Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Joining local computer to a domain (XP/2000)
Retrieving information about MS-DOS device names using QueryDosDevice (WinNT only)
Setting the Window Region for a form
GDI+: converting text strings to images and saving in a graphics file
Obtaining window class name for the main VFP window
Retrieving configuration information for the specified server (Win98/Me)
Retrieving default spooling directory name
Retrieving list of supported paper names (for example, Letter or Legal) for a given printer
Testing Transparent Menu Class with top-level form (requires VFP9)
Using ActiveX control for adding a menu directly to a FoxPro MDI form
Using SQLBrowseConnect to connect to a data source through a number of iterative calls (SQL Server)
Closing Windows
Converting characters to upper or lower case
Converting path to original case
Converting strings between ANSI and OEM
Creating a file, then moving it to another destination
How to intercept window messages sent to VFP form
Obtaining the external IP address of local computer
Retrieving a handle to DLL and address of an exported function in it
Retrieving the path of the printer-driver directory and printer-processor directory
Finding the application, icon and friendly names associated with a file name
Hiding mouse cursor
How to access a file using not its name but an alias (hard link)
Open and close a Simple MAPI Session
How to delete a service object

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Before you begin:
This code sample shows how to delete the service object created in How to create a service object code sample.

See also:
  • Encapsulating access to the Windows Services in a class
    DO declare
    DO DeleteWinService WITH "FriendlyService"
    FUNCTION DeleteWinService(cServiceName)
        LOCAL hManager, hService
        hManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS)
        IF m.hManager = 0
            ? "Call to OpenSCManager failed."
            RETURN .F.
        hService = OpenService(hManager, m.cServiceName,;
        IF hService = 0
            ? "Failed to obtain the handle to the service."
            * stop service if it is running
            LOCAL cStatusInfo
            cStatusInfo = REPLICATE(CHR(0), SERVICE_STATUS_SIZE)
            = ControlService(m.hService, SERVICE_CONTROL_STOP, @cStatusInfo)
            IF DeleteService(m.hService) = 0
                ? "DeleteService failed with error code", GetLastError()
            = CloseServiceHandle(m.hService)
        = CloseServiceHandle(m.hManager)
    * end of main
    PROCEDURE declare
        DECLARE INTEGER GetLastError IN kernel32
        DECLARE INTEGER CloseServiceHandle IN advapi32 INTEGER hSCObject
        DECLARE INTEGER OpenSCManager IN advapi32;
            STRING lpMachineName, STRING lpDatabaseName,;
            LONG dwDesiredAccess
        DECLARE INTEGER OpenService IN advapi32;
            INTEGER hSCManager, STRING lpServiceName,;
            LONG dwDesiredAccess
        DECLARE INTEGER DeleteService IN advapi32 INTEGER hService
        DECLARE INTEGER ControlService IN advapi32;
            INTEGER hService, LONG dwControl,;
            STRING @lpServiceStatus

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    1536 bytes  
    Created: 2006-09-30 13:56:37  
    Modified: 2006-09-30 13:59:02  
    Visits in 7 days: 18  
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