void CSolidHoopsView::OnExtraSlot2()
{
	static const size_t imageBytesPerPixel = 4;

	HC_KEY imageKey;
	char buffer[4096];
	HC_KEY image_seg = HC_Open_Segment("/image");
	{
		imageKey = HC_Insert_Image(0.0, 0.0, 0.0, "RGBA, name = transparent_background_image", 300, 300, 0);
	}
	HC_Close_Segment();

	const char* offscreenRenderSeg = "?driver/dx11/image";
	HC_Open_Segment(offscreenRenderSeg);
	{
		// for a completely transparent window background
		HC_Set_Driver_Options("window opacity = 0.0");

		HC_Insert_Line(-1.0, -1.0, 0.0, 1.0, 1.0, 0.0);

		// Using the image key modifier when setting the window id to indicate that we are rendering offscreen.
		sprintf(buffer, "isolated, use window id = image key = 0x%p, subscreen = (-1, 1, -1, 1)", (void*)imageKey);
		HC_Set_Driver_Options(buffer);
		HC_Set_Color("lines=blue , windows=green");
	}
	HC_Close_Segment();
	HC_Update_One_Display(offscreenRenderSeg);

	int width, height;
	char format[4096];
	float cx, cy, cz;
	HC_Show_Image_Size(imageKey, &cx, &cy, &cz, format, &width, &height);
	size_t pixelCount = width * height;
	size_t imageDataSize = imageBytesPerPixel * pixelCount;
	unsigned char* imageData = new unsigned char[imageDataSize];
	HC_Show_Image(imageKey, &cx, &cy, &cz, format, &width, &height, imageData);
	unsigned char* current = imageData;

	// Analyze resulting image.
	static bool analizeImage = true;
	if (analizeImage)
	{
		bool foundTransparent = false;
		for (size_t i = 0; i < pixelCount && !foundTransparent; ++i)
		{
			if (current[3] < 255)
				foundTransparent = true;
			current += imageBytesPerPixel;
		}
	}
	delete[] imageData;

	HC_Delete_Segment(offscreenRenderSeg);

	HC_Open_Segment_By_Key(m_pHView->GetModelKey());
	{
		HC_Include_Segment_By_Key(image_seg);
		HC_Set_Color("windows=red");
	}
	HC_Close_Segment();

	m_pHView->Update();
}