Determine number of rows in matrix signal
int gsr_DataTypeSize(SL_SigRegion *reg)
regSignal region.
An int representing the number of rows if the data in the
signal region is a matrix. -1 if the data in the signal region is
not a matrix.
Returns the number of rows if the data in the signal region corresponds to a
matrix signal. Returns -1 if the signal region does not
correspond to a matrix signal.
C, C++
See the S-function barplot.c.