Gets the index of the character that the glyph cell bounding box contains at the specified point.
HRESULT getCharNumAtPosition( ISVGPoint *, long *pResult );
- [in] A SVGPoint point in the user space.
- [out, retval] A zero-based index of the character that is located at the given point.Note A value of -1 indicates that no such character exists. If multiple characters exist at the specified point, ISVGTextContentElement::getCharNumAtPosition returns the index of the character that the glyphs were rendered for last.
Returns S_OK if successful, or an error value otherwise.