wxBrush brush(colour, wxSOLID);
destDC.SetOptimization(FALSE);
destDC.SetBackground(brush);
destDC.Clear();
destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & srcDC, 0, 0, wxCOPY, TRUE);
wxBrush brush(colour, wxSOLID);
destDC.SetOptimization(FALSE);
destDC.SetBackground(brush);
destDC.Clear();
destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & srcDC, 0, 0, wxCOPY, TRUE);