/* Gamelon(tm) File I/O Library Sample Code C++ Language */
/* (C)1994 Menai Corporation(tm) Released for public use */
/* Example 10a. How to use a Cursor to scan objects in */
/* the top level of an aggregate. */
/* Simple Next and Prior commands can scan across all */
/* the objects on a single level within an aggregate */
/* object. If the cursor starts on the first object */
/* within an aggregate, the Cursor can use a loop with */
/* a Next call to scan each and every object in the */
/* aggregate. For example, if the programmer wished to */
/* set a particular class number for every object in */
/* an aggregate, he or she would use the following */
/* code: */
#include <stdlib.h>
#include "gfcursor.hpp"
int main(void) {
unsigned long classnum = 4000000;
int answer;
int valid;
CURSOR *c = new CURSOR("newfile");
c>eCursorQueryValid(&valid);
if (!valid)
exit(1);
/* Check that the file has contents. */
c>eObjQueryAggregateEmpty(&answer);
if (answer)
exit(1);
c>eCursorMoveIn();
c>eCursorMovePreFirst();
while (c>eCursorMoveNext() == 0) {
c>eAltModify();
c>eObjSetClass(classnum);
c>eAltCommit();
} /* end while */
delete c;
return 0;
}
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