You activate this feature by setting the variable
@code{tooltip-gud-tips-p} to @code{t}. Then you can display a
variable's value in a tooltip simply by pointing at it with the mouse.
+In graphical mode, with a C program, you can also display the #define
+directive assiciated with an identifier when program is not executing.
This operates in the GUD buffer and in source buffers with major modes
in the list @code{tooltip-gud-modes}.
debugger}).
Arrays and structures display their type only. You must display them
-separately to examine their values. @ref{Watch Expressions}.
+separately to examine their values. @xref{Watch Expressions}.
@item Registers Buffer
The registers buffer displays the values held by the registers