GetOpacity

获取批注不透明度。

继承自 ApiBaseAnnotation.GetOpacity。

示例

在 PDF 文档中创建方形注释并获取其不透明度。

// How to get the opacity for an annotation in a PDF document?

// Get the opacity and display the result in a PDF document.

let doc = Api.GetDocument();
let squareAnnot = Api.CreateSquareAnnot([10, 10, 160, 32]);
let page = doc.GetPage(0);
page.AddObject(squareAnnot);
console.log(`Annotation opacity is: ${squareAnnot.GetOpacity()}`);