE, use GetErrorCode to get the error code.
Comments
This function only works after Start() is called and before Stop()
is called.
Also see