Use WS_EX_CONTROLPARENT for wxStaticBox in wxMSW.

This doesn't change anything currently but it seems correct to use this style
with wxStaticBox as it can now contain other windows (and so be "control
parent"), so it could allow Windows or other programs checking for this style
to handle it more correctly.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72662 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Allow using windows that can't be focused with wxNavigationEnabled<>.

The code in wxNavigationEnabled<> assumed that the window itself could be
focused if it didn't have any focusable children because it was originally
extracted from wxPanel that can, indeed, be focused. This is however not the
case for all windows, notably not for wxStaticBox which now derives from
wxNavigationEnabled as well but can never be focused itself.

Add wxControlContainer::DisableSelfFocus() and call it from wxStaticBox to
support this situation. This required splitting m_acceptsFocus flag into
m_acceptsFocusSelf and m_acceptsFocusChildren and updating various methods
using them.

See #13271.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72663 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Set wxTAB_TRAVERSAL for wxNavigationEnabled<> windows with focusable children.

We need to have this flag under wxMSW in order for navigation events to be
generated for the window. As wxNavigationEnabled can't set this flag on
creation because its ctor is called too early, do it in overridden AddChild().

Closes #13271.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72664 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Freeze wxTreeCtrl in wxMSW by hiding it.

This is far from perfect but better than alternative as freezing this control
by sending WM_SETREDRAW to it can result in completely broken behaviour as
explained in http://support.microsoft.com/kb/130611. And not freezing it at
all shows horrible flicker when adding even a relatively small number of items
at once to the control because it recalculates and repositions its scrollbars
after every parent node addition.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72665 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Set the standard sample icon for the exec sample.

Do this for consistency with all the other ones and also because it makes it
simpler to notice any unwanted icons for hidden windows created by this sample.

See #13251.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72666 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use a "hidden" dialog, not frame, in sync wxExecute() hack in wxMSW.

Replace a "hidden" (not really, but shown far off screen) frame with a dialog
to avoid this frame appearing in the Alt+TAB list.

Closes #13251.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Display system-provided drag images during drag-and-drop in wxMSW.

This is especially useful when dragging files from Explorer as it provides
big, informative drag images for them that can be easily displayed using
Windows shell support for them.

See #14697.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72668 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
No changes, just update a comment about default buttons in wxMSW.

Remove the TODO from it because it's not really obvious if using the proposed
approach is such a good idea.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72669 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Document that HasFocus() is new in 2.9.

Closes #14740.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72670 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Just correct the path in the header comment.

Add the missing "private" path component.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72671 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Make TAB behaviour in wxGrid more configurable.

Allow making TAB/Shift-TAB wrap to the next/previous row or going to the
next/previous control when the cursor is at the end/beginning of the current
row easily.

Also add wxEVT_GRID_TABBING event to allow customizing TAB behaviour even
further.

Update the sample to show the different possible standard behaviours and a
stupid example of a custom one (it would be probably more useful to implement
something a tad more realistic, e.g. tabbing to the next non-empty cell).

Closes #14711.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72672 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775