Added wxDllWidget from Vaclav Slavik which allows wx widgets derived

from wxWindow to be loaded from a C++ .dll (or .so) and be used in a
wxPython program, without the widget having to be SWIGged first.

Various updates for distribs


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12890 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/dllwidget/test_dll.cpp

@@ -0,0 +1,54 @@
+
+#include <wx/defs.h>
+#include <wx/window.h>
+#include <wx/msgdlg.h>
+
+#include "../dllwidget.h"
+
+class TestWindow : public wxWindow
+{
+public:
+    TestWindow(wxWindow *parent, long style)
+        : wxWindow(parent, -1)
+    {
+        SetBackgroundColour(wxColour("white"));
+    }
+
+    int HandleCommand(int cmd, const wxString& param)
+    {
+        if (cmd == 1)
+        {
+            SetBackgroundColour(wxColour("red"));
+            Refresh();
+        }
+
+        if (cmd == 2)
+        {
+            SetBackgroundColour(wxColour(param));
+            Refresh();
+        }
+
+        else if (cmd == 3)
+        {
+            wxMessageBox("Message from embedded widget:\n\n" + param);
+        }
+
+        return 0;
+    }
+private:
+    DECLARE_ABSTRACT_CLASS(TestWindow)
+};
+
+IMPLEMENT_ABSTRACT_CLASS(TestWindow, wxWindow)
+
+
+//DECLARE_DLL_WIDGET(TestWindow)
+static int SendCommandToTestWindow(wxWindow *wnd, int cmd, const wxString& param)
+{
+    return wxStaticCast(wnd, TestWindow)->HandleCommand(cmd, param);
+}
+
+
+BEGIN_WIDGET_LIBRARY()
+    REGISTER_WIDGET(TestWindow)
+END_WIDGET_LIBRARY()