E57 Foundation API v1.1.312  Aug. 10, 2011
int readerCount ( ) const

Get current number of open CompressedVectorReader objects reading from ImageFile.

CompressedVectorReader objects that still exist, but are in the closed state aren't counted. CompressedVectorReader objects are created by the CompressedVectorNode::reader function.

Precondition:
This ImageFile must be open (i.e. isOpen()).
Postcondition:
No visible state is modified.
Returns:
The current number of open CompressedVectorReader objects reading from ImageFile.
Exceptions:
E57_ERROR_IMAGEFILE_NOT_OPEN
E57_ERROR_INTERNALAll objects in undocumented state
See also:
SourceDestBuffer::pathName() example, CompressedVectorNode::reader, CompressedVectorReader
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