implement wxLaunchDefaultApplication() for MSW and document it (#9810)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54926 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/utils.h

@@ -421,6 +421,18 @@ long wxNewId();
 */
 void wxRegisterId(long id);
 
+/**
+    Opens the @a document in the application associated with the files of this
+    type.
+
+    The @a flags parameter is currently not used
+
+    Returns @true if the application was successfully launched.
+
+    @header{wx/utils.h}
+*/
+bool wxLaunchDefaultApplication(const wxString& document, int flags = 0)
+
 /**
     Opens the @a url in user's default browser.