[news.eclipse.platform] How to implement a MessageDialog

[mikaelpetterson@xxxxxxxxxxx (Mikael Petterson)]

Hi,

When I open a file in the workspace into the eclipse editor and start 
editing it will be checkout ( that is what our clearcase plug-in does.)

I am not sure how this works but we have class called ClearcaseProvider 
that extends RepositoryProvider.
ClearcaseProvider has a private final class:

private final class CheckOutOperation implements IRecursiveOperation {
public IStatus visit(IResource resource, IProgressMonitor monitor) {
}
}

This visit() is called and it is in here a need to generate a 
MessageDialog.

MessageDialog(Shell parentShell, String dialogTitle, Image 
dialogTitleImage, String dialogMessage, int dialogImageType, String[] 
dialogButtonLabels, int defaultIndex) 

Since I have no window ( or do I?) how shall I set my parentShell 
parameter when I create my MessageDialog.

cheers,

//mike