Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Using EnumPrinters function to enumerate locally installed printers
Using Extended MessageBox() Class
Winsock: how to retrieve the protocol information corresponding to a protocol number
Dial the Net Automatically
Drawing cursors for the classes defined by the system (preregistered): BUTTON, EDIT, LISTBOX etc.
Form Magnifier
GDI+: how to make VFP controls visually shake and shudder
GDI+: saving image of FoxPro form to graphics file (BMP, GIF, JPG, PNG, TIF)
High-powered ALLTRIM
How to enumerate cookies and URL History entries in the cache of the local computer
How to ping a remote site using IP Helper API calls
Obtaining information about all user accounts on a server (WinNT only)
Obtaining list of tables stored in an ODBC Data Source
Printing text on the client area of the main VFP window
Reading Internet Query options
Retrieveing general information about the driver and data source associated with an ODBC connection
Retrieving the names of all sections in an initialization file
Retrieving top-child window for the VFP form
Scanning a hierarchy of child windows down from the Windows Desktop
Testing an ODBC connection for supporting specific functionality
A client for testing non-blocking Winsock server
Accessing examples contained in this reference from a VFP application
Comparing file times
Copying strings through the global memory block
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: 52  
Listed functions:
ClosePrinter
GetActiveWindow
GetProfileString
OpenPrinter
PrinterProperties
Printer friendly API declarations
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