Compilation fix for PCH-less build of wxMSW.

Include wx/msw/ownerdrawnbutton.h usually included via wx/checkbox.h from the
PCH.

Closes #16241.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76483 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix harmless warning about using wxCONTROL_CHECKED in ternary operator.

Add wxCONTROL_NONE which is just a symbolic name for 0 and use it in the code
to avoid g++ 4.8 warnings about mixing enum and int in conditional expression.

Closes #16242.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76484 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Do export wxMSWOwnerDrawnButton from DLL in wxMSW.

This class shouldn't need to be exported but not doing it breaks builds using
LTCG with Intel compiler, so do export it to avoid this problem.

Closes #16237.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76485 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove wxStyledTextEvent::m_text and m_dragText.

These fields were unnecessary and duplicated m_cmdString inherited from the
base class.

Also use base class GetString() instead of the redundant GetText() and
GetDragText() in the code, even though these methods are still kept for
backwards compatibility.

See #16191.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76486 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add wxStyledTextCtrl copy/paste text events.

Add wxEVT_STC_CLIPBOARD_{COPY,PASTE} events, allowing to transform the text
being copied from or pasted into wxStyledTextCtrl.

Closes #16191.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76487 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775