组

添加组形状

Aspose.Slides 支持在幻灯片上使用组形状。该功能帮助开发者支持更丰富的演示文稿。Aspose.Slides for C++ 支持添加或访问组形状。可以向已添加的组形状中添加形状以填充它，或访问组形状的任何属性。使用 Aspose.Slides for C++ 向幻灯片添加组形状的步骤如下：

1. 创建一个 Presentation 类的实例。
2. 通过使用其索引获取幻灯片的引用。
3. 向幻灯片添加一个组形状。
4. 向已添加的组形状中添加形状。
5. 将修改后的演示文稿保存为 PPTX 文件。

下面的示例向幻灯片添加了一个组形状。

For complete examples and data files, please go to https://github.com/aspose-slides/Aspose.Slides-for-C

	// The path to the documents directory.
	const String outPath = u"../out/CreateGroupShape_out.pptx";
	const String templatePath = u"../templates/Source Frame.pptx";

	// Load the desired the presentation
	SharedPtr<Presentation> pres = MakeObject<Presentation>();

	// Access first slide
	SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

	// Accessing shapes collection for selected slide
	SharedPtr<IShapeCollection> slideShapes = slide->get_Shapes();

	// Adding a group shape to the slide 
	SharedPtr<IGroupShape> groupShape = slideShapes->AddGroupShape();

	// Adding shapes inside added group shape 
	groupShape->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 300, 100, 100, 100);
	groupShape->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 500, 100, 100, 100);
	groupShape->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 300, 300, 100, 100);
	groupShape->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 500, 300, 100, 100);

	// Adding group shape frame 
	groupShape->set_Frame( MakeObject<ShapeFrame>(100, 300, 500, 40, NullableBool::False, NullableBool::False, 0));

	//Write the PPTX to Disk
	pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);

访问 AltText 属性

本主题展示了简单的步骤，配有代码示例，用于添加组形状和访问幻灯片上组形状的 AltText 属性。使用 Aspose.Slides for C++ 访问幻灯片中组形状的 AltText 的步骤如下：

1. 实例化 Presentation 类，该类表示一个 PPTX 文件。
2. 通过使用其索引获取幻灯片的引用。
3. 访问幻灯片的形状集合。
4. 访问组形状。
5. 访问 AltText 属性。

下面的示例访问组形状的替代文本。

For complete examples and data files, please go to https://github.com/aspose-slides/Aspose.Slides-for-C
// The path to the documents directory.
//const String outPath = u"../out/EmbeddedVideoFrame_out.pptx";
const String templatePath = u"../templates/AltText.pptx";

// Load the desired the presentation
SharedPtr<Presentation> pres = MakeObject<Presentation>(templatePath);

// Access first slide
SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0);

for (int i = 0; i < slide->get_Shapes()->get_Count(); i++)
{
	// Accessing the shape collection of slides
	System::SharedPtr<IShape> shape = slide->get_Shapes()->idx_get(i);

	if (System::ObjectExt::Is<GroupShape>(shape))
	{
		// Accessing the group shape.
		SharedPtr<GroupShape> grphShape = DynamicCast<Aspose::Slides::GroupShape>(shape);

		for (int j = 0; j < grphShape->get_Shapes()->get_Count(); j++)
		{
			SharedPtr<IShape> shape2 = grphShape->get_Shapes()->idx_get(j);
			String st = shape2->get_AlternativeText();
			// Accessing the AltText property
			System::Console::WriteLine(u"Shape Name : " + st);
			

		}
	}
}