Tab preview support is disabled by default in Gecko 1.9.2
nsITaskbarTabPreview for a window will automatically hide that window's
nsITaskbarWindowPreview; this is done by Windows and cannot be prevented. When there are no more tab previews left for a window, the window preview is automatically made visible again.
An application may have as many tab previews as memory allows.
You can't directly instantiate this interface; instead, call the
||The icon displayed next to the title in the preview. This is null by default.|
||The title displayed above the thumbnail. By default, this is an empty string.|
Used internally to ensure that the taskbar knows about this preview. If a preview is not registered, the API call to set its sibling (via the
move() method) will fail silently.
This method is only invoked when it's safe to make taskbar API calls.
Used internally to obtain the handle to the proxy window for the preview.
HWND for the preview's proxy window.
Relocates the preview relative to another tab preview from the same window.
void move( in nsITaskbarTabPreview aNext );
- The preview that this preview should be placed to the left of. A value of
nullindicates that this preview should be the rightmost one.