Resizes a CXlArray object and initializes its members to zero
void AllocInit( size_t cRows, size_t cCols );
The number of rows a newly created array object should contain.
The number of columns a newly created array object should contain.
The array will be resized and all its values will be set to zero.
If memory allocation fails, then an exception of type CXlMemoryAllocationFailedException will be thrown. Since this exception is derived from CXlRuntimeException, it will be caught by the add-in wrapper function when this method is called from within an add-in function.