NX二次开发--导出png格式的图像

在NX1934中，有直接导出png图像的功能，采用二次开发，如下所示：

        public static void ExportImage(string imageFile, NXOpen.Gateway.ImageExportBuilder.FileFormats fileFormats , NXOpen.Gateway.ImageExportBuilder.BackgroundOptions backgroundOption)
        {
            NXOpen.Session theSession = NXOpen.Session.GetSession();
            NXOpen.Part workPart = theSession.Parts.Work;
            NXOpen.Part displayPart = theSession.Parts.Display;
  
            NXOpen.Session.UndoMarkId markId1;
            markId1 = theSession.SetUndoMark(NXOpen.Session.MarkVisibility.Visible, "起点");

            NXOpen.UI theUI = NXOpen.UI.GetUI();

            NXOpen.Gateway.ImageExportBuilder imageExportBuilder1;
            imageExportBuilder1 = theUI.CreateImageExportBuilder();

            imageExportBuilder1.RegionMode = false;

            int[] regiontopleftpoint1 = new int[2];
            regiontopleftpoint1[0] = 0;
            regiontopleftpoint1[1] = 0;
            imageExportBuilder1.SetRegionTopLeftPoint(regiontopleftpoint1);

            imageExportBuilder1.RegionWidth = 1;

            imageExportBuilder1.RegionHeight = 1;

            imageExportBuilder1.FileFormat = fileFormats;

            imageExportBuilder1.FileName =imageFile;

            imageExportBuilder1.BackgroundOption = backgroundOption;

            imageExportBuilder1.EnhanceEdges = false;

            NXOpen.NXObject nXObject1;
            nXObject1 = imageExportBuilder1.Commit();

            theSession.DeleteUndoMark(markId1, "导出图像");

            imageExportBuilder1.Destroy();
        }

其中，NXOpen.Gateway.ImageExportBuilder.FileFormats是导出的文件格式，如.png等；NXOpen.Gateway.ImageExportBuilder.BackgroundOptions 是导出时背景颜色。

也可以用ufDisp.CreateImage("E:\\12.bng",UFDisp.ImageFormat.Png,UFDisp.BackgroundColor.White)，创建png格式的图像文件。