Avoid selecting invalid tab when removing last page from wxOSX wxNotebook.

Closes #15897.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75663 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Draw the selected bitmap correctly in wxMSW buttons.

Clear the previously drawn bitmap before drawing the new one.

Closes #12550.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75664 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Send events when toggling wxPropertyGrid nodes from keyboard.

Closes #15899.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75665 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775