IXRScrollViewer::GetScrollableHeight (Compact 2013)
This method retrieves a value that represents the vertical size of the remaining area that can be scrolled, which is the difference between the height of the extent and the height of the viewport.
virtual HRESULT STDMETHODCALLTYPE GetScrollableHeight( float *pValue ) = 0;
[out] Pointer to a float value that indicates the vertical size of the remaining area that can be scrolled.
Returns an HRESULT that indicates success or failure.
.NET Framework Equivalent