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

Get current number of open CompressedVectorWriter objects writing to ImageFile.

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

Precondition:
This ImageFile must be open (i.e. isOpen()).
Postcondition:
No visible state is modified.
Returns:
The current number of open CompressedVectorWriter objects writing to ImageFile.
Exceptions:
E57_ERROR_IMAGEFILE_NOT_OPEN
E57_ERROR_INTERNALAll objects in undocumented state
See also:
SourceDestBufferFunctions.cpp example, CompressedVectorNode::writer, CompressedVectorWriter
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