Delphi的PDF开发控件，llPDFLib是一个100 的Object Pascallibrary，用于创建PDF文档。用它创建PDF文档不使用任何DLL和其他第三方软件。llPDFLib包括TPDFDocument组件并带。--llPDFLib is pure Object Pascal library for create PDF documents. This library doesn t use any DLL or external third-party software to

TPrintPreview is a descendent of TScrollBox and has properties of both TScrollBox component and TPrinter class. The key features of TPrintPreview are: Automatically adjusts printer s paper size and orientation at the print time Automatically

数据注释，数据波形，读取图像文件，数据波形显示，-Data annotation, data waveforms, read image files, data waveform display,