- also, OnExit() is not called if OnInit() fails
- wxTheApp can't be assigned to any longer, use wxApp::SetInstance() instead
- wxFileType::GetIcon() returns wxIconLocation, not wxIcon
- also, OnExit() is not called if OnInit() fails
- wxTheApp can't be assigned to any longer, use wxApp::SetInstance() instead
- wxFileType::GetIcon() returns wxIconLocation, not wxIcon