Kbase P9288: How to list all connected printer names and printer ports in Windows?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
06/04/2011 |
|
Status: Verified
GOAL:
How to list all connected printer names and printer ports in Windows?
GOAL:
ABL / 4GL declaration for EnumPrinters function of Windows Print Spooler API
FACT(s) (Environment):
Windows
Progress 9.x
OpenEdge 10.x
FIX:
Use the windows API function call:
PROCEDURE EnumPrintersA EXTERNAL "winspool.drv":
/* printer object types */
DEFINE INPUT PARAMETER iFlags AS LONG.
/* name of printer object */
DEFINE INPUT PARAMETER cName AS CHARACTER.
/* information level */
DEFINE INPUT PARAMETER iLevel AS LONG.
/* printer information buffer */
DEFINE INPUT PARAMETER pPrinterEnum AS LONG.
/* size of printer information buffer */
DEFINE INPUT PARAMETER cbBuf AS LONG.
/* bytes received or required */
DEFINE OUTPUT PARAMETER pcbNeeded AS LONG.
/* number of printers enumerated */
DEFINE OUTPUT PARAMETER pcReturned AS LONG.
/* iResultReturned = 0 when on error */
DEFINE RETURN PARAMETER iResultReturned AS LONG.
END PROCEDURE.