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The GLG Toolkit version 4.4 has been released, bringing multiple innovations. The real-time scanning chart function has been upgraded, supporting various environments. It can display medical physiological data and parameters of industrial equipment. New APIs and properties have been added to optimize the data visualization effect. The SCADA viewer framework has been upgraded, supporting multi-page custom drawing, providing custom dialog boxes and components, and ensuring system security. The functions of custom component processing and interactive handlers have been newly added, improving development efficiency. The editor's extended API has been optimized, the viewport rendering has been improved, and components such as multi-line tab components and dashboard-style components have been newly added, enhancing performance and visual effects. The DXF converter has been improved, with a large number of errors fixed, enhancing the stability of the version. This version provides strong support for industries such as industrial control and medical monitoring, and promotes intelligent and efficient development.

GLG Toolkit 4.4 版本更新总结：
1. 实时扫描图表升级：绘图线自动回绕，支持多环境，展示医疗和工业数据，新增 API 和属性优化可视化效果。
2. SCADA 查看器框架升级：支持多页面自定义绘图，提供自定义对话框和部件，优化页面导航，保障系统安全。
3. 新增开发功能：自定义组件处理功能提升开发效率，新增自定义交互处理程序支持复杂应用逻辑。
4. 编辑器与视口改进：编辑器扩展 API 优化，视口渲染改进，新增 HTMLBackground 属性提升视觉效果。
5. 新部件与功能增强：新增多行选项卡部件和仪表板风格部件，增强子绘图和图像缓存控制，改进 DXF 转换器。
6. 稳定性提升：修复大量错误，优化多显示器系统对话框显示问题，提升版本可靠性。
7. 行业助力：为工业控制、医疗监测等行业提供强大支持，推动智能化、高效化发展。