IAnnotationHover (Eclipse Platform API Specification)

All Known Implementing Classes:

DefaultAnnotationHover, LineChangeHover
```
public interface IAnnotationHover
```
Provides the information to be displayed in a hover popup window which appears over the presentation area of annotations.
In order to provide backward compatibility for clients of IAnnotationHover, extension interfaces are used as a means of evolution. The following extension interfaces exist:
- IAnnotationHoverExtension since version 3.0 allowing a text hover to provide a creator for the hover control. This allows for sophisticated hovers in a way that information computed by the hover can be displayed in the best possible form.
- IAnnotationHoverExtension2 since version 3.2 allowing a text hover to specify whether it handles mouse-wheel events itself.
Clients may implement this interface.
See Also:

IAnnotationHoverExtension, IAnnotationHoverExtension2

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getHoverInfo(ISourceViewer sourceViewer, int lineNumber)`	Returns the text which should be presented in the a hover popup window.

- Method Detail
  - getHoverInfo
```
String getHoverInfo(ISourceViewer sourceViewer,
                    int lineNumber)
```
    Returns the text which should be presented in the a hover popup window. This information is requested based on the specified line number.
    
    Parameters:
    
    sourceViewer - the source viewer this hover is registered with
    
    lineNumber - the line number for which information is requested
    
    Returns:
    
    the requested information or null if no such information exists