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 | 1 | initial version |
RETR_EXTERNAL does, what its name says: it only returns the most outer contour.
to traverse a hierachy of nested contours, use RETR_TREE instead.
also, have a look at the docs, again
| | 2 | No.2 Revision |
RETR_EXTERNAL does, what its name says: it only returns the most outer contour.
to traverse a hierachy of nested contours, use RETR_TREE or RETR_CCOMP instead.
also, have a look at the docs, again
| | 3 | No.3 Revision |
RETR_EXTERNAL does, what its name says: it only returns the most outer contour.contour. (there is no hierarchy)
to traverse a hierachy of nested contours, use RETR_TREE or RETR_CCOMP instead.
have a look at the docs, again
