Rebake MSW makefiles properly after wxQt merge.

Somehow the makefiles contained references to a non-existing
src/common/textdlg.cpp, fix this by rebaking them.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77479 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add missing wxUSE_EXCEPTIONS checks.

Build fixes after StoreCurrentException and RethrowStoredException()
introduction: don't use the latter if exceptions support is turned off.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77480 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix order of radial gradient stops in wxMSW.

Ensure that the order of stops is consistent with the documentation and other
platforms behaviour, i.e. they are counted from inside to outside of the
circle and not vice versa, which happens to be the GDI+ convention.

Closes #16443.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77481 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Disable the use of std::exception_ptr for MSVC 2010.

While <exception> does define this type in this version of the compiler, it's
non-conforming and doesn't define conversion to bool, so we can't test whether
it is valid or not.

We could work around it but for now just disable the use of exception_ptr with
VC10 and only use it for VC11+.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77483 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add wxUSE_TASKBARBUTTON under MSW port.

Taskbar button features are only available under MSW port.

Author: Chaobin Zhang
Register message "TaskbarButtonCreated" when wxTopLevelWindowMSW is created.

This message is used to make sure the taskbar button is in place, so
wxTaskbarButton object can initialize correctly.

Author: Chaobin Zhang
Introduce skeleton of taskbar button feature.

- Add classes: wxTaskBarButton and wxTaskBarButtonImpl.
- New interface in wxTopLevelWindowMSW to get its wxTaskBarButton:
    MSWGetTaskBarButton.
- Changes after running: bakefile_gen -fmsvc
- A simple sample and build files under msvc.

Author: Chaobin Zhang
API for change the visibility of button in the taskbar.

- ShowInTaskbar and HideInTaskbar
- Sample of usage.

Author: Chaobin Zhang
APIs to support setting overlay icon, tooltip, thumbnail clip, progress state.

Author: Chaobin Zhang
APIs for adding a thumbnail toolbar with a specified set of buttons.

- AddThumbBarButton(wxThumbBarButton *button), ShowThumbnailToolbar().
- Add THBN_CLICKED message handler to top level window and generate a
  wxCommandEvent event.
- Sample.

Author: Chaobin Zhang
Move taskbar button from wxTopLevelWindowMSW to wxFrame.

Since there are two sub-classes of wxTopLevelWindowMSW: one is wxFrame, the
other is wxDialog. However, wxDialog have no button shown in taskbar on
windows, so the taskbar button feature should be only avaiable in wxFrame.

Author: Chaobin Zhang
Only register window message "TaskbarButtonCreated" when the first frame is created.

Author: Chaobin Zhang
Expose setting description of overlay icon for accessibility.

Author: Chaobin Zhang
API: SetThumbnailContents, for setting thumbnail contents with child window.

Author: Chaobin Zhang
Revise Show/Hide, for consistency with the other classes.

Author: Chaobin Zhang
Revise progress releted API to be more usual.

- Add PulseProgress
- Add SetProgressRange, instead of hard coding 100.

Author: Chaobin Zhang
Nit: fix code style.

Author: Chaobin Zhang
Work around the limitation of windows API when setting thumbnail toolbar buttons.

- New API: InsertThumbBarButton, AppendThumbBarButton, RemoveThumbBarButton.
- Though MSDN said that "Buttons cannot be added or deleted later, so this must
  be the full defined set. Buttons also cannot be reordered.", we can work
  around it by: when first time adding button, initialize all of the possible
  seven buttons and hide them, except the button adding. In the next time adding
  button, just show it, which can make it looks like it is added on the fly.

Author: Chaobin Zhang
Fix mingw build error of ITaskbarList3.

Author: Chaobin Zhang
Generate mingw makefiles, also move wxTaskBarButton into core.

Author: Chaobin Zhang