No real changes, just fix some typos in comments in the samples.

Closes #16734.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78273 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add wxEVT_MAGNIFY mouse event.

Currently this is implemented for wxOSX only.

Closes #14322.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78274 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775