Dear All How is everyone today? First of all I should say I have been working with print drivers for just over a year so I am in no way shape or form a driver expert. But I have been trying to develop the holy grail of print driver applications if you will. We all know the common problem of once a print job is spooled it cant be changed. I always thought that the driver is what does the converstion from document to PS or PCL, but I dont think thats the case. This lead me to the question of how its spooled. Office applications and Acrobat reader and others must convert the document into somthing tangible for print drivers to understand. It is unreasonbale to think my old print driver written in 1998 can understand Office 2007 .docx’s right? So surly if we can convert a document to some sort of format that all print drivers understand wheter its EMF,PDF,or some equivilant and then the drivers translate that to PS or PCL Surly microsoft must tell HP and Sharp etc of this otherwise how will they been able to print in the first place. Now Ive come across the PrintDocument Class in C#, this allows you to change a variety of document properties according the capabilities of your printer driver. However because it cant read files (PDFs or office documents) it can only stream read. Which doesnt make it a viable option for printing. But if we convert the documents to some sort of EMF of PDF that can be fed into PrintDocument using a stream read surly we can modify a print jobs settings after its been theoratically been printed. For example when I open up a document in word with pictures in it and I click print, Word then converts it to something and then the driver converts it again to something the printer understands. If we can catch whats happening in between or write our own driver that will then call a C# application that will modify this Data stream we can change a job properties after it has been spooled. Once we have the properties wanted we can then send the stream on to the driver which will convert it to something that can be understood by the printer and eventually released So my question is what exactly is this data stream and how do I capture it? Regards Sam _________________________________________________________________ http://clk.atdmt.com/UKM/go/197222280/direct/01/ Do you have a story that started on Hotmail? Tell us now