GetOpacity

获取批注不透明度。

继承自 ApiBaseAnnotation.GetOpacity。

示例

检索 PDF 中注释的透明度级别。

// How transparent is an annotation in a PDF?

// Check the opacity value that controls how see-through an annotation appears in a PDF.

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()}`);