Include wxEVT_AUINOTEBOOK_PAGE_XXX in the documented interface.

This facilitates automatic language bindings generation.

Closes #16019.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76003 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Clarify that there is only a single TAB traversal implementation.

Don't imply that wxPanel can use either native or generic TAB traversal
implementation because this is not true.

Closes #16020.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76004 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Mention that wxAuiNotebook uses native theme under wxGTK.

Closes #16021.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76005 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add helper Set32bppHDIB() method to wxMSW wxBitmapRefData.

No real changes, just add a helper to allow replacing the HBITMAP stored in
wxBitmapRefData without changing anything else, this is going to be used in
another place soon.

See #12762.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76006 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix loading of bitmap with non-pre-multiplied alpha in wxMSW.

Detect when the bitmap file doesn't have pre-multiplied alpha and pre-multiply
it ourselves when loading it in this case.

Closes #12762.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76007 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775