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How to get info from a pointer ?
Message
 
 
To
31/03/2003 12:02:35
General information
Forum:
Visual FoxPro
Category:
Windows API functions
Miscellaneous
Thread ID:
00772050
Message ID:
00772241
Views:
16
>DECLARE INTEGER GetPrinter IN winspool.drv ;
>INTEGER hPrinter, INTEGER Lvl, STRING @pPrinter,;
>INTEGER cbBuf, INTEGER @pcbNeeded
>
> Here is the structure of PRINTER_INFO_2 of GETPRINTER function
>
> pServerName As Long
> pPrinterName As Long
> pShareName As Long
> pPortName As Long
> pDriverName As Long
> pComment As Long
> pLocation As Long
> pDevMode As Long 'DEVMODE
> pSepFile As Long
> pPrintProcessor As Long
> pDatatype As Long
> pParameters As Long
> pSecurityDescriptor As Long 'SECURITY_DESCRIPTOR
> Attributes As Long
> Priority As Long
> DefaultPriority As Long
> StartTime As Long
> UntilTime As Long
> Status As Long
> cJobs As Long
> AveragePPM As Long
>
>How can i get the pDriverName value ?

Download Heap allocation class File #9482.
Declare Integer GetPrinter in WinSpool.Drv as WS_GetPrinter ;
		Integer hPrinter, ;
		Integer Level, ;
		String  @pPrinter, ;
		Integer cbBuf, ;
		Integer @pcbNeeded

SET PROCEDURE TO clsheap
lnNeeded = 4096
lcBuffer = REPLICATE( CHR(0), lnNeeded)
lnOK = WS_GetPrinter( lnHandle, 2, @lcBuffer, lnNeeded, @lnNeeded )
lcDriverName = GetMemString(DwordToNum(SUBSTR(lcBuffer,13,4)))
--sb--
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