Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Retrieving list of Global Atom names
Retrieving long values associated with the class of the VFP window
Running a regular FoxPro form while main VFP window is minimized
Setting the Window Region for a form
Creating two-byte hashes for a list of URLs
How to access a file using not its name but an alias (hard link)
How to display picture stored in enhanced-format metafile (*.emf)
Obtaining heap handles and enumerating memory blocks for the current VFP session (WinNT only)
Pocket PC: Folder Viewer
PocketPC: creating directories and files
Reading header information from AVI file
Reading parameters of streams in AVI file
Using Custom FTP class (DEFINE CLASS ftp As Custom)
Using the high-resolution performance counter
Converting an HTTP time/date string to a SYSTEMTIME structure
Displaying all TCP connections for the local system
Extended OS Version info
Retrieving configuration information for the specified server (Win98/Me)
Retrieving country-specific dialing information from the Windows Telephony list of countries
Retrieving the priority class for the current process
Searching for the specified file using the SearchPath
Starting a dialog box for connecting to network resources and passing input parameters
StrDup returns a pointer to the duplicate of a source VFP string
Terminating VFP application using the FatalAppExit
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
  • #DEFINE SC_MANAGER_ALL_ACCESS 0xF003F
    #DEFINE DELETE_SERVICE 0x00010000
    #DEFINE SERVICE_STOP 0x20
    #DEFINE SERVICE_CONTROL_STOP 1
    #DEFINE SERVICE_STATUS_SIZE 36
    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.
        ENDIF
    
        hService = OpenService(hManager, m.cServiceName,;
            BITOR(DELETE_SERVICE, SERVICE_STOP))
    
        IF hService = 0
            ? "Failed to obtain the handle to the service."
        ELSE
            * 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()
            ENDIF
            = CloseServiceHandle(m.hService)
        ENDIF
    
        = 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: 24  
    Listed functions:
    CloseServiceHandle
    ControlService
    DeleteService
    GetLastError
    OpenSCManager
    OpenService
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