Newsletter Archives - April, 2005

Volume 10. Issue 4

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Black Ice Printer Drivers - Maintain the same input and output filenames

The Black Ice printer driver supports seven filename generation methods:

  • Use the prefix and extension
  • Prefix and extension from the registry
  • Prefix and extension from the INI file
  • Exact filename
  • Exact filename from the registry
  • Exact filename from the INI file
  • Use the document name

In the past, the “Use the document name” has created some confusion among our customers. Many developers, when printing programmatically to the Black Ice printer, would like to use the file name of the original printed document as the file name of the generated image file. This is not directly possible since printer drivers are not aware of the name of the file printed by the printing application. When a printer driver prepares the print job, the printing application can pass a string to the printer driver specifying the document name, but in most cases that is not the same as the actual file name. For example if Word prints a file called test.doc, the document name passed by Word to the printer driver will be “Microsoft Word – test.doc”.

But there is hope! Using the BlackIceDEVMODE.dll or BlackIceDEVMODE.ocx controls, developers can solve this issue in a few steps.

1. When printing is done automatically, the printing application knows the name of the file which is going to be printed. Before printing, the application must read the name of the source file.

2. Once you have the name of the source file, use the BlackIceDEVMODE.dll or BlackIceDEVMODE.ocx controls to change the filename generation method to “Use exact filename” and set the output file name using the SetImageFileName() function to the desired file name. Cutting the extension of the original file, and replacing it with the file extension for the current file type can create the desired file name. Use the GetFileExtension() function to get the current file extension for the currently used file format.

Using these simple steps it is possible to create images having the source document’s name.  The latest Black Ice Printer Driver RTKs includes a simple sample application which demonstrates the above steps and can be used as a starting point for implementing this functionality in your own application.

 

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