DXmSvnGetNumSelections - Retrieves (returns) the number of
Widget widget );
The identifier (widget ID) of the SVN widget.
The DXmSvnGetNumSelections routine returns the number of
entries currently selected by the user. Use this routine
to determine the number of entries required in the array
being passed to the DXmSvnGetSelections routine. Make
this call in your application between calls to DXmSvnDisableDisplay
and DXmSvnEnableDisplay to ensure that the
selected list is not changing.
An integer that represents the number of selected entries.
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