Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
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Placing a button on the VFP form as a new child window
Reading metrics for the currently selected font
Simple printer queue monitor: deletes, pauses, resumes print jobs for local printer
Storing screen shot of a form to enhanced metafile (*.emf)
Winsock: retrieving the host information corresponding to a network address
Winsock: retrieving the standard host name and IP address for the local machine
How to adjust monitor brightness (Vista, monitor with DDC support)
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Copying files as a transacted operation (Vista)
Creating a directory on the FTP
Drawing icons associated with the VFP main window
GDI+: Using Scale and Shear transformations
How to retrieve list of system DSNs (Data Source Name) with parameters
Obtaining addresses for the adapters on the local computer (Win XP/2003/Vista)
Testing if a connection to an Url can be established
Displaying printer-properties Property Sheet for the specified printer

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More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
 
#DEFINE PRINTER_ACCESS_ADMINISTER  4
#DEFINE PRINTER_ACCESS_USE         8
DO decl
 
LOCAL cPrinter, hPrinter, lcPrnDefaults
 
cPrinter = GetPrnName()  && default printer
 
* PRINTER_DEFAULTS structure
lcPrnDefaults = Repli(Chr(0),8) +;
    Chr(PRINTER_ACCESS_ADMINISTER) + Repli(Chr(0),3)
 
hPrinter = 0
IF OpenPrinter(cPrinter, @hPrinter, lcPrnDefaults) = 0
    ? "Error opening printer [" + cPrinter + "]"
    RETURN
ENDIF
 
= PrinterProperties(GetActiveWindow(), hPrinter)
= ClosePrinter(hPrinter)
* end of main
 
FUNCTION GetPrnName
* returns default printer name from Windows Registry
    LOCAL lcBuffer, lcPrinter, lcDriver, lcPort
    lcBuffer = Repli(Chr(0), 120)
    = GetProfileString("Windows", "Device", ",,,",;
        @lcBuffer, Len(lcBuffer))
    lcBuffer = STRTRAN(lcBuffer, Chr(0), "")
RETURN SUBSTR(lcBuffer, 1, AT(",", lcBuffer, 1)-1)
 
PROCEDURE decl
    DECLARE INTEGER OpenPrinter IN winspool.drv;
        STRING pPrinterName, INTEGER @phPrinter, STRING pDefault
 
    DECLARE INTEGER GetProfileString IN kernel32;
        STRING lpApp, STRING lpKey, STRING lpDefault,;
        STRING @lpReturnedString, INTEGER nSize
 
    DECLARE INTEGER ClosePrinter IN winspool.drv INTEGER hPrinter 
    DECLARE INTEGER GetActiveWindow IN user32
 
    DECLARE INTEGER PrinterProperties IN winspool.drv;
        INTEGER hWnd, INTEGER hPrinter
 
 
 

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1321 bytes  
Created: 2003-01-20 09:58:07  
Modified: 2003-11-05 15:47:01  
Visits in 7 days: 75  
Listed functions:
ClosePrinter
GetActiveWindow
GetProfileString
OpenPrinter
PrinterProperties
Printer friendly API declarations
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