Returns a short or long textual description of the stack frame.
[in] Flag, where TRUE returns a long description and FALSE returns a short description.
[out] The description of the stack frame.
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
The method succeeded.
Typically, if fLong is FALSE, this method provides only the name of the function associated with the stack frame. When fLong is TRUE, this method may also provide the function parameters and other relevant information.