Better logging small bug in wv-dialog, conversion to stdio.

scrbl/wv-dialog.scrbl

@@ -16,7 +16,7 @@
 Dialog-window wrapper built on top of @racket[wv-window%].
 
 This module exports the @racket[wv-dialog%] class. It is a specialized window
-class whose initial size and position are derived from its parent window.
+class whose initial size and position are derived from its parent window. Closing a dialog does not quit the application by default.
 
 @section{Overview}
 
@@ -25,7 +25,7 @@ a dialog relative to its parent window.
 
 The class inherits the window lifecycle, event handling, navigation, and dialog
 support from @racket[wv-window%]. Its only specialization in the current source
-is the implementation of @racket[init-size].
+is the implementation of @racket[init-size]. A dialog also changes the inherited @racket[quit-on-close] default to @racket[#f].
 
 @section{Class: wv-dialog%}
 
@@ -37,12 +37,14 @@ The class inherits the fields @racket[parent], @racket[settings],
 @racket[wv-context], @racket[html-path], @racket[x], @racket[y],
 @racket[width], and @racket[height] from @racket[wv-window%].
 
-@defconstructor[()]{
+@defconstructor[([quit-on-close any/c #f])]{
 
 Creates a dialog window.
 
-The constructor does not define additional initialization arguments of its own.
-Construction is delegated to @racket[wv-window%] through @racket[super-new].
+The inherited @racket[quit-on-close] initialization argument defaults to
+@racket[#f] for dialogs. Closing a dialog therefore closes only that dialog and
+does not release @racket[webview-wait-for-quit]. Pass @racket[#t] explicitly
+only when closing this dialog should terminate the application.
 }
 
 @defmethod[(init-size) any/c]{