Readonly
reallyOptional
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.
Generated using TypeDoc
Gets whether this frame really is a browser frame.
In order to really be a browser frame, this frame's nsIDOMMozBrowserFrame::mozbrowser attribute must be true, and the frame may have to pass various security checks.