TextSearch searches through a Document for a user-given search pattern. TextSearch provides users with several useful search modes and extra information besides the found string that matches the pattern. TextSearch can either keep running until a matched string is found or be set to return periodically in order for the caller to perform any necessary updates (e.g., UI updates).

Arguments used as a parameter in the user defined callback function provided to SearchNextAsync(Action<(Of <<'(TextSearch..::..OnTextSearchAsyncCallbackArgs>)>>), Object).

Used to identify the location of text on a page. Useful for implementing text highlighting and copying.

Arguments used as a parameter in the user defined callback function provided to SelectByRectAsync(Int32, Point, Point, Action<(Of <<'(TextSelector..::..OnTextSelectionAsyncCallbackArgs>)>>)) and SelectByStructAsync(Int32, Point, Point, Action<(Of <<'(TextSelector..::..OnTextSelectionAsyncCallbackArgs>)>>)).

Represents a bounding box quadrangle around text. The points are ordered counter-clockwise, starting at the glyph's lower-left corner.

Search modes that control how searching is conducted.

The code indicating the reason that the search process concluded.