Article View: borland.public.cppbuilder.nativeapi
Article #11094access violation on InternetStatusCallback
From: ScOe
Date: Thu, 26 Feb 2004 21:32
Date: Thu, 26 Feb 2004 21:32
37 lines
2127 bytes
2127 bytes
Can anyone help me on this ...
typedef struct{
HWND hWindow; // Window handle
int nStatusList; // Identifier of the list box control to hold
the callbacks
HINTERNET hResource; // HINTERNET handle created by InternetOpenUrl
char szMemo[512]; // String to store status memo
} REQUEST_CONTEXT;
i initialize connection:
FINet = InternetOpen ("FTPCommander", INTERNET_OPEN_TYPE_DIRECT, NULL, 0,
0);
if (FINet == NULL)
ShowMessage ("Connection could not be established");
iscCallback = InternetSetStatusCallback(FINet,
&(INTERNET_STATUS_CALLBACK)CallMaster);
void __stdcall CallMaster (HINTERNET hInternet, DWORD_PTR dwContext,
DWORD dwInternetStatus, LPVOID lpvStatusInformation,
DWORD dwStatusInformationLength)
{
REQUEST_CONTEXT *cpContext;
cpContext = (REQUEST_CONTEXT*)dwContext;
AnsiString szStatusText;
switch (dwInternetStatus)
{
case INTERNET_STATUS_HANDLE_CREATED:
szStatusText.sprintf ("%s HANDLE_CREATED", cpContext->szMemo);
break;
i receive access violation on cpContext->szMemo ... so that means dwContext
doesnt exist ....
what do i need to do to initialize those values ?
i saw part of this at MSDN
Technical Details
Message-ID:
<403e6655@newsgroups.borland.com>Path:
arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mailShow Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,4610331582357ae2,start X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2004-02-26 13:40:26 PST From: "ScOe" <cbinders@hotmail.com> Newsgroups: borland.public.cppbuilder.nativeapi Subject: access violation on InternetStatusCallback Date: Thu, 26 Feb 2004 22:32:38 +0100 Lines: 39 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 NNTP-Posting-Host: 193.198.129.8 Message-ID: <403e6655@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1077831253 193.198.129.8 (26 Feb 2004 13:34:13 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail