Implemented MSW's paint region clipping, but

it exposed some bug in GTK's guffaw stuff.
  Implmented GC pooling.
  Implemented Corrcet mixing of pain region clipping,
    user clipping and masked bitmap clipping.
  Minor other corrections.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6172 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/printing/printing.cpp

@@ -104,12 +104,14 @@ bool MyApp::OnInit(void)
     file_menu->Append(WXPRINT_PAGE_SETUP, "Page Set&up...",              "Page setup");
     file_menu->Append(WXPRINT_PREVIEW, "Print Pre&view",              "Preview");
     
+#if wxUSE_ACCEL
     // Accelerators
     wxAcceleratorEntry entries[1];
     entries[0].Set(wxACCEL_CTRL, (int) 'V', WXPRINT_PREVIEW);
     wxAcceleratorTable accel(1, entries);
     frame->SetAcceleratorTable(accel);
-    
+#endif
+
 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
     file_menu->AppendSeparator();
     file_menu->Append(WXPRINT_PRINT_PS, "Print PostScript...",              "Print (PostScript)");