Re: How to insert into buffer?

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#16602

From: Remy Lebeau (TeamB)
Date: Thu, 08 May 2003 17:01

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"Jarkko Juntunen" <dzeidzei@suolakaivos.com> wrote in message
news:Xns937574BE25A36dzeidzeisuolakaivosc@207.105.83.65...

> I'd like to insert something into begining of my lpMsgBuffer.

You can't insert into lpMsgBuffer directly.  You would have to allocate a
second buffer, put "Can't Connect:" into it first, then copy the contents
lpMsgBuffer into the second buffer afterwards, ie:

    // "Can't Connect: " + lpMsgBuf + extra padding
    int len = lstrlen((LPCTSTR)lpMsgBuf) + 20;

    lpMyBuffer = (LPTSTR) GlobalAlloc(GPTR, len * sizeof(TCHAR));

    lstrcpy(lpMyBuffer, TEXT("Can't Connect: "));
    lstrcat(lpMyBuffer, (LPCTSTR)lpMsgBuf);

    MessageBox( NULL, lpMyBuffer, "Error", MB_OK | MB_ICONINFORMATION );
    GlobalFree(lpMyBuffer);

Or, just use the VCL and AnsiString:

    AnsiString Msg = "Can't Connect: " + SysErrorMessage(GetLastError());
    MessageBox( NULL, Msg.c_str(), "Error", MB_OK | MB_ICONINFORMATION );


Gambit

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Subject: Re: How to insert into buffer?
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