Add resized flag to base class

base/vulkanexamplebase.cpp

@@ -2124,6 +2124,7 @@ void VulkanExampleBase::windowResize()
 		return;
 	}
 	prepared = false;
+	resized = true;
 
 	// Ensure all operations on the device have been finished before destroying resources
 	vkDeviceWaitIdle(device);

base/vulkanexamplebase.h

@@ -152,6 +152,7 @@ protected:
 	std::vector<VkFence> waitFences;
 public:
 	bool prepared = false;
+	bool resized = false;
 	uint32_t width = 1280;
 	uint32_t height = 720;