The CopyTo method copies/exports the control's view to BMP, PNG, JPG, GIF, TIFF, PDF or EMF graphical files. The CopyTo returns 0, if any error occurs, or it returns the number of files being created. The Path parameter should include a %i expression that's replaced with the index of the page being generated. If no %i sequence is included in the Path parameter the last page is saved to specified file. The files can be opened with any application that knows how to open or handle the EMF files, such as Microsoft Office Picture Manager, Microsoft PaintBrush, and so on. During CopyTo method any exiting file ( with the generated name ) is deleted before created. The PrintExt property must be specified before calling the CopyTo method, as you would do a previewing using the Preview method. If the PrintExt property is empty before calling the CopyTo method, it returns 0, and no files are created.

• The BMP file format, also known as bitmap image file or device independent bitmap (DIB) file format or simply a bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device (such as a graphics adapter)
• The JPEG file format (seen most often with the .jpg extension) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.
• The GIF ( Graphics Interchange Format ) is a bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability.
• The TIFF (Tagged Image File Format) is a computer file format for storing raster graphics images, popular among graphic artists, the publishing industry, and both amateur and professional photographers in general.
• The PNG (Portable Network Graphics) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet
• The PDF (Portable Document Format) is a file format used to present documents in a manner independent of application software, hardware, and operating systems. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it. 
• The EMF ( Enhanced Metafile Format ) is a 32-bit format that can contain both vector information and bitmap information. This format is an improvement over the Windows Metafile Format and contains extended features, such as the following

  • Built-in scaling information 
  • Built-in descriptions that are saved with the file 
  • Improvements in color palettes and device independence 

  The EMF format is an extensible format, which means that a programmer can modify the original specification to add functionality or to meet specific needs. You can paste this format to Microsoft Word, Excel, Front Page, Microsoft Image Composer and any application that know to handle EMF formats.

The following VB6 sample generates EMF files instead printing the Exontrol's ExG2antt/COM content:

With Print1
    Set .PrintExt = G2antt1.Object
    Debug.Print "Files generated: " & .CopyTo("C:\Temp\Print\Page%i.emf")
End With

The following VB/NET sample generates EMF files instead printing the Exontrol's ExG2antt/NET content:

With Exprint1
    .PrintExt = Exg2antt1
    System.Diagnostics.Debug.WriteLine("Files generated: " & .CopyTo("C:\Temp\Print\Page%i.emf"))
End With