Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
A procedure for setting file times
Accessing examples contained in this reference from a VFP application
Accessing examples contained in this reference through Web Services
Converting an HTTP time/date string to a SYSTEMTIME structure
Copying strings through the global memory block
Get the power status of your laptop computer
How to retrieve adapter information for the local computer (including MAC address)
Minimizing all running applications
Obtaining current Internet Explorer browser version and UserAgent
Quering a waveform-audio input device
Retrieving information specific to the current Time Zone
Using the Semaphore object to allow only one instance of VFP application running
Drawing a rectangle using Windows regular edges and borders
GDI+: creating scaled copy of image file
GDI+: retrieving list of available image encoders and image decoders
How to delete all print jobs for a printer
How to disable the Windows Clipboard (VFP9)
Obtaining a handle to the desktop associated with the calling thread
Printing text on the client area of the main VFP window
Printing text on the main VFP window
Reading header information from AVI file
Reading Internet Query options
Testing Clipboard functions: emptying the clipboard
The window and its ancestors
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: 56  
Listed functions:
ClosePrinter
GetActiveWindow
GetProfileString
OpenPrinter
PrinterProperties
Printer friendly API declarations
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