

'宣言 Public Class PngExportProvider Inherits ImageExportProvider
'使用法 Dim instance As PngExportProvider
public class PngExportProvider : ImageExportProvider
System.Object
   C1.C1Preview.Export.ExportProvider
      C1.C1Preview.Export.PagesExportProvider
         C1.C1Preview.Export.ImageExportProvider
            C1.C1Preview.Export.PngExportProvider