This allows Scroll{Lines,Pages}() methods inherited from wxWindow to work with
it.
Add a test of using them to the sample.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72203 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Trying to append a menu item with empty label resulted in an assert (at least
under wxGTK but probably elsewhere too), and in any case wasn't very useful,
so use "(untitled)" instead in this case.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72174 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add a special symbol which is defined only if the icons and other images (e.g.
cursor) are in the separate resource files and don't need to be embedded as
XPMs in the main program.
This makes the checks more clear and more customizable as it's enough to
change wxHAS_IMAGES_IN_RESOURCES definition instead of changing many platform
checks.
Closes#14050.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70789 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
