Use Boolean variable to store Boolean values in wxPG.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78175 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/propgrid/propgrid.h

@@ -1931,7 +1931,11 @@ protected:
     unsigned char       m_mouseSide;
 
     /** True when editor control is focused. */
+#if WXWIN_COMPATIBILITY_3_0
     unsigned char       m_editorFocused;
+#else
+    bool                m_editorFocused;
+#endif
 
     /** 1 if m_latsCaption is also the bottommost caption. */
     //unsigned char       m_lastCaptionBottomnest;