The DOC_INFO_1 structure describes a document that will be printed.
typedef struct _DOC_INFO_1 { // dci1
LPTSTR pDocName;
LPTSTR pOutputFile;
LPTSTR pDatatype;
} DOC_INFO_1;
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in winspool.h.
Unicode: Defined as Unicode and ANSI structures.
Printing and Print Spooler Overview, Printing and Print Spooler Structures, StartDocPrinter