small changes

2017-10-17 06:49:39 +08:00
parent 99a0cd2f8d
commit 24bbfc6493
3 changed files with 11 additions and 14 deletions
--- a/source/paint/graphics.cpp
+++ b/source/paint/graphics.cpp
@@ -271,7 +271,7 @@ namespace paint

 		graphics::operator bool() const noexcept
 		{
-			return impl_->handle;
+			return (impl_->handle != nullptr);
 		}

 		drawable_type graphics::handle() const