Which kind of floating window are you talking about, a ToolWindow or a floating DockHost?
If you mean a single ToolWindow, use its Title property. If you want to make the Title longer and the tab text for it shorter, set a shorter length TabText property on it. So for instance a ToolWindow.Title could be set to "Visual Studio : [Project name] + [File name]", while its TabText could be set to "[File name]".
A floating DockHost (that can contain its own MDI docking area) will have its Title property set from the DockSite.FloatingWindowTitle property.
[Modified 5 months ago]