Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
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Using the Semaphore object to allow only one instance of VFP application running
Winsock: creating a socket that is bound to a specific service provider
A client for testing non-blocking Winsock server
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GDI+: cropping images
GDI+: Drawing a Pie Chart
GDI+: sending image of FoxPro form to printer
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How to retrieve the number of print jobs queued for the printer
Obtaining a handle to the desktop associated with the calling thread
Obtaining names and positions for shortcuts located on the Windows Desktop
Retrieveing information about the active window (even if it is not owned by the calling process)
Retrieving the command line for the VFP session
Vertical Label control
Creating a window using CreateWindowEx function
Displaying dimmed window behind VFP top-level form
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GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Winsock: connecting to a news server (NNTP, port 119)

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More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
Before you begin:
This sample shows how to retrieve a list of newsgroups stored on a news server. The base class contains practically all methods to extend this code for reading and posting messages to a newsgroup.



The code connects to NNTP server news.microsoft.com. Any other NNTP server can be used.
 
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9824 bytes  
Created: 2003-02-23 10:42:07  
Modified: 2011-12-10 09:20:22  
Visits in 7 days: 16  
Listed functions:
closesocket
gethostbyname
GlobalAlloc
GlobalFree
GlobalSize
htons
inet_addr
inet_ntoa
recv
send
socket
WSACleanup
WSACloseEvent
WSAConnect
WSACreateEvent
WSAEventSelect
WSAGetLastError
WSARecv
WSASend
WSAStartup
WSAWaitForMultipleEvents
Printer friendly API declarations
My comment:
Some useful links:
  • RFC977. Network News Transfer Protocol
  • Network News Transfer Protocol on freesoft.org
  • How to use Winsock Control in order to build Internet applications


    #kwd: sln_winsock.
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    User Contributed Notes:
    johnk@spectrumdata.com | 2006-05-15 15:39:40
    This example does not work. WS_Connect cannot find entry point in dll
    A.M. | 2006-05-15 16:11:30
    Replace line
    nResult = ws_connect(hSocket, @cBuffer, Len(cBuffer))

    with
    DECLARE INTEGER WSAConnect IN ws2_32;
        INTEGER s, STRING @sname, INTEGER namelen,;
        INTEGER lpCallerData, INTEGER lpCalleeData,;
        INTEGER lpSQOS, INTEGER lpGQOS

    nResult = WSAConnect(hSocket, @cBuffer, Len(cBuffer), 0, 0, 0, 0)

    It may work better.

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