Optional aInstancePtr: objectA run time mechanism for interface discovery.
NS_OK if the interface is supported by the associated instance, NS_NOINTERFACE if it is not.
aInstancePtr must not be null.
[in] A requested interface IID
[out] A pointer to an interface pointer to receive the result.
Called to obtain the tooltip text for a node.
aNode The node to obtain the text from.
aText The tooltip text.
aDirection The text direction (ltr or rtl) to use
PR_TRUE if tooltip text is associated
with the node and was returned in the aText argument;
PR_FALSE otherwise.
Generated using TypeDoc
An interface implemented by a tooltip text provider service. This service is called to discover what tooltip text is associated with the node that the pointer is positioned over.
Embedders may implement and register their own tooltip text provider service if they wish to provide different tooltip text.
The default service returns the text stored in the TITLE attribute of the node or a containing parent.
Note
The tooltip text provider service is registered with the contract defined in NS_TOOLTIPTEXTPROVIDER_CONTRACTID.
See