DXmSvnGetComponentWidth - Retrieves (returns) the width of a specified component.
The identifier (widget ID) of the SVN widget.
An integer that represents the component number.
routine is called whenever
the application requires the component width that is associated with a particular
component number. You can set the value for the width by using the
routine. Note that the SVN widget automatically increases the width field
whenever it encounters a component that is wider than the current width value.
An integer that represents the width of the component.