fix running on GTK < 2.10 when built with later, broken in r72935

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77026 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix wxDC::DrawRectangle() when using RTL in wxMSW.

Extend the correct edge of the rectangle (always the physical right, not the
logical right) to fix off by one errors in RTL mode, affecting notably wxGrid.

See #16250.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77027 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove manual mirroring in RTL case from wxGrid code.

This is not necessary as wxDC already inherits RTL from the window itself and,
in fact, breaks the display when using RTL.

Closes #16250.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77037 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use NMTVDISPINFO instead of TV_DISPINFO in wxMSW code.

The latest w32api 4.0.3, used by MinGW project, still didn't manage to apply a
one line fix to define TV_DISPINFO correctly, so tweak our sources to avoid
using it.

See #15537.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77048 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Correct instructions for building wx applications with MSVC.

Use the correct $WXWIN/include/msvc path instead of the non-existing
$WXWIN/msvc.

Also mention that $WXWIN should actually be $(WXWIN) for MSVC.

Closes #16410.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77049 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Return correct string from wxEVT_TEXT wxComboBox events.

wxCommandEvent::GetString() could return empty string for the
programmatically-generated wxEVT_TEXT events from a wxComboBox.

Fix this by extending the on-demand string retrieval in wxCommandEvent to
wxComboBox as well (it was done only for wxTextCtrl).

Closes #3901.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@77056 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775